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<div class="title">kmp_barrier.cpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * kmp_barrier.cpp</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> */</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> </div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> </div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">//===----------------------------------------------------------------------===//</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// The LLVM Compiler Infrastructure</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">//</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// This file is dual licensed under the MIT and the University of Illinois Open</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// Source Licenses. See LICENSE.txt for details.</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">//</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">//===----------------------------------------------------------------------===//</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "kmp.h"</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include "kmp_wait_release.h"</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include "kmp_stats.h"</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include "kmp_itt.h"</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include "kmp_os.h"</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#if KMP_MIC</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <immintrin.h></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#define USE_NGO_STORES 1</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#endif // KMP_MIC</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#if KMP_MIC && USE_NGO_STORES</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">// ICV copying</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#define ngo_load(src) __m512d Vt = _mm512_load_pd((void *)(src))</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#define ngo_store_icvs(dst, src) _mm512_storenrngo_pd((void *)(dst), Vt)</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#define ngo_store_go(dst, src) _mm512_storenrngo_pd((void *)(dst), Vt)</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#define ngo_sync() __asm__ volatile ("lock; addl $0,0(%%rsp)" ::: "memory")</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#define ngo_load(src) ((void)0)</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#define ngo_store_icvs(dst, src) copy_icvs((dst), (src))</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#define ngo_store_go(dst, src) KMP_MEMCPY((dst), (src), CACHE_LINE)</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#define ngo_sync() ((void)0)</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#endif </span><span class="comment">/* KMP_MIC && USE_NGO_STORES */</span><span class="preprocessor"></span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="keywordtype">void</span> __kmp_print_structure(<span class="keywordtype">void</span>); <span class="comment">// Forward declaration</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment">// ---------------------------- Barrier Algorithms ----------------------------</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment">// Linear Barrier</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> __kmp_linear_barrier_gather(<span class="keyword">enum</span> barrier_type bt, kmp_info_t *this_thr, <span class="keywordtype">int</span> gtid, <span class="keywordtype">int</span> tid,</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordtype">void</span> (*reduce)(<span class="keywordtype">void</span> *, <span class="keywordtype">void</span> *)</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  USE_ITT_BUILD_ARG(<span class="keywordtype">void</span> * itt_sync_obj) )</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> {</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  KMP_TIME_DEVELOPER_BLOCK(KMP_linear_gather);</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keyword">register</span> kmp_team_t *team = this_thr->th.th_team;</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keyword">register</span> kmp_bstate_t *thr_bar = & this_thr->th.th_bar[bt].bb;</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keyword">register</span> kmp_info_t **other_threads = team->t.t_threads;</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_linear_barrier_gather: T#%d(%d:%d) enter for barrier type %d\n"</span>,</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  gtid, team->t.t_id, tid, bt));</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  KMP_DEBUG_ASSERT(this_thr == other_threads[this_thr->th.th_info.ds.ds_tid]);</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor">#if USE_ITT_BUILD && USE_ITT_NOTIFY</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="comment">// Barrier imbalance - save arrive time to the thread</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">if</span>(__kmp_forkjoin_frames_mode == 3 || __kmp_forkjoin_frames_mode == 2) {</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  this_thr->th.th_bar_arrive_time = this_thr->th.th_bar_min_time = __itt_get_timestamp();</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  }</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="comment">// We now perform a linear reduction to signal that all of the threads have arrived.</span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">if</span> (!KMP_MASTER_TID(tid)) {</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_linear_barrier_gather: T#%d(%d:%d) releasing T#%d(%d:%d)"</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="stringliteral">"arrived(%p): %llu => %llu\n"</span>, gtid, team->t.t_id, tid,</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  __kmp_gtid_from_tid(0, team), team->t.t_id, 0, &thr_bar->b_arrived,</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  thr_bar->b_arrived, thr_bar->b_arrived + KMP_BARRIER_STATE_BUMP));</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="comment">// Mark arrival to master thread</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="comment">/* After performing this write, a worker thread may not assume that the team is valid</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment"> any more - it could be deallocated by the master thread at any time. */</span></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  kmp_flag_64 flag(&thr_bar->b_arrived, other_threads[0]);</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  flag.release();</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keyword">register</span> kmp_balign_team_t *team_bar = &team->t.t_bar[bt];</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">register</span> <span class="keywordtype">int</span> nproc = this_thr->th.th_team_nproc;</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">register</span> <span class="keywordtype">int</span> i;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="comment">// Don't have to worry about sleep bit here or atomic since team setting</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keyword">register</span> kmp_uint64 new_state = team_bar->b_arrived + KMP_BARRIER_STATE_BUMP;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="comment">// Collect all the worker team member threads.</span></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">for</span> (i=1; i<nproc; ++i) {</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor">#if KMP_CACHE_MANAGE</span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="comment">// Prefetch next thread's arrived count</span></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">if</span> (i+1 < nproc)</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  KMP_CACHE_PREFETCH(&other_threads[i+1]->th.th_bar[bt].bb.b_arrived);</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="preprocessor">#endif </span><span class="comment">/* KMP_CACHE_MANAGE */</span><span class="preprocessor"></span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_linear_barrier_gather: T#%d(%d:%d) wait T#%d(%d:%d) "</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="stringliteral">"arrived(%p) == %llu\n"</span>, gtid, team->t.t_id, tid,</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  __kmp_gtid_from_tid(i, team), team->t.t_id, i,</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  &other_threads[i]->th.th_bar[bt].bb.b_arrived, new_state));</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="comment">// Wait for worker thread to arrive</span></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  kmp_flag_64 flag(&other_threads[i]->th.th_bar[bt].bb.b_arrived, new_state);</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  flag.wait(this_thr, FALSE</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="preprocessor">#if USE_ITT_BUILD && USE_ITT_NOTIFY</span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="comment">// Barrier imbalance - write min of the thread time and the other thread time to the thread.</span></div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">if</span> (__kmp_forkjoin_frames_mode == 2) {</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  this_thr->th.th_bar_min_time = KMP_MIN(this_thr->th.th_bar_min_time,</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  other_threads[i]->th.th_bar_min_time);</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  }</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">if</span> (reduce) {</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  KA_TRACE(100, (<span class="stringliteral">"__kmp_linear_barrier_gather: T#%d(%d:%d) += T#%d(%d:%d)\n"</span>, gtid,</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  team->t.t_id, tid, __kmp_gtid_from_tid(i, team), team->t.t_id, i));</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  (*reduce)(this_thr->th.th_local.reduce_data,</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  other_threads[i]->th.th_local.reduce_data);</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  }</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  }</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="comment">// Don't have to worry about sleep bit here or atomic since team setting</span></div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  team_bar->b_arrived = new_state;</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_linear_barrier_gather: T#%d(%d:%d) set team %d arrived(%p) = %llu\n"</span>,</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  gtid, team->t.t_id, tid, team->t.t_id, &team_bar->b_arrived, new_state));</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  }</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_linear_barrier_gather: T#%d(%d:%d) exit for barrier type %d\n"</span>,</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  gtid, team->t.t_id, tid, bt));</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> }</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> __kmp_linear_barrier_release(<span class="keyword">enum</span> barrier_type bt, kmp_info_t *this_thr, <span class="keywordtype">int</span> gtid, <span class="keywordtype">int</span> tid,</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordtype">int</span> propagate_icvs</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  USE_ITT_BUILD_ARG(<span class="keywordtype">void</span> *itt_sync_obj) )</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> {</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  KMP_TIME_DEVELOPER_BLOCK(KMP_linear_release);</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keyword">register</span> kmp_bstate_t *thr_bar = &this_thr->th.th_bar[bt].bb;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keyword">register</span> kmp_team_t *team;</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">if</span> (KMP_MASTER_TID(tid)) {</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keyword">register</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i;</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keyword">register</span> kmp_uint32 nproc = this_thr->th.th_team_nproc;</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keyword">register</span> kmp_info_t **other_threads;</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  team = __kmp_threads[gtid]->th.th_team;</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  KMP_DEBUG_ASSERT(team != NULL);</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  other_threads = team->t.t_threads;</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_linear_barrier_release: T#%d(%d:%d) master enter for barrier type %d\n"</span>,</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  gtid, team->t.t_id, tid, bt));</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordflow">if</span> (nproc > 1) {</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="preprocessor">#if KMP_BARRIER_ICV_PUSH</span></div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  {</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  KMP_TIME_DEVELOPER_BLOCK(USER_icv_copy);</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">if</span> (propagate_icvs) {</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  ngo_load(&team->t.t_implicit_task_taskdata[0].td_icvs);</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">for</span> (i=1; i<nproc; ++i) {</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  __kmp_init_implicit_task(team->t.t_ident, team->t.t_threads[i], team, i, FALSE);</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  ngo_store_icvs(&team->t.t_implicit_task_taskdata[i].td_icvs,</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  &team->t.t_implicit_task_taskdata[0].td_icvs);</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  }</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  ngo_sync();</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  }</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  }</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="preprocessor">#endif // KMP_BARRIER_ICV_PUSH</span></div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="comment">// Now, release all of the worker threads</span></div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordflow">for</span> (i=1; i<nproc; ++i) {</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="preprocessor">#if KMP_CACHE_MANAGE</span></div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="comment">// Prefetch next thread's go flag</span></div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">if</span> (i+1 < nproc)</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  KMP_CACHE_PREFETCH(&other_threads[i+1]->th.th_bar[bt].bb.b_go);</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="preprocessor">#endif </span><span class="comment">/* KMP_CACHE_MANAGE */</span><span class="preprocessor"></span></div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_linear_barrier_release: T#%d(%d:%d) releasing T#%d(%d:%d) "</span></div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="stringliteral">"go(%p): %u => %u\n"</span>, gtid, team->t.t_id, tid,</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  other_threads[i]->th.th_info.ds.ds_gtid, team->t.t_id, i,</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  &other_threads[i]->th.th_bar[bt].bb.b_go,</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  other_threads[i]->th.th_bar[bt].bb.b_go,</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  other_threads[i]->th.th_bar[bt].bb.b_go + KMP_BARRIER_STATE_BUMP));</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  kmp_flag_64 flag(&other_threads[i]->th.th_bar[bt].bb.b_go, other_threads[i]);</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  flag.release();</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  }</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  }</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  } <span class="keywordflow">else</span> { <span class="comment">// Wait for the MASTER thread to release us</span></div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_linear_barrier_release: T#%d wait go(%p) == %u\n"</span>,</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  gtid, &thr_bar->b_go, KMP_BARRIER_STATE_BUMP));</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  kmp_flag_64 flag(&thr_bar->b_go, KMP_BARRIER_STATE_BUMP);</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  flag.wait(this_thr, TRUE</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="preprocessor">#if USE_ITT_BUILD && USE_ITT_NOTIFY</span></div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keywordflow">if</span> ((__itt_sync_create_ptr && itt_sync_obj == NULL) || KMP_ITT_DEBUG) {</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="comment">// In a fork barrier; cannot get the object reliably (or ITTNOTIFY is disabled)</span></div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  itt_sync_obj = __kmp_itt_barrier_object(gtid, bs_forkjoin_barrier, 0, -1);</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="comment">// Cancel wait on previous parallel region...</span></div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  __kmp_itt_task_starting(itt_sync_obj);</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">if</span> (bt == bs_forkjoin_barrier && TCR_4(__kmp_global.g.g_done))</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> </div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  itt_sync_obj = __kmp_itt_barrier_object(gtid, bs_forkjoin_barrier);</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">if</span> (itt_sync_obj != NULL)</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="comment">// Call prepare as early as possible for "new" barrier</span></div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  __kmp_itt_task_finished(itt_sync_obj);</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  } <span class="keywordflow">else</span></div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="preprocessor">#endif </span><span class="comment">/* USE_ITT_BUILD && USE_ITT_NOTIFY */</span><span class="preprocessor"></span></div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="comment">// Early exit for reaping threads releasing forkjoin barrier</span></div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">if</span> ( bt == bs_forkjoin_barrier && TCR_4(__kmp_global.g.g_done) )</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="comment">// The worker thread may now assume that the team is valid.</span></div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="preprocessor">#ifdef KMP_DEBUG</span></div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  tid = __kmp_tid_from_gtid(gtid);</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  team = __kmp_threads[gtid]->th.th_team;</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  KMP_DEBUG_ASSERT(team != NULL);</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  TCW_4(thr_bar->b_go, KMP_INIT_BARRIER_STATE);</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_linear_barrier_release: T#%d(%d:%d) set go(%p) = %u\n"</span>,</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  gtid, team->t.t_id, tid, &thr_bar->b_go, KMP_INIT_BARRIER_STATE));</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  KMP_MB(); <span class="comment">// Flush all pending memory write invalidates.</span></div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  }</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_linear_barrier_release: T#%d(%d:%d) exit for barrier type %d\n"</span>,</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  gtid, team->t.t_id, tid, bt));</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span> }</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="comment">// Tree barrier</span></div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> __kmp_tree_barrier_gather(<span class="keyword">enum</span> barrier_type bt, kmp_info_t *this_thr, <span class="keywordtype">int</span> gtid, <span class="keywordtype">int</span> tid,</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordtype">void</span> (*reduce)(<span class="keywordtype">void</span> *, <span class="keywordtype">void</span> *)</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  USE_ITT_BUILD_ARG(<span class="keywordtype">void</span> *itt_sync_obj) )</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span> {</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  KMP_TIME_DEVELOPER_BLOCK(KMP_tree_gather);</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keyword">register</span> kmp_team_t *team = this_thr->th.th_team;</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keyword">register</span> kmp_bstate_t *thr_bar = &this_thr->th.th_bar[bt].bb;</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keyword">register</span> kmp_info_t **other_threads = team->t.t_threads;</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keyword">register</span> kmp_uint32 nproc = this_thr->th.th_team_nproc;</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="keyword">register</span> kmp_uint32 branch_bits = __kmp_barrier_gather_branch_bits[bt];</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keyword">register</span> kmp_uint32 branch_factor = 1 << branch_bits;</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keyword">register</span> kmp_uint32 child;</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keyword">register</span> kmp_uint32 child_tid;</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keyword">register</span> kmp_uint64 new_state;</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> </div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_tree_barrier_gather: T#%d(%d:%d) enter for barrier type %d\n"</span>,</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  gtid, team->t.t_id, tid, bt));</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  KMP_DEBUG_ASSERT(this_thr == other_threads[this_thr->th.th_info.ds.ds_tid]);</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span> </div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span> <span class="preprocessor">#if USE_ITT_BUILD && USE_ITT_NOTIFY</span></div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="comment">// Barrier imbalance - save arrive time to the thread</span></div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">if</span>(__kmp_forkjoin_frames_mode == 3 || __kmp_forkjoin_frames_mode == 2) {</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  this_thr->th.th_bar_arrive_time = this_thr->th.th_bar_min_time = __itt_get_timestamp();</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  }</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="comment">// Perform tree gather to wait until all threads have arrived; reduce any required data as we go</span></div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  child_tid = (tid << branch_bits) + 1;</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordflow">if</span> (child_tid < nproc) {</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="comment">// Parent threads wait for all their children to arrive</span></div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  new_state = team->t.t_bar[bt].b_arrived + KMP_BARRIER_STATE_BUMP;</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  child = 1;</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keywordflow">do</span> {</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keyword">register</span> kmp_info_t *child_thr = other_threads[child_tid];</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keyword">register</span> kmp_bstate_t *child_bar = &child_thr->th.th_bar[bt].bb;</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span> <span class="preprocessor">#if KMP_CACHE_MANAGE</span></div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="comment">// Prefetch next thread's arrived count</span></div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordflow">if</span> (child+1 <= branch_factor && child_tid+1 < nproc)</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  KMP_CACHE_PREFETCH(&other_threads[child_tid+1]->th.th_bar[bt].bb.b_arrived);</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span> <span class="preprocessor">#endif </span><span class="comment">/* KMP_CACHE_MANAGE */</span><span class="preprocessor"></span></div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_tree_barrier_gather: T#%d(%d:%d) wait T#%d(%d:%u) "</span></div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="stringliteral">"arrived(%p) == %llu\n"</span>, gtid, team->t.t_id, tid,</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  __kmp_gtid_from_tid(child_tid, team), team->t.t_id, child_tid,</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  &child_bar->b_arrived, new_state));</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="comment">// Wait for child to arrive</span></div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  kmp_flag_64 flag(&child_bar->b_arrived, new_state);</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  flag.wait(this_thr, FALSE</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span> <span class="preprocessor">#if USE_ITT_BUILD && USE_ITT_NOTIFY</span></div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="comment">// Barrier imbalance - write min of the thread time and a child time to the thread.</span></div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="keywordflow">if</span> (__kmp_forkjoin_frames_mode == 2) {</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  this_thr->th.th_bar_min_time = KMP_MIN(this_thr->th.th_bar_min_time,</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  child_thr->th.th_bar_min_time);</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  }</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="keywordflow">if</span> (reduce) {</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  KA_TRACE(100, (<span class="stringliteral">"__kmp_tree_barrier_gather: T#%d(%d:%d) += T#%d(%d:%u)\n"</span>,</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  gtid, team->t.t_id, tid, __kmp_gtid_from_tid(child_tid, team),</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  team->t.t_id, child_tid));</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  (*reduce)(this_thr->th.th_local.reduce_data, child_thr->th.th_local.reduce_data);</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  }</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  child++;</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  child_tid++;</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  }</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="keywordflow">while</span> (child <= branch_factor && child_tid < nproc);</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  }</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span> </div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keywordflow">if</span> (!KMP_MASTER_TID(tid)) { <span class="comment">// Worker threads</span></div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="keyword">register</span> kmp_int32 parent_tid = (tid - 1) >> branch_bits;</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span> </div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_tree_barrier_gather: T#%d(%d:%d) releasing T#%d(%d:%d) "</span></div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="stringliteral">"arrived(%p): %llu => %llu\n"</span>, gtid, team->t.t_id, tid,</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  __kmp_gtid_from_tid(parent_tid, team), team->t.t_id, parent_tid,</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  &thr_bar->b_arrived, thr_bar->b_arrived,</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  thr_bar->b_arrived + KMP_BARRIER_STATE_BUMP));</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span> </div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="comment">// Mark arrival to parent thread</span></div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <span class="comment">/* After performing this write, a worker thread may not assume that the team is valid</span></div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span> <span class="comment"> any more - it could be deallocated by the master thread at any time. */</span></div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  kmp_flag_64 flag(&thr_bar->b_arrived, other_threads[parent_tid]);</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  flag.release();</div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="comment">// Need to update the team arrived pointer if we are the master thread</span></div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="keywordflow">if</span> (nproc > 1) <span class="comment">// New value was already computed above</span></div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  team->t.t_bar[bt].b_arrived = new_state;</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  team->t.t_bar[bt].b_arrived += KMP_BARRIER_STATE_BUMP;</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_tree_barrier_gather: T#%d(%d:%d) set team %d arrived(%p) = %llu\n"</span>,</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  gtid, team->t.t_id, tid, team->t.t_id,</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  &team->t.t_bar[bt].b_arrived, team->t.t_bar[bt].b_arrived));</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  }</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_tree_barrier_gather: T#%d(%d:%d) exit for barrier type %d\n"</span>,</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  gtid, team->t.t_id, tid, bt));</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span> }</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span> </div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span> __kmp_tree_barrier_release(<span class="keyword">enum</span> barrier_type bt, kmp_info_t *this_thr, <span class="keywordtype">int</span> gtid, <span class="keywordtype">int</span> tid,</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keywordtype">int</span> propagate_icvs</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  USE_ITT_BUILD_ARG(<span class="keywordtype">void</span> *itt_sync_obj) )</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span> {</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  KMP_TIME_DEVELOPER_BLOCK(KMP_tree_release);</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keyword">register</span> kmp_team_t *team;</div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keyword">register</span> kmp_bstate_t *thr_bar = &this_thr->th.th_bar[bt].bb;</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="keyword">register</span> kmp_uint32 nproc;</div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="keyword">register</span> kmp_uint32 branch_bits = __kmp_barrier_release_branch_bits[bt];</div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="keyword">register</span> kmp_uint32 branch_factor = 1 << branch_bits;</div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keyword">register</span> kmp_uint32 child;</div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="keyword">register</span> kmp_uint32 child_tid;</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span> </div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="comment">// Perform a tree release for all of the threads that have been gathered</span></div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="keywordflow">if</span> (!KMP_MASTER_TID(tid)) { <span class="comment">// Handle fork barrier workers who aren't part of a team yet</span></div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_tree_barrier_release: T#%d wait go(%p) == %u\n"</span>,</div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  gtid, &thr_bar->b_go, KMP_BARRIER_STATE_BUMP));</div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="comment">// Wait for parent thread to release us</span></div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  kmp_flag_64 flag(&thr_bar->b_go, KMP_BARRIER_STATE_BUMP);</div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  flag.wait(this_thr, TRUE</div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span> <span class="preprocessor">#if USE_ITT_BUILD && USE_ITT_NOTIFY</span></div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keywordflow">if</span> ((__itt_sync_create_ptr && itt_sync_obj == NULL) || KMP_ITT_DEBUG) {</div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="comment">// In fork barrier where we could not get the object reliably (or ITTNOTIFY is disabled)</span></div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  itt_sync_obj = __kmp_itt_barrier_object(gtid, bs_forkjoin_barrier, 0, -1);</div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="comment">// Cancel wait on previous parallel region...</span></div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  __kmp_itt_task_starting(itt_sync_obj);</div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span> </div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="keywordflow">if</span> (bt == bs_forkjoin_barrier && TCR_4(__kmp_global.g.g_done))</div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span> </div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  itt_sync_obj = __kmp_itt_barrier_object(gtid, bs_forkjoin_barrier);</div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="keywordflow">if</span> (itt_sync_obj != NULL)</div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="comment">// Call prepare as early as possible for "new" barrier</span></div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  __kmp_itt_task_finished(itt_sync_obj);</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  } <span class="keywordflow">else</span></div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span> <span class="preprocessor">#endif </span><span class="comment">/* USE_ITT_BUILD && USE_ITT_NOTIFY */</span><span class="preprocessor"></span></div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="comment">// Early exit for reaping threads releasing forkjoin barrier</span></div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <span class="keywordflow">if</span> (bt == bs_forkjoin_barrier && TCR_4(__kmp_global.g.g_done))</div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span> </div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="comment">// The worker thread may now assume that the team is valid.</span></div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  team = __kmp_threads[gtid]->th.th_team;</div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  KMP_DEBUG_ASSERT(team != NULL);</div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  tid = __kmp_tid_from_gtid(gtid);</div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span> </div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  TCW_4(thr_bar->b_go, KMP_INIT_BARRIER_STATE);</div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_tree_barrier_release: T#%d(%d:%d) set go(%p) = %u\n"</span>,</div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  gtid, team->t.t_id, tid, &thr_bar->b_go, KMP_INIT_BARRIER_STATE));</div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  KMP_MB(); <span class="comment">// Flush all pending memory write invalidates.</span></div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  team = __kmp_threads[gtid]->th.th_team;</div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  KMP_DEBUG_ASSERT(team != NULL);</div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_tree_barrier_release: T#%d(%d:%d) master enter for barrier type %d\n"</span>,</div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  gtid, team->t.t_id, tid, bt));</div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  }</div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  nproc = this_thr->th.th_team_nproc;</div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  child_tid = (tid << branch_bits) + 1;</div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span> </div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <span class="keywordflow">if</span> (child_tid < nproc) {</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <span class="keyword">register</span> kmp_info_t **other_threads = team->t.t_threads;</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  child = 1;</div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  <span class="comment">// Parent threads release all their children</span></div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="keywordflow">do</span> {</div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="keyword">register</span> kmp_info_t *child_thr = other_threads[child_tid];</div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <span class="keyword">register</span> kmp_bstate_t *child_bar = &child_thr->th.th_bar[bt].bb;</div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span> <span class="preprocessor">#if KMP_CACHE_MANAGE</span></div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <span class="comment">// Prefetch next thread's go count</span></div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="keywordflow">if</span> (child+1 <= branch_factor && child_tid+1 < nproc)</div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  KMP_CACHE_PREFETCH(&other_threads[child_tid+1]->th.th_bar[bt].bb.b_go);</div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span> <span class="preprocessor">#endif </span><span class="comment">/* KMP_CACHE_MANAGE */</span><span class="preprocessor"></span></div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span> </div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span> <span class="preprocessor">#if KMP_BARRIER_ICV_PUSH</span></div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  {</div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  KMP_TIME_DEVELOPER_BLOCK(USER_icv_copy);</div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="keywordflow">if</span> (propagate_icvs) {</div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  __kmp_init_implicit_task(team->t.t_ident, team->t.t_threads[child_tid],</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  team, child_tid, FALSE);</div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  copy_icvs(&team->t.t_implicit_task_taskdata[child_tid].td_icvs,</div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  &team->t.t_implicit_task_taskdata[0].td_icvs);</div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  }</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  }</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span> <span class="preprocessor">#endif // KMP_BARRIER_ICV_PUSH</span></div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_tree_barrier_release: T#%d(%d:%d) releasing T#%d(%d:%u)"</span></div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="stringliteral">"go(%p): %u => %u\n"</span>, gtid, team->t.t_id, tid,</div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  __kmp_gtid_from_tid(child_tid, team), team->t.t_id,</div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  child_tid, &child_bar->b_go, child_bar->b_go,</div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  child_bar->b_go + KMP_BARRIER_STATE_BUMP));</div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  <span class="comment">// Release child from barrier</span></div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  kmp_flag_64 flag(&child_bar->b_go, child_thr);</div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  flag.release();</div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  child++;</div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  child_tid++;</div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  }</div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keywordflow">while</span> (child <= branch_factor && child_tid < nproc);</div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  }</div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_tree_barrier_release: T#%d(%d:%d) exit for barrier type %d\n"</span>,</div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  gtid, team->t.t_id, tid, bt));</div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span> }</div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span> </div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span> </div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span> <span class="comment">// Hyper Barrier</span></div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span> __kmp_hyper_barrier_gather(<span class="keyword">enum</span> barrier_type bt, kmp_info_t *this_thr, <span class="keywordtype">int</span> gtid, <span class="keywordtype">int</span> tid,</div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="keywordtype">void</span> (*reduce)(<span class="keywordtype">void</span> *, <span class="keywordtype">void</span> *)</div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  USE_ITT_BUILD_ARG(<span class="keywordtype">void</span> *itt_sync_obj) )</div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span> {</div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  KMP_TIME_DEVELOPER_BLOCK(KMP_hyper_gather);</div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <span class="keyword">register</span> kmp_team_t *team = this_thr->th.th_team;</div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  <span class="keyword">register</span> kmp_bstate_t *thr_bar = &this_thr->th.th_bar[bt].bb;</div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <span class="keyword">register</span> kmp_info_t **other_threads = team->t.t_threads;</div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="keyword">register</span> kmp_uint64 new_state = KMP_BARRIER_UNUSED_STATE;</div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <span class="keyword">register</span> kmp_uint32 num_threads = this_thr->th.th_team_nproc;</div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="keyword">register</span> kmp_uint32 branch_bits = __kmp_barrier_gather_branch_bits[bt];</div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="keyword">register</span> kmp_uint32 branch_factor = 1 << branch_bits;</div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="keyword">register</span> kmp_uint32 offset;</div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <span class="keyword">register</span> kmp_uint32 level;</div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span> </div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hyper_barrier_gather: T#%d(%d:%d) enter for barrier type %d\n"</span>,</div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  gtid, team->t.t_id, tid, bt));</div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span> </div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  KMP_DEBUG_ASSERT(this_thr == other_threads[this_thr->th.th_info.ds.ds_tid]);</div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span> </div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span> <span class="preprocessor">#if USE_ITT_BUILD && USE_ITT_NOTIFY</span></div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="comment">// Barrier imbalance - save arrive time to the thread</span></div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="keywordflow">if</span>(__kmp_forkjoin_frames_mode == 3 || __kmp_forkjoin_frames_mode == 2) {</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  this_thr->th.th_bar_arrive_time = this_thr->th.th_bar_min_time = __itt_get_timestamp();</div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  }</div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="comment">/* Perform a hypercube-embedded tree gather to wait until all of the threads have</span></div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span> <span class="comment"> arrived, and reduce any required data as we go. */</span></div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  kmp_flag_64 p_flag(&thr_bar->b_arrived);</div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keywordflow">for</span> (level=0, offset=1; offset<num_threads; level+=branch_bits, offset<<=branch_bits)</div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  {</div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <span class="keyword">register</span> kmp_uint32 child;</div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  <span class="keyword">register</span> kmp_uint32 child_tid;</div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span> </div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <span class="keywordflow">if</span> (((tid >> level) & (branch_factor - 1)) != 0) {</div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="keyword">register</span> kmp_int32 parent_tid = tid & ~((1 << (level + branch_bits)) -1);</div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span> </div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hyper_barrier_gather: T#%d(%d:%d) releasing T#%d(%d:%d) "</span></div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  <span class="stringliteral">"arrived(%p): %llu => %llu\n"</span>, gtid, team->t.t_id, tid,</div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  __kmp_gtid_from_tid(parent_tid, team), team->t.t_id, parent_tid,</div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  &thr_bar->b_arrived, thr_bar->b_arrived,</div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  thr_bar->b_arrived + KMP_BARRIER_STATE_BUMP));</div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  <span class="comment">// Mark arrival to parent thread</span></div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  <span class="comment">/* After performing this write (in the last iteration of the enclosing for loop),</span></div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span> <span class="comment"> a worker thread may not assume that the team is valid any more - it could be</span></div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span> <span class="comment"> deallocated by the master thread at any time. */</span></div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  p_flag.set_waiter(other_threads[parent_tid]);</div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  p_flag.release();</div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  }</div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span> </div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="comment">// Parent threads wait for children to arrive</span></div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  <span class="keywordflow">if</span> (new_state == KMP_BARRIER_UNUSED_STATE)</div><div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  new_state = team->t.t_bar[bt].b_arrived + KMP_BARRIER_STATE_BUMP;</div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  <span class="keywordflow">for</span> (child=1, child_tid=tid+(1 << level); child<branch_factor && child_tid<num_threads;</div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  child++, child_tid+=(1 << level))</div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  {</div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  <span class="keyword">register</span> kmp_info_t *child_thr = other_threads[child_tid];</div><div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  <span class="keyword">register</span> kmp_bstate_t *child_bar = &child_thr->th.th_bar[bt].bb;</div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span> <span class="preprocessor">#if KMP_CACHE_MANAGE</span></div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  <span class="keyword">register</span> kmp_uint32 next_child_tid = child_tid + (1 << level);</div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  <span class="comment">// Prefetch next thread's arrived count</span></div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  <span class="keywordflow">if</span> (child+1 < branch_factor && next_child_tid < num_threads)</div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  KMP_CACHE_PREFETCH(&other_threads[next_child_tid]->th.th_bar[bt].bb.b_arrived);</div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span> <span class="preprocessor">#endif </span><span class="comment">/* KMP_CACHE_MANAGE */</span><span class="preprocessor"></span></div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hyper_barrier_gather: T#%d(%d:%d) wait T#%d(%d:%u) "</span></div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  <span class="stringliteral">"arrived(%p) == %llu\n"</span>, gtid, team->t.t_id, tid,</div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  __kmp_gtid_from_tid(child_tid, team), team->t.t_id, child_tid,</div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  &child_bar->b_arrived, new_state));</div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  <span class="comment">// Wait for child to arrive</span></div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  kmp_flag_64 c_flag(&child_bar->b_arrived, new_state);</div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  c_flag.wait(this_thr, FALSE</div><div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span> <span class="preprocessor">#if USE_ITT_BUILD && USE_ITT_NOTIFY</span></div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  <span class="comment">// Barrier imbalance - write min of the thread time and a child time to the thread.</span></div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  <span class="keywordflow">if</span> (__kmp_forkjoin_frames_mode == 2) {</div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  this_thr->th.th_bar_min_time = KMP_MIN(this_thr->th.th_bar_min_time,</div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  child_thr->th.th_bar_min_time);</div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  }</div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  <span class="keywordflow">if</span> (reduce) {</div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  KA_TRACE(100, (<span class="stringliteral">"__kmp_hyper_barrier_gather: T#%d(%d:%d) += T#%d(%d:%u)\n"</span>,</div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  gtid, team->t.t_id, tid, __kmp_gtid_from_tid(child_tid, team),</div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  team->t.t_id, child_tid));</div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  (*reduce)(this_thr->th.th_local.reduce_data, child_thr->th.th_local.reduce_data);</div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  }</div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  }</div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  }</div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span> </div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  <span class="keywordflow">if</span> (KMP_MASTER_TID(tid)) {</div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  <span class="comment">// Need to update the team arrived pointer if we are the master thread</span></div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  <span class="keywordflow">if</span> (new_state == KMP_BARRIER_UNUSED_STATE)</div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  team->t.t_bar[bt].b_arrived += KMP_BARRIER_STATE_BUMP;</div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  team->t.t_bar[bt].b_arrived = new_state;</div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hyper_barrier_gather: T#%d(%d:%d) set team %d arrived(%p) = %llu\n"</span>,</div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  gtid, team->t.t_id, tid, team->t.t_id,</div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  &team->t.t_bar[bt].b_arrived, team->t.t_bar[bt].b_arrived));</div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  }</div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hyper_barrier_gather: T#%d(%d:%d) exit for barrier type %d\n"</span>,</div><div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  gtid, team->t.t_id, tid, bt));</div><div class="line"><a name="l00518"></a><span class="lineno"> 518</span> }</div><div class="line"><a name="l00519"></a><span class="lineno"> 519</span> </div><div class="line"><a name="l00520"></a><span class="lineno"> 520</span> <span class="comment">// The reverse versions seem to beat the forward versions overall</span></div><div class="line"><a name="l00521"></a><span class="lineno"> 521</span> <span class="preprocessor">#define KMP_REVERSE_HYPER_BAR</span></div><div class="line"><a name="l00522"></a><span class="lineno"> 522</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div><div class="line"><a name="l00523"></a><span class="lineno"> 523</span> __kmp_hyper_barrier_release(<span class="keyword">enum</span> barrier_type bt, kmp_info_t *this_thr, <span class="keywordtype">int</span> gtid, <span class="keywordtype">int</span> tid,</div><div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  <span class="keywordtype">int</span> propagate_icvs</div><div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  USE_ITT_BUILD_ARG(<span class="keywordtype">void</span> *itt_sync_obj) )</div><div class="line"><a name="l00526"></a><span class="lineno"> 526</span> {</div><div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  KMP_TIME_DEVELOPER_BLOCK(KMP_hyper_release);</div><div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  <span class="keyword">register</span> kmp_team_t *team;</div><div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  <span class="keyword">register</span> kmp_bstate_t *thr_bar = & this_thr -> th.th_bar[ bt ].bb;</div><div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  <span class="keyword">register</span> kmp_info_t **other_threads;</div><div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  <span class="keyword">register</span> kmp_uint32 num_threads;</div><div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  <span class="keyword">register</span> kmp_uint32 branch_bits = __kmp_barrier_release_branch_bits[ bt ];</div><div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  <span class="keyword">register</span> kmp_uint32 branch_factor = 1 << branch_bits;</div><div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  <span class="keyword">register</span> kmp_uint32 child;</div><div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  <span class="keyword">register</span> kmp_uint32 child_tid;</div><div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  <span class="keyword">register</span> kmp_uint32 offset;</div><div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  <span class="keyword">register</span> kmp_uint32 level;</div><div class="line"><a name="l00538"></a><span class="lineno"> 538</span> </div><div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  <span class="comment">/* Perform a hypercube-embedded tree release for all of the threads that have been gathered.</span></div><div class="line"><a name="l00540"></a><span class="lineno"> 540</span> <span class="comment"> If KMP_REVERSE_HYPER_BAR is defined (default) the threads are released in the reverse</span></div><div class="line"><a name="l00541"></a><span class="lineno"> 541</span> <span class="comment"> order of the corresponding gather, otherwise threads are released in the same order. */</span></div><div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  <span class="keywordflow">if</span> (KMP_MASTER_TID(tid)) { <span class="comment">// master</span></div><div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  team = __kmp_threads[gtid]->th.th_team;</div><div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  KMP_DEBUG_ASSERT(team != NULL);</div><div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hyper_barrier_release: T#%d(%d:%d) master enter for barrier type %d\n"</span>,</div><div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  gtid, team->t.t_id, tid, bt));</div><div class="line"><a name="l00547"></a><span class="lineno"> 547</span> <span class="preprocessor">#if KMP_BARRIER_ICV_PUSH</span></div><div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  <span class="keywordflow">if</span> (propagate_icvs) { <span class="comment">// master already has ICVs in final destination; copy</span></div><div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  copy_icvs(&thr_bar->th_fixed_icvs, &team->t.t_implicit_task_taskdata[tid].td_icvs);</div><div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  }</div><div class="line"><a name="l00551"></a><span class="lineno"> 551</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  }</div><div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  <span class="keywordflow">else</span> { <span class="comment">// Handle fork barrier workers who aren't part of a team yet</span></div><div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hyper_barrier_release: T#%d wait go(%p) == %u\n"</span>,</div><div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  gtid, &thr_bar->b_go, KMP_BARRIER_STATE_BUMP));</div><div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  <span class="comment">// Wait for parent thread to release us</span></div><div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  kmp_flag_64 flag(&thr_bar->b_go, KMP_BARRIER_STATE_BUMP);</div><div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  flag.wait(this_thr, TRUE</div><div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l00560"></a><span class="lineno"> 560</span> <span class="preprocessor">#if USE_ITT_BUILD && USE_ITT_NOTIFY</span></div><div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  <span class="keywordflow">if</span> ((__itt_sync_create_ptr && itt_sync_obj == NULL) || KMP_ITT_DEBUG) {</div><div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  <span class="comment">// In fork barrier where we could not get the object reliably</span></div><div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  itt_sync_obj = __kmp_itt_barrier_object(gtid, bs_forkjoin_barrier, 0, -1);</div><div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  <span class="comment">// Cancel wait on previous parallel region...</span></div><div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  __kmp_itt_task_starting(itt_sync_obj);</div><div class="line"><a name="l00566"></a><span class="lineno"> 566</span> </div><div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  <span class="keywordflow">if</span> (bt == bs_forkjoin_barrier && TCR_4(__kmp_global.g.g_done))</div><div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00569"></a><span class="lineno"> 569</span> </div><div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  itt_sync_obj = __kmp_itt_barrier_object(gtid, bs_forkjoin_barrier);</div><div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  <span class="keywordflow">if</span> (itt_sync_obj != NULL)</div><div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  <span class="comment">// Call prepare as early as possible for "new" barrier</span></div><div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  __kmp_itt_task_finished(itt_sync_obj);</div><div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  } <span class="keywordflow">else</span></div><div class="line"><a name="l00575"></a><span class="lineno"> 575</span> <span class="preprocessor">#endif </span><span class="comment">/* USE_ITT_BUILD && USE_ITT_NOTIFY */</span><span class="preprocessor"></span></div><div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  <span class="comment">// Early exit for reaping threads releasing forkjoin barrier</span></div><div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  <span class="keywordflow">if</span> (bt == bs_forkjoin_barrier && TCR_4(__kmp_global.g.g_done))</div><div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00579"></a><span class="lineno"> 579</span> </div><div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  <span class="comment">// The worker thread may now assume that the team is valid.</span></div><div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  team = __kmp_threads[gtid]->th.th_team;</div><div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  KMP_DEBUG_ASSERT(team != NULL);</div><div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  tid = __kmp_tid_from_gtid(gtid);</div><div class="line"><a name="l00584"></a><span class="lineno"> 584</span> </div><div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  TCW_4(thr_bar->b_go, KMP_INIT_BARRIER_STATE);</div><div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hyper_barrier_release: T#%d(%d:%d) set go(%p) = %u\n"</span>,</div><div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  gtid, team->t.t_id, tid, &thr_bar->b_go, KMP_INIT_BARRIER_STATE));</div><div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  KMP_MB(); <span class="comment">// Flush all pending memory write invalidates.</span></div><div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  }</div><div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  num_threads = this_thr->th.th_team_nproc;</div><div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  other_threads = team->t.t_threads;</div><div class="line"><a name="l00592"></a><span class="lineno"> 592</span> </div><div class="line"><a name="l00593"></a><span class="lineno"> 593</span> <span class="preprocessor">#ifdef KMP_REVERSE_HYPER_BAR</span></div><div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  <span class="comment">// Count up to correct level for parent</span></div><div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  <span class="keywordflow">for</span> (level=0, offset=1; offset<num_threads && (((tid>>level) & (branch_factor-1)) == 0);</div><div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  level+=branch_bits, offset<<=branch_bits);</div><div class="line"><a name="l00597"></a><span class="lineno"> 597</span> </div><div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  <span class="comment">// Now go down from there</span></div><div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  <span class="keywordflow">for</span> (level-=branch_bits, offset>>=branch_bits; offset != 0;</div><div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  level-=branch_bits, offset>>=branch_bits)</div><div class="line"><a name="l00601"></a><span class="lineno"> 601</span> #<span class="keywordflow">else</span></div><div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  <span class="comment">// Go down the tree, level by level</span></div><div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  <span class="keywordflow">for</span> (level=0, offset=1; offset<num_threads; level+=branch_bits, offset<<=branch_bits)</div><div class="line"><a name="l00604"></a><span class="lineno"> 604</span> #endif <span class="comment">// KMP_REVERSE_HYPER_BAR</span></div><div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  {</div><div class="line"><a name="l00606"></a><span class="lineno"> 606</span> <span class="preprocessor">#ifdef KMP_REVERSE_HYPER_BAR</span></div><div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  <span class="comment">/* Now go in reverse order through the children, highest to lowest.</span></div><div class="line"><a name="l00608"></a><span class="lineno"> 608</span> <span class="comment"> Initial setting of child is conservative here. */</span></div><div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  child = num_threads >> ((level==0)?level:level-1);</div><div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  <span class="keywordflow">for</span> (child=(child<branch_factor-1) ? child : branch_factor-1, child_tid=tid+(child<<level);</div><div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  child>=1; child--, child_tid-=(1<<level))</div><div class="line"><a name="l00612"></a><span class="lineno"> 612</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  <span class="keywordflow">if</span> (((tid >> level) & (branch_factor - 1)) != 0)</div><div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  <span class="comment">// No need to go lower than this, since this is the level parent would be notified</span></div><div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  <span class="comment">// Iterate through children on this level of the tree</span></div><div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  <span class="keywordflow">for</span> (child=1, child_tid=tid+(1<<level); child<branch_factor && child_tid<num_threads;</div><div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  child++, child_tid+=(1<<level))</div><div class="line"><a name="l00619"></a><span class="lineno"> 619</span> <span class="preprocessor">#endif // KMP_REVERSE_HYPER_BAR</span></div><div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  {</div><div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  <span class="keywordflow">if</span> (child_tid >= num_threads) <span class="keywordflow">continue</span>; <span class="comment">// Child doesn't exist so keep going</span></div><div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  <span class="keyword">register</span> kmp_info_t *child_thr = other_threads[child_tid];</div><div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  <span class="keyword">register</span> kmp_bstate_t *child_bar = &child_thr->th.th_bar[bt].bb;</div><div class="line"><a name="l00625"></a><span class="lineno"> 625</span> <span class="preprocessor">#if KMP_CACHE_MANAGE</span></div><div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  <span class="keyword">register</span> kmp_uint32 next_child_tid = child_tid - (1 << level);</div><div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  <span class="comment">// Prefetch next thread's go count</span></div><div class="line"><a name="l00628"></a><span class="lineno"> 628</span> <span class="preprocessor"># ifdef KMP_REVERSE_HYPER_BAR</span></div><div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  <span class="keywordflow">if</span> (child-1 >= 1 && next_child_tid < num_threads)</div><div class="line"><a name="l00630"></a><span class="lineno"> 630</span> <span class="preprocessor"># else</span></div><div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  <span class="keywordflow">if</span> (child+1 < branch_factor && next_child_tid < num_threads)</div><div class="line"><a name="l00632"></a><span class="lineno"> 632</span> <span class="preprocessor"># endif // KMP_REVERSE_HYPER_BAR</span></div><div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  KMP_CACHE_PREFETCH(&other_threads[next_child_tid]->th.th_bar[bt].bb.b_go);</div><div class="line"><a name="l00634"></a><span class="lineno"> 634</span> <span class="preprocessor">#endif </span><span class="comment">/* KMP_CACHE_MANAGE */</span><span class="preprocessor"></span></div><div class="line"><a name="l00635"></a><span class="lineno"> 635</span> </div><div class="line"><a name="l00636"></a><span class="lineno"> 636</span> <span class="preprocessor">#if KMP_BARRIER_ICV_PUSH</span></div><div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  <span class="keywordflow">if</span> (propagate_icvs) <span class="comment">// push my fixed ICVs to my child</span></div><div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  copy_icvs(&child_bar->th_fixed_icvs, &thr_bar->th_fixed_icvs);</div><div class="line"><a name="l00639"></a><span class="lineno"> 639</span> <span class="preprocessor">#endif // KMP_BARRIER_ICV_PUSH</span></div><div class="line"><a name="l00640"></a><span class="lineno"> 640</span> </div><div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hyper_barrier_release: T#%d(%d:%d) releasing T#%d(%d:%u)"</span></div><div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  <span class="stringliteral">"go(%p): %u => %u\n"</span>, gtid, team->t.t_id, tid,</div><div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  __kmp_gtid_from_tid(child_tid, team), team->t.t_id,</div><div class="line"><a name="l00644"></a><span class="lineno"> 644</span>  child_tid, &child_bar->b_go, child_bar->b_go,</div><div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  child_bar->b_go + KMP_BARRIER_STATE_BUMP));</div><div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  <span class="comment">// Release child from barrier</span></div><div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  kmp_flag_64 flag(&child_bar->b_go, child_thr);</div><div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  flag.release();</div><div class="line"><a name="l00649"></a><span class="lineno"> 649</span>  }</div><div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  }</div><div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  }</div><div class="line"><a name="l00652"></a><span class="lineno"> 652</span> <span class="preprocessor">#if KMP_BARRIER_ICV_PUSH</span></div><div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  <span class="keywordflow">if</span> (propagate_icvs && !KMP_MASTER_TID(tid)) { <span class="comment">// copy ICVs locally to final dest</span></div><div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  __kmp_init_implicit_task(team->t.t_ident, team->t.t_threads[tid], team, tid, FALSE);</div><div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  copy_icvs(&team->t.t_implicit_task_taskdata[tid].td_icvs, &thr_bar->th_fixed_icvs);</div><div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  }</div><div class="line"><a name="l00657"></a><span class="lineno"> 657</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hyper_barrier_release: T#%d(%d:%d) exit for barrier type %d\n"</span>,</div><div class="line"><a name="l00659"></a><span class="lineno"> 659</span>  gtid, team->t.t_id, tid, bt));</div><div class="line"><a name="l00660"></a><span class="lineno"> 660</span> }</div><div class="line"><a name="l00661"></a><span class="lineno"> 661</span> </div><div class="line"><a name="l00662"></a><span class="lineno"> 662</span> <span class="comment">// Hierarchical Barrier</span></div><div class="line"><a name="l00663"></a><span class="lineno"> 663</span> </div><div class="line"><a name="l00664"></a><span class="lineno"> 664</span> <span class="comment">// Initialize thread barrier data</span></div><div class="line"><a name="l00665"></a><span class="lineno"> 665</span> <span class="comment">/* Initializes/re-initializes the hierarchical barrier data stored on a thread. Performs the</span></div><div class="line"><a name="l00666"></a><span class="lineno"> 666</span> <span class="comment"> minimum amount of initialization required based on how the team has changed. Returns true if</span></div><div class="line"><a name="l00667"></a><span class="lineno"> 667</span> <span class="comment"> leaf children will require both on-core and traditional wake-up mechanisms. For example, if the</span></div><div class="line"><a name="l00668"></a><span class="lineno"> 668</span> <span class="comment"> team size increases, threads already in the team will respond to on-core wakeup on their parent</span></div><div class="line"><a name="l00669"></a><span class="lineno"> 669</span> <span class="comment"> thread, but threads newly added to the team will only be listening on the their local b_go. */</span></div><div class="line"><a name="l00670"></a><span class="lineno"> 670</span> <span class="keyword">static</span> <span class="keywordtype">bool</span></div><div class="line"><a name="l00671"></a><span class="lineno"> 671</span> __kmp_init_hierarchical_barrier_thread(<span class="keyword">enum</span> barrier_type bt, kmp_bstate_t *thr_bar, kmp_uint32 nproc,</div><div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  <span class="keywordtype">int</span> gtid, <span class="keywordtype">int</span> tid, kmp_team_t *team)</div><div class="line"><a name="l00673"></a><span class="lineno"> 673</span> {</div><div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  <span class="comment">// Checks to determine if (re-)initialization is needed</span></div><div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  <span class="keywordtype">bool</span> uninitialized = thr_bar->team == NULL;</div><div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  <span class="keywordtype">bool</span> team_changed = team != thr_bar->team;</div><div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  <span class="keywordtype">bool</span> team_sz_changed = nproc != thr_bar->nproc;</div><div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  <span class="keywordtype">bool</span> tid_changed = tid != thr_bar->old_tid;</div><div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  <span class="keywordtype">bool</span> retval = <span class="keyword">false</span>;</div><div class="line"><a name="l00680"></a><span class="lineno"> 680</span> </div><div class="line"><a name="l00681"></a><span class="lineno"> 681</span>  <span class="keywordflow">if</span> (uninitialized || team_sz_changed) {</div><div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  __kmp_get_hierarchy(nproc, thr_bar);</div><div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  }</div><div class="line"><a name="l00684"></a><span class="lineno"> 684</span> </div><div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  <span class="keywordflow">if</span> (uninitialized || team_sz_changed || tid_changed) {</div><div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  thr_bar->my_level = thr_bar->depth-1; <span class="comment">// default for master</span></div><div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  thr_bar->parent_tid = -1; <span class="comment">// default for master</span></div><div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  <span class="keywordflow">if</span> (!KMP_MASTER_TID(tid)) { <span class="comment">// if not master, find parent thread in hierarchy</span></div><div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  kmp_uint32 d=0;</div><div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  <span class="keywordflow">while</span> (d<thr_bar->depth) { <span class="comment">// find parent based on level of thread in hierarchy, and note level</span></div><div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  kmp_uint32 rem;</div><div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  <span class="keywordflow">if</span> (d == thr_bar->depth-2) { <span class="comment">// reached level right below the master</span></div><div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  thr_bar->parent_tid = 0;</div><div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  thr_bar->my_level = d;</div><div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  }</div><div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ((rem = tid%thr_bar->skip_per_level[d+1]) != 0) { <span class="comment">// TODO: can we make this op faster?</span></div><div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  <span class="comment">// thread is not a subtree root at next level, so this is max</span></div><div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  thr_bar->parent_tid = tid - rem;</div><div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  thr_bar->my_level = d;</div><div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  }</div><div class="line"><a name="l00703"></a><span class="lineno"> 703</span>  ++d;</div><div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  }</div><div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  }</div><div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  thr_bar->offset = 7-(tid-thr_bar->parent_tid-1);</div><div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  thr_bar->old_tid = tid;</div><div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  thr_bar->wait_flag = KMP_BARRIER_NOT_WAITING;</div><div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  thr_bar->team = team;</div><div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  thr_bar->parent_bar = &team->t.t_threads[thr_bar->parent_tid]->th.th_bar[bt].bb;</div><div class="line"><a name="l00711"></a><span class="lineno"> 711</span>  }</div><div class="line"><a name="l00712"></a><span class="lineno"> 712</span>  <span class="keywordflow">if</span> (uninitialized || team_changed || tid_changed) {</div><div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  thr_bar->team = team;</div><div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  thr_bar->parent_bar = &team->t.t_threads[thr_bar->parent_tid]->th.th_bar[bt].bb;</div><div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  retval = <span class="keyword">true</span>;</div><div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  }</div><div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  <span class="keywordflow">if</span> (uninitialized || team_sz_changed || tid_changed) {</div><div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  thr_bar->nproc = nproc;</div><div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  thr_bar->leaf_kids = thr_bar->base_leaf_kids;</div><div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  <span class="keywordflow">if</span> (thr_bar->my_level == 0) thr_bar->leaf_kids=0;</div><div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  <span class="keywordflow">if</span> (thr_bar->leaf_kids && (kmp_uint32)tid+thr_bar->leaf_kids+1 > nproc)</div><div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  thr_bar->leaf_kids = nproc - tid - 1;</div><div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  thr_bar->leaf_state = 0;</div><div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  for (<span class="keywordtype">int</span> i=0; i<thr_bar->leaf_kids; ++i) ((<span class="keywordtype">char</span> *)&(thr_bar->leaf_state))[7-i] = 1;</div><div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  }</div><div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  <span class="keywordflow">return</span> retval;</div><div class="line"><a name="l00727"></a><span class="lineno"> 727</span> }</div><div class="line"><a name="l00728"></a><span class="lineno"> 728</span> </div><div class="line"><a name="l00729"></a><span class="lineno"> 729</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div><div class="line"><a name="l00730"></a><span class="lineno"> 730</span> __kmp_hierarchical_barrier_gather(<span class="keyword">enum</span> barrier_type bt, kmp_info_t *this_thr,</div><div class="line"><a name="l00731"></a><span class="lineno"> 731</span>  <span class="keywordtype">int</span> gtid, <span class="keywordtype">int</span> tid, <span class="keywordtype">void</span> (*reduce) (<span class="keywordtype">void</span> *, <span class="keywordtype">void</span> *)</div><div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  USE_ITT_BUILD_ARG(<span class="keywordtype">void</span> * itt_sync_obj) )</div><div class="line"><a name="l00733"></a><span class="lineno"> 733</span> {</div><div class="line"><a name="l00734"></a><span class="lineno"> 734</span>  KMP_TIME_DEVELOPER_BLOCK(KMP_hier_gather);</div><div class="line"><a name="l00735"></a><span class="lineno"> 735</span>  <span class="keyword">register</span> kmp_team_t *team = this_thr->th.th_team;</div><div class="line"><a name="l00736"></a><span class="lineno"> 736</span>  <span class="keyword">register</span> kmp_bstate_t *thr_bar = & this_thr->th.th_bar[bt].bb;</div><div class="line"><a name="l00737"></a><span class="lineno"> 737</span>  <span class="keyword">register</span> kmp_uint32 nproc = this_thr->th.th_team_nproc;</div><div class="line"><a name="l00738"></a><span class="lineno"> 738</span>  <span class="keyword">register</span> kmp_info_t **other_threads = team->t.t_threads;</div><div class="line"><a name="l00739"></a><span class="lineno"> 739</span>  <span class="keyword">register</span> kmp_uint64 new_state;</div><div class="line"><a name="l00740"></a><span class="lineno"> 740</span> </div><div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  <span class="keywordtype">int</span> level = team->t.t_level;</div><div class="line"><a name="l00742"></a><span class="lineno"> 742</span> <span class="preprocessor">#if OMP_40_ENABLED</span></div><div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  <span class="keywordflow">if</span> (other_threads[0]->th.th_teams_microtask) <span class="comment">// are we inside the teams construct?</span></div><div class="line"><a name="l00744"></a><span class="lineno"> 744</span>  <span class="keywordflow">if</span> (this_thr->th.th_teams_size.nteams > 1)</div><div class="line"><a name="l00745"></a><span class="lineno"> 745</span>  ++level; <span class="comment">// level was not increased in teams construct for team_of_masters</span></div><div class="line"><a name="l00746"></a><span class="lineno"> 746</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  <span class="keywordflow">if</span> (level == 1) thr_bar->use_oncore_barrier = 1;</div><div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  <span class="keywordflow">else</span> thr_bar->use_oncore_barrier = 0; <span class="comment">// Do not use oncore barrier when nested</span></div><div class="line"><a name="l00749"></a><span class="lineno"> 749</span> </div><div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hierarchical_barrier_gather: T#%d(%d:%d) enter for barrier type %d\n"</span>,</div><div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  gtid, team->t.t_id, tid, bt));</div><div class="line"><a name="l00752"></a><span class="lineno"> 752</span>  KMP_DEBUG_ASSERT(this_thr == other_threads[this_thr->th.th_info.ds.ds_tid]);</div><div class="line"><a name="l00753"></a><span class="lineno"> 753</span> </div><div class="line"><a name="l00754"></a><span class="lineno"> 754</span> <span class="preprocessor">#if USE_ITT_BUILD && USE_ITT_NOTIFY</span></div><div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  <span class="comment">// Barrier imbalance - save arrive time to the thread</span></div><div class="line"><a name="l00756"></a><span class="lineno"> 756</span>  <span class="keywordflow">if</span>(__kmp_forkjoin_frames_mode == 3 || __kmp_forkjoin_frames_mode == 2) {</div><div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  this_thr->th.th_bar_arrive_time = __itt_get_timestamp();</div><div class="line"><a name="l00758"></a><span class="lineno"> 758</span>  }</div><div class="line"><a name="l00759"></a><span class="lineno"> 759</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00760"></a><span class="lineno"> 760</span> </div><div class="line"><a name="l00761"></a><span class="lineno"> 761</span>  (void)__kmp_init_hierarchical_barrier_thread(bt, thr_bar, nproc, gtid, tid, team);</div><div class="line"><a name="l00762"></a><span class="lineno"> 762</span> </div><div class="line"><a name="l00763"></a><span class="lineno"> 763</span>  <span class="keywordflow">if</span> (thr_bar->my_level) { <span class="comment">// not a leaf (my_level==0 means leaf)</span></div><div class="line"><a name="l00764"></a><span class="lineno"> 764</span>  <span class="keyword">register</span> kmp_int32 child_tid;</div><div class="line"><a name="l00765"></a><span class="lineno"> 765</span>  new_state = (kmp_uint64)team->t.t_bar[bt].b_arrived + KMP_BARRIER_STATE_BUMP;</div><div class="line"><a name="l00766"></a><span class="lineno"> 766</span>  if (__kmp_dflt_blocktime == KMP_MAX_BLOCKTIME && thr_bar->use_oncore_barrier) {</div><div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  <span class="keywordflow">if</span> (thr_bar->leaf_kids) { <span class="comment">// First, wait for leaf children to check-in on my b_arrived flag</span></div><div class="line"><a name="l00768"></a><span class="lineno"> 768</span>  kmp_uint64 leaf_state = KMP_MASTER_TID(tid) ? thr_bar->b_arrived | thr_bar->leaf_state : team->t.t_bar[bt].b_arrived | thr_bar->leaf_state;</div><div class="line"><a name="l00769"></a><span class="lineno"> 769</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hierarchical_barrier_gather: T#%d(%d:%d) waiting for leaf kids\n"</span>,</div><div class="line"><a name="l00770"></a><span class="lineno"> 770</span>  gtid, team->t.t_id, tid));</div><div class="line"><a name="l00771"></a><span class="lineno"> 771</span>  kmp_flag_64 flag(&thr_bar->b_arrived, leaf_state);</div><div class="line"><a name="l00772"></a><span class="lineno"> 772</span>  flag.wait(this_thr, FALSE</div><div class="line"><a name="l00773"></a><span class="lineno"> 773</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l00774"></a><span class="lineno"> 774</span>  <span class="keywordflow">if</span> (reduce) {</div><div class="line"><a name="l00775"></a><span class="lineno"> 775</span>  <span class="keywordflow">for</span> (child_tid=tid+1; child_tid<=tid+thr_bar->leaf_kids; ++child_tid) {</div><div class="line"><a name="l00776"></a><span class="lineno"> 776</span>  KA_TRACE(100, (<span class="stringliteral">"__kmp_hierarchical_barrier_gather: T#%d(%d:%d) += T#%d(%d:%d)\n"</span>,</div><div class="line"><a name="l00777"></a><span class="lineno"> 777</span>  gtid, team->t.t_id, tid, __kmp_gtid_from_tid(child_tid, team),</div><div class="line"><a name="l00778"></a><span class="lineno"> 778</span>  team->t.t_id, child_tid));</div><div class="line"><a name="l00779"></a><span class="lineno"> 779</span>  (*reduce)(this_thr->th.th_local.reduce_data, other_threads[child_tid]->th.th_local.reduce_data);</div><div class="line"><a name="l00780"></a><span class="lineno"> 780</span>  }</div><div class="line"><a name="l00781"></a><span class="lineno"> 781</span>  }</div><div class="line"><a name="l00782"></a><span class="lineno"> 782</span>  (void) KMP_TEST_THEN_AND64((<span class="keyword">volatile</span> kmp_int64 *)&thr_bar->b_arrived, ~(thr_bar->leaf_state)); <span class="comment">// clear leaf_state bits</span></div><div class="line"><a name="l00783"></a><span class="lineno"> 783</span>  }</div><div class="line"><a name="l00784"></a><span class="lineno"> 784</span>  <span class="comment">// Next, wait for higher level children on each child's b_arrived flag</span></div><div class="line"><a name="l00785"></a><span class="lineno"> 785</span>  <span class="keywordflow">for</span> (kmp_uint32 d=1; d<thr_bar->my_level; ++d) { <span class="comment">// gather lowest level threads first, but skip 0</span></div><div class="line"><a name="l00786"></a><span class="lineno"> 786</span>  kmp_uint32 last = tid+thr_bar->skip_per_level[d+1], skip = thr_bar->skip_per_level[d];</div><div class="line"><a name="l00787"></a><span class="lineno"> 787</span>  <span class="keywordflow">if</span> (last > nproc) last = nproc;</div><div class="line"><a name="l00788"></a><span class="lineno"> 788</span>  <span class="keywordflow">for</span> (child_tid=tid+skip; child_tid<(int)last; child_tid+=skip) {</div><div class="line"><a name="l00789"></a><span class="lineno"> 789</span>  <span class="keyword">register</span> kmp_info_t *child_thr = other_threads[child_tid];</div><div class="line"><a name="l00790"></a><span class="lineno"> 790</span>  <span class="keyword">register</span> kmp_bstate_t *child_bar = &child_thr->th.th_bar[bt].bb;</div><div class="line"><a name="l00791"></a><span class="lineno"> 791</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hierarchical_barrier_gather: T#%d(%d:%d) wait T#%d(%d:%d) "</span></div><div class="line"><a name="l00792"></a><span class="lineno"> 792</span>  <span class="stringliteral">"arrived(%p) == %llu\n"</span>,</div><div class="line"><a name="l00793"></a><span class="lineno"> 793</span>  gtid, team->t.t_id, tid, __kmp_gtid_from_tid(child_tid, team),</div><div class="line"><a name="l00794"></a><span class="lineno"> 794</span>  team->t.t_id, child_tid, &child_bar->b_arrived, new_state));</div><div class="line"><a name="l00795"></a><span class="lineno"> 795</span>  kmp_flag_64 flag(&child_bar->b_arrived, new_state);</div><div class="line"><a name="l00796"></a><span class="lineno"> 796</span>  flag.wait(this_thr, FALSE</div><div class="line"><a name="l00797"></a><span class="lineno"> 797</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  <span class="keywordflow">if</span> (reduce) {</div><div class="line"><a name="l00799"></a><span class="lineno"> 799</span>  KA_TRACE(100, (<span class="stringliteral">"__kmp_hierarchical_barrier_gather: T#%d(%d:%d) += T#%d(%d:%d)\n"</span>,</div><div class="line"><a name="l00800"></a><span class="lineno"> 800</span>  gtid, team->t.t_id, tid, __kmp_gtid_from_tid(child_tid, team),</div><div class="line"><a name="l00801"></a><span class="lineno"> 801</span>  team->t.t_id, child_tid));</div><div class="line"><a name="l00802"></a><span class="lineno"> 802</span>  (*reduce)(this_thr->th.th_local.reduce_data, child_thr->th.th_local.reduce_data);</div><div class="line"><a name="l00803"></a><span class="lineno"> 803</span>  }</div><div class="line"><a name="l00804"></a><span class="lineno"> 804</span>  }</div><div class="line"><a name="l00805"></a><span class="lineno"> 805</span>  }</div><div class="line"><a name="l00806"></a><span class="lineno"> 806</span>  }</div><div class="line"><a name="l00807"></a><span class="lineno"> 807</span>  <span class="keywordflow">else</span> { <span class="comment">// Blocktime is not infinite</span></div><div class="line"><a name="l00808"></a><span class="lineno"> 808</span>  <span class="keywordflow">for</span> (kmp_uint32 d=0; d<thr_bar->my_level; ++d) { <span class="comment">// Gather lowest level threads first</span></div><div class="line"><a name="l00809"></a><span class="lineno"> 809</span>  kmp_uint32 last = tid+thr_bar->skip_per_level[d+1], skip = thr_bar->skip_per_level[d];</div><div class="line"><a name="l00810"></a><span class="lineno"> 810</span>  <span class="keywordflow">if</span> (last > nproc) last = nproc;</div><div class="line"><a name="l00811"></a><span class="lineno"> 811</span>  <span class="keywordflow">for</span> (child_tid=tid+skip; child_tid<(int)last; child_tid+=skip) {</div><div class="line"><a name="l00812"></a><span class="lineno"> 812</span>  <span class="keyword">register</span> kmp_info_t *child_thr = other_threads[child_tid];</div><div class="line"><a name="l00813"></a><span class="lineno"> 813</span>  <span class="keyword">register</span> kmp_bstate_t *child_bar = &child_thr->th.th_bar[bt].bb;</div><div class="line"><a name="l00814"></a><span class="lineno"> 814</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hierarchical_barrier_gather: T#%d(%d:%d) wait T#%d(%d:%d) "</span></div><div class="line"><a name="l00815"></a><span class="lineno"> 815</span>  <span class="stringliteral">"arrived(%p) == %llu\n"</span>,</div><div class="line"><a name="l00816"></a><span class="lineno"> 816</span>  gtid, team->t.t_id, tid, __kmp_gtid_from_tid(child_tid, team),</div><div class="line"><a name="l00817"></a><span class="lineno"> 817</span>  team->t.t_id, child_tid, &child_bar->b_arrived, new_state));</div><div class="line"><a name="l00818"></a><span class="lineno"> 818</span>  kmp_flag_64 flag(&child_bar->b_arrived, new_state);</div><div class="line"><a name="l00819"></a><span class="lineno"> 819</span>  flag.wait(this_thr, FALSE</div><div class="line"><a name="l00820"></a><span class="lineno"> 820</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l00821"></a><span class="lineno"> 821</span>  <span class="keywordflow">if</span> (reduce) {</div><div class="line"><a name="l00822"></a><span class="lineno"> 822</span>  KA_TRACE(100, (<span class="stringliteral">"__kmp_hierarchical_barrier_gather: T#%d(%d:%d) += T#%d(%d:%d)\n"</span>,</div><div class="line"><a name="l00823"></a><span class="lineno"> 823</span>  gtid, team->t.t_id, tid, __kmp_gtid_from_tid(child_tid, team),</div><div class="line"><a name="l00824"></a><span class="lineno"> 824</span>  team->t.t_id, child_tid));</div><div class="line"><a name="l00825"></a><span class="lineno"> 825</span>  (*reduce)(this_thr->th.th_local.reduce_data, child_thr->th.th_local.reduce_data);</div><div class="line"><a name="l00826"></a><span class="lineno"> 826</span>  }</div><div class="line"><a name="l00827"></a><span class="lineno"> 827</span>  }</div><div class="line"><a name="l00828"></a><span class="lineno"> 828</span>  }</div><div class="line"><a name="l00829"></a><span class="lineno"> 829</span>  }</div><div class="line"><a name="l00830"></a><span class="lineno"> 830</span>  }</div><div class="line"><a name="l00831"></a><span class="lineno"> 831</span>  <span class="comment">// All subordinates are gathered; now release parent if not master thread</span></div><div class="line"><a name="l00832"></a><span class="lineno"> 832</span> </div><div class="line"><a name="l00833"></a><span class="lineno"> 833</span>  <span class="keywordflow">if</span> (!KMP_MASTER_TID(tid)) { <span class="comment">// worker threads release parent in hierarchy</span></div><div class="line"><a name="l00834"></a><span class="lineno"> 834</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hierarchical_barrier_gather: T#%d(%d:%d) releasing T#%d(%d:%d) "</span></div><div class="line"><a name="l00835"></a><span class="lineno"> 835</span>  <span class="stringliteral">"arrived(%p): %llu => %llu\n"</span>, gtid, team->t.t_id, tid,</div><div class="line"><a name="l00836"></a><span class="lineno"> 836</span>  __kmp_gtid_from_tid(thr_bar->parent_tid, team), team->t.t_id, thr_bar->parent_tid,</div><div class="line"><a name="l00837"></a><span class="lineno"> 837</span>  &thr_bar->b_arrived, thr_bar->b_arrived, thr_bar->b_arrived+KMP_BARRIER_STATE_BUMP));</div><div class="line"><a name="l00838"></a><span class="lineno"> 838</span>  <span class="comment">/* Mark arrival to parent: After performing this write, a worker thread may not assume that</span></div><div class="line"><a name="l00839"></a><span class="lineno"> 839</span> <span class="comment"> the team is valid any more - it could be deallocated by the master thread at any time. */</span></div><div class="line"><a name="l00840"></a><span class="lineno"> 840</span>  <span class="keywordflow">if</span> (thr_bar->my_level || __kmp_dflt_blocktime != KMP_MAX_BLOCKTIME</div><div class="line"><a name="l00841"></a><span class="lineno"> 841</span>  || !thr_bar->use_oncore_barrier) { <span class="comment">// Parent is waiting on my b_arrived flag; release it</span></div><div class="line"><a name="l00842"></a><span class="lineno"> 842</span>  kmp_flag_64 flag(&thr_bar->b_arrived, other_threads[thr_bar->parent_tid]);</div><div class="line"><a name="l00843"></a><span class="lineno"> 843</span>  flag.release();</div><div class="line"><a name="l00844"></a><span class="lineno"> 844</span>  }</div><div class="line"><a name="l00845"></a><span class="lineno"> 845</span>  <span class="keywordflow">else</span> { <span class="comment">// Leaf does special release on the "offset" bits of parent's b_arrived flag</span></div><div class="line"><a name="l00846"></a><span class="lineno"> 846</span>  thr_bar->b_arrived = team->t.t_bar[bt].b_arrived + KMP_BARRIER_STATE_BUMP;</div><div class="line"><a name="l00847"></a><span class="lineno"> 847</span>  kmp_flag_oncore flag(&thr_bar->parent_bar->b_arrived, thr_bar->offset);</div><div class="line"><a name="l00848"></a><span class="lineno"> 848</span>  flag.set_waiter(other_threads[thr_bar->parent_tid]);</div><div class="line"><a name="l00849"></a><span class="lineno"> 849</span>  flag.release();</div><div class="line"><a name="l00850"></a><span class="lineno"> 850</span>  }</div><div class="line"><a name="l00851"></a><span class="lineno"> 851</span>  } <span class="keywordflow">else</span> { <span class="comment">// Master thread needs to update the team's b_arrived value</span></div><div class="line"><a name="l00852"></a><span class="lineno"> 852</span>  team->t.t_bar[bt].b_arrived = new_state;</div><div class="line"><a name="l00853"></a><span class="lineno"> 853</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hierarchical_barrier_gather: T#%d(%d:%d) set team %d arrived(%p) = %llu\n"</span>,</div><div class="line"><a name="l00854"></a><span class="lineno"> 854</span>  gtid, team->t.t_id, tid, team->t.t_id, &team->t.t_bar[bt].b_arrived, team->t.t_bar[bt].b_arrived));</div><div class="line"><a name="l00855"></a><span class="lineno"> 855</span>  }</div><div class="line"><a name="l00856"></a><span class="lineno"> 856</span>  <span class="comment">// Is the team access below unsafe or just technically invalid?</span></div><div class="line"><a name="l00857"></a><span class="lineno"> 857</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hierarchical_barrier_gather: T#%d(%d:%d) exit for barrier type %d\n"</span>,</div><div class="line"><a name="l00858"></a><span class="lineno"> 858</span>  gtid, team->t.t_id, tid, bt));</div><div class="line"><a name="l00859"></a><span class="lineno"> 859</span> }</div><div class="line"><a name="l00860"></a><span class="lineno"> 860</span> </div><div class="line"><a name="l00861"></a><span class="lineno"> 861</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div><div class="line"><a name="l00862"></a><span class="lineno"> 862</span> __kmp_hierarchical_barrier_release(<span class="keyword">enum</span> barrier_type bt, kmp_info_t *this_thr, <span class="keywordtype">int</span> gtid, <span class="keywordtype">int</span> tid,</div><div class="line"><a name="l00863"></a><span class="lineno"> 863</span>  <span class="keywordtype">int</span> propagate_icvs</div><div class="line"><a name="l00864"></a><span class="lineno"> 864</span>  USE_ITT_BUILD_ARG(<span class="keywordtype">void</span> * itt_sync_obj) )</div><div class="line"><a name="l00865"></a><span class="lineno"> 865</span> {</div><div class="line"><a name="l00866"></a><span class="lineno"> 866</span>  KMP_TIME_DEVELOPER_BLOCK(KMP_hier_release);</div><div class="line"><a name="l00867"></a><span class="lineno"> 867</span>  <span class="keyword">register</span> kmp_team_t *team;</div><div class="line"><a name="l00868"></a><span class="lineno"> 868</span>  <span class="keyword">register</span> kmp_bstate_t *thr_bar = &this_thr->th.th_bar[bt].bb;</div><div class="line"><a name="l00869"></a><span class="lineno"> 869</span>  <span class="keyword">register</span> kmp_uint32 nproc;</div><div class="line"><a name="l00870"></a><span class="lineno"> 870</span>  <span class="keywordtype">bool</span> team_change = <span class="keyword">false</span>; <span class="comment">// indicates on-core barrier shouldn't be used</span></div><div class="line"><a name="l00871"></a><span class="lineno"> 871</span> </div><div class="line"><a name="l00872"></a><span class="lineno"> 872</span>  <span class="keywordflow">if</span> (KMP_MASTER_TID(tid)) {</div><div class="line"><a name="l00873"></a><span class="lineno"> 873</span>  team = __kmp_threads[gtid]->th.th_team;</div><div class="line"><a name="l00874"></a><span class="lineno"> 874</span>  KMP_DEBUG_ASSERT(team != NULL);</div><div class="line"><a name="l00875"></a><span class="lineno"> 875</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hierarchical_barrier_release: T#%d(%d:%d) master entered barrier type %d\n"</span>,</div><div class="line"><a name="l00876"></a><span class="lineno"> 876</span>  gtid, team->t.t_id, tid, bt));</div><div class="line"><a name="l00877"></a><span class="lineno"> 877</span>  }</div><div class="line"><a name="l00878"></a><span class="lineno"> 878</span>  <span class="keywordflow">else</span> { <span class="comment">// Worker threads</span></div><div class="line"><a name="l00879"></a><span class="lineno"> 879</span>  <span class="comment">// Wait for parent thread to release me</span></div><div class="line"><a name="l00880"></a><span class="lineno"> 880</span>  <span class="keywordflow">if</span> (!thr_bar->use_oncore_barrier || __kmp_dflt_blocktime != KMP_MAX_BLOCKTIME</div><div class="line"><a name="l00881"></a><span class="lineno"> 881</span>  || thr_bar->my_level != 0 || thr_bar->team == NULL) {</div><div class="line"><a name="l00882"></a><span class="lineno"> 882</span>  <span class="comment">// Use traditional method of waiting on my own b_go flag</span></div><div class="line"><a name="l00883"></a><span class="lineno"> 883</span>  thr_bar->wait_flag = KMP_BARRIER_OWN_FLAG;</div><div class="line"><a name="l00884"></a><span class="lineno"> 884</span>  kmp_flag_64 flag(&thr_bar->b_go, KMP_BARRIER_STATE_BUMP);</div><div class="line"><a name="l00885"></a><span class="lineno"> 885</span>  flag.wait(this_thr, TRUE</div><div class="line"><a name="l00886"></a><span class="lineno"> 886</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l00887"></a><span class="lineno"> 887</span>  TCW_8(thr_bar->b_go, KMP_INIT_BARRIER_STATE); <span class="comment">// Reset my b_go flag for next time</span></div><div class="line"><a name="l00888"></a><span class="lineno"> 888</span>  }</div><div class="line"><a name="l00889"></a><span class="lineno"> 889</span>  <span class="keywordflow">else</span> { <span class="comment">// Thread barrier data is initialized, this is a leaf, blocktime is infinite, not nested</span></div><div class="line"><a name="l00890"></a><span class="lineno"> 890</span>  <span class="comment">// Wait on my "offset" bits on parent's b_go flag</span></div><div class="line"><a name="l00891"></a><span class="lineno"> 891</span>  thr_bar->wait_flag = KMP_BARRIER_PARENT_FLAG;</div><div class="line"><a name="l00892"></a><span class="lineno"> 892</span>  kmp_flag_oncore flag(&thr_bar->parent_bar->b_go, KMP_BARRIER_STATE_BUMP, thr_bar->offset,</div><div class="line"><a name="l00893"></a><span class="lineno"> 893</span>  bt, this_thr</div><div class="line"><a name="l00894"></a><span class="lineno"> 894</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l00895"></a><span class="lineno"> 895</span>  flag.wait(this_thr, TRUE);</div><div class="line"><a name="l00896"></a><span class="lineno"> 896</span>  <span class="keywordflow">if</span> (thr_bar->wait_flag == KMP_BARRIER_SWITCHING) { <span class="comment">// Thread was switched to own b_go</span></div><div class="line"><a name="l00897"></a><span class="lineno"> 897</span>  TCW_8(thr_bar->b_go, KMP_INIT_BARRIER_STATE); <span class="comment">// Reset my b_go flag for next time</span></div><div class="line"><a name="l00898"></a><span class="lineno"> 898</span>  }</div><div class="line"><a name="l00899"></a><span class="lineno"> 899</span>  <span class="keywordflow">else</span> { <span class="comment">// Reset my bits on parent's b_go flag</span></div><div class="line"><a name="l00900"></a><span class="lineno"> 900</span>  ((<span class="keywordtype">char</span>*)&(thr_bar->parent_bar->b_go))[thr_bar->offset] = 0;</div><div class="line"><a name="l00901"></a><span class="lineno"> 901</span>  }</div><div class="line"><a name="l00902"></a><span class="lineno"> 902</span>  }</div><div class="line"><a name="l00903"></a><span class="lineno"> 903</span>  thr_bar->wait_flag = KMP_BARRIER_NOT_WAITING;</div><div class="line"><a name="l00904"></a><span class="lineno"> 904</span>  <span class="comment">// Early exit for reaping threads releasing forkjoin barrier</span></div><div class="line"><a name="l00905"></a><span class="lineno"> 905</span>  <span class="keywordflow">if</span> (bt == bs_forkjoin_barrier && TCR_4(__kmp_global.g.g_done))</div><div class="line"><a name="l00906"></a><span class="lineno"> 906</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00907"></a><span class="lineno"> 907</span>  <span class="comment">// The worker thread may now assume that the team is valid.</span></div><div class="line"><a name="l00908"></a><span class="lineno"> 908</span>  team = __kmp_threads[gtid]->th.th_team;</div><div class="line"><a name="l00909"></a><span class="lineno"> 909</span>  KMP_DEBUG_ASSERT(team != NULL);</div><div class="line"><a name="l00910"></a><span class="lineno"> 910</span>  tid = __kmp_tid_from_gtid(gtid);</div><div class="line"><a name="l00911"></a><span class="lineno"> 911</span> </div><div class="line"><a name="l00912"></a><span class="lineno"> 912</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hierarchical_barrier_release: T#%d(%d:%d) set go(%p) = %u\n"</span>,</div><div class="line"><a name="l00913"></a><span class="lineno"> 913</span>  gtid, team->t.t_id, tid, &thr_bar->b_go, KMP_INIT_BARRIER_STATE));</div><div class="line"><a name="l00914"></a><span class="lineno"> 914</span>  KMP_MB(); <span class="comment">// Flush all pending memory write invalidates.</span></div><div class="line"><a name="l00915"></a><span class="lineno"> 915</span>  }</div><div class="line"><a name="l00916"></a><span class="lineno"> 916</span> </div><div class="line"><a name="l00917"></a><span class="lineno"> 917</span>  nproc = this_thr->th.th_team_nproc;</div><div class="line"><a name="l00918"></a><span class="lineno"> 918</span>  <span class="keywordtype">int</span> level = team->t.t_level;</div><div class="line"><a name="l00919"></a><span class="lineno"> 919</span> <span class="preprocessor">#if OMP_40_ENABLED</span></div><div class="line"><a name="l00920"></a><span class="lineno"> 920</span>  <span class="keywordflow">if</span> (team->t.t_threads[0]->th.th_teams_microtask ) { <span class="comment">// are we inside the teams construct?</span></div><div class="line"><a name="l00921"></a><span class="lineno"> 921</span>  <span class="keywordflow">if</span> (team->t.t_pkfn != (microtask_t)__kmp_teams_master && this_thr->th.th_teams_level == level)</div><div class="line"><a name="l00922"></a><span class="lineno"> 922</span>  ++level; <span class="comment">// level was not increased in teams construct for team_of_workers</span></div><div class="line"><a name="l00923"></a><span class="lineno"> 923</span>  <span class="keywordflow">if</span>( this_thr->th.th_teams_size.nteams > 1 )</div><div class="line"><a name="l00924"></a><span class="lineno"> 924</span>  ++level; <span class="comment">// level was not increased in teams construct for team_of_masters</span></div><div class="line"><a name="l00925"></a><span class="lineno"> 925</span>  }</div><div class="line"><a name="l00926"></a><span class="lineno"> 926</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00927"></a><span class="lineno"> 927</span>  <span class="keywordflow">if</span> (level == 1) thr_bar->use_oncore_barrier = 1;</div><div class="line"><a name="l00928"></a><span class="lineno"> 928</span>  <span class="keywordflow">else</span> thr_bar->use_oncore_barrier = 0; <span class="comment">// Do not use oncore barrier when nested</span></div><div class="line"><a name="l00929"></a><span class="lineno"> 929</span> </div><div class="line"><a name="l00930"></a><span class="lineno"> 930</span>  <span class="comment">// If the team size has increased, we still communicate with old leaves via oncore barrier.</span></div><div class="line"><a name="l00931"></a><span class="lineno"> 931</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> <span class="keywordtype">int</span> old_leaf_kids = thr_bar->leaf_kids;</div><div class="line"><a name="l00932"></a><span class="lineno"> 932</span>  kmp_uint64 old_leaf_state = thr_bar->leaf_state;</div><div class="line"><a name="l00933"></a><span class="lineno"> 933</span>  team_change = __kmp_init_hierarchical_barrier_thread(bt, thr_bar, nproc, gtid, tid, team);</div><div class="line"><a name="l00934"></a><span class="lineno"> 934</span>  <span class="comment">// But if the entire team changes, we won't use oncore barrier at all</span></div><div class="line"><a name="l00935"></a><span class="lineno"> 935</span>  <span class="keywordflow">if</span> (team_change) old_leaf_kids = 0;</div><div class="line"><a name="l00936"></a><span class="lineno"> 936</span> </div><div class="line"><a name="l00937"></a><span class="lineno"> 937</span> <span class="preprocessor">#if KMP_BARRIER_ICV_PUSH</span></div><div class="line"><a name="l00938"></a><span class="lineno"> 938</span>  <span class="keywordflow">if</span> (propagate_icvs) {</div><div class="line"><a name="l00939"></a><span class="lineno"> 939</span>  __kmp_init_implicit_task(team->t.t_ident, team->t.t_threads[tid], team, tid, FALSE);</div><div class="line"><a name="l00940"></a><span class="lineno"> 940</span>  <span class="keywordflow">if</span> (KMP_MASTER_TID(tid)) { <span class="comment">// master already has copy in final destination; copy</span></div><div class="line"><a name="l00941"></a><span class="lineno"> 941</span>  copy_icvs(&thr_bar->th_fixed_icvs, &team->t.t_implicit_task_taskdata[tid].td_icvs);</div><div class="line"><a name="l00942"></a><span class="lineno"> 942</span>  }</div><div class="line"><a name="l00943"></a><span class="lineno"> 943</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (__kmp_dflt_blocktime == KMP_MAX_BLOCKTIME && thr_bar->use_oncore_barrier) { <span class="comment">// optimization for inf blocktime</span></div><div class="line"><a name="l00944"></a><span class="lineno"> 944</span>  <span class="keywordflow">if</span> (!thr_bar->my_level) <span class="comment">// I'm a leaf in the hierarchy (my_level==0)</span></div><div class="line"><a name="l00945"></a><span class="lineno"> 945</span>  <span class="comment">// leaves (on-core children) pull parent's fixed ICVs directly to local ICV store</span></div><div class="line"><a name="l00946"></a><span class="lineno"> 946</span>  copy_icvs(&team->t.t_implicit_task_taskdata[tid].td_icvs,</div><div class="line"><a name="l00947"></a><span class="lineno"> 947</span>  &thr_bar->parent_bar->th_fixed_icvs);</div><div class="line"><a name="l00948"></a><span class="lineno"> 948</span>  <span class="comment">// non-leaves will get ICVs piggybacked with b_go via NGO store</span></div><div class="line"><a name="l00949"></a><span class="lineno"> 949</span>  }</div><div class="line"><a name="l00950"></a><span class="lineno"> 950</span>  <span class="keywordflow">else</span> { <span class="comment">// blocktime is not infinite; pull ICVs from parent's fixed ICVs</span></div><div class="line"><a name="l00951"></a><span class="lineno"> 951</span>  <span class="keywordflow">if</span> (thr_bar->my_level) <span class="comment">// not a leaf; copy ICVs to my fixed ICVs child can access</span></div><div class="line"><a name="l00952"></a><span class="lineno"> 952</span>  copy_icvs(&thr_bar->th_fixed_icvs, &thr_bar->parent_bar->th_fixed_icvs);</div><div class="line"><a name="l00953"></a><span class="lineno"> 953</span>  <span class="keywordflow">else</span> <span class="comment">// leaves copy parent's fixed ICVs directly to local ICV store</span></div><div class="line"><a name="l00954"></a><span class="lineno"> 954</span>  copy_icvs(&team->t.t_implicit_task_taskdata[tid].td_icvs,</div><div class="line"><a name="l00955"></a><span class="lineno"> 955</span>  &thr_bar->parent_bar->th_fixed_icvs);</div><div class="line"><a name="l00956"></a><span class="lineno"> 956</span>  }</div><div class="line"><a name="l00957"></a><span class="lineno"> 957</span>  }</div><div class="line"><a name="l00958"></a><span class="lineno"> 958</span> <span class="preprocessor">#endif // KMP_BARRIER_ICV_PUSH</span></div><div class="line"><a name="l00959"></a><span class="lineno"> 959</span> </div><div class="line"><a name="l00960"></a><span class="lineno"> 960</span>  <span class="comment">// Now, release my children</span></div><div class="line"><a name="l00961"></a><span class="lineno"> 961</span>  <span class="keywordflow">if</span> (thr_bar->my_level) { <span class="comment">// not a leaf</span></div><div class="line"><a name="l00962"></a><span class="lineno"> 962</span>  <span class="keyword">register</span> kmp_int32 child_tid;</div><div class="line"><a name="l00963"></a><span class="lineno"> 963</span>  kmp_uint32 last;</div><div class="line"><a name="l00964"></a><span class="lineno"> 964</span>  <span class="keywordflow">if</span> (__kmp_dflt_blocktime == KMP_MAX_BLOCKTIME && thr_bar->use_oncore_barrier) {</div><div class="line"><a name="l00965"></a><span class="lineno"> 965</span>  <span class="keywordflow">if</span> (KMP_MASTER_TID(tid)) { <span class="comment">// do a flat release</span></div><div class="line"><a name="l00966"></a><span class="lineno"> 966</span>  <span class="comment">// Set local b_go to bump children via NGO store of the cache line containing IVCs and b_go.</span></div><div class="line"><a name="l00967"></a><span class="lineno"> 967</span>  thr_bar->b_go = KMP_BARRIER_STATE_BUMP;</div><div class="line"><a name="l00968"></a><span class="lineno"> 968</span>  <span class="comment">// Use ngo stores if available; b_go piggybacks in the last 8 bytes of the cache line</span></div><div class="line"><a name="l00969"></a><span class="lineno"> 969</span>  ngo_load(&thr_bar->th_fixed_icvs);</div><div class="line"><a name="l00970"></a><span class="lineno"> 970</span>  <span class="comment">// This loops over all the threads skipping only the leaf nodes in the hierarchy</span></div><div class="line"><a name="l00971"></a><span class="lineno"> 971</span>  <span class="keywordflow">for</span> (child_tid=thr_bar->skip_per_level[1]; child_tid<(<span class="keywordtype">int</span>)nproc; child_tid+=thr_bar->skip_per_level[1]) {</div><div class="line"><a name="l00972"></a><span class="lineno"> 972</span>  <span class="keyword">register</span> kmp_bstate_t *child_bar = &team->t.t_threads[child_tid]->th.th_bar[bt].bb;</div><div class="line"><a name="l00973"></a><span class="lineno"> 973</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hierarchical_barrier_release: T#%d(%d:%d) releasing T#%d(%d:%d)"</span></div><div class="line"><a name="l00974"></a><span class="lineno"> 974</span>  <span class="stringliteral">" go(%p): %u => %u\n"</span>,</div><div class="line"><a name="l00975"></a><span class="lineno"> 975</span>  gtid, team->t.t_id, tid, __kmp_gtid_from_tid(child_tid, team),</div><div class="line"><a name="l00976"></a><span class="lineno"> 976</span>  team->t.t_id, child_tid, &child_bar->b_go, child_bar->b_go,</div><div class="line"><a name="l00977"></a><span class="lineno"> 977</span>  child_bar->b_go + KMP_BARRIER_STATE_BUMP));</div><div class="line"><a name="l00978"></a><span class="lineno"> 978</span>  <span class="comment">// Use ngo store (if available) to both store ICVs and release child via child's b_go</span></div><div class="line"><a name="l00979"></a><span class="lineno"> 979</span>  ngo_store_go(&child_bar->th_fixed_icvs, &thr_bar->th_fixed_icvs);</div><div class="line"><a name="l00980"></a><span class="lineno"> 980</span>  }</div><div class="line"><a name="l00981"></a><span class="lineno"> 981</span>  ngo_sync();</div><div class="line"><a name="l00982"></a><span class="lineno"> 982</span>  }</div><div class="line"><a name="l00983"></a><span class="lineno"> 983</span>  TCW_8(thr_bar->b_go, KMP_INIT_BARRIER_STATE); <span class="comment">// Reset my b_go flag for next time</span></div><div class="line"><a name="l00984"></a><span class="lineno"> 984</span>  <span class="comment">// Now, release leaf children</span></div><div class="line"><a name="l00985"></a><span class="lineno"> 985</span>  <span class="keywordflow">if</span> (thr_bar->leaf_kids) { <span class="comment">// if there are any</span></div><div class="line"><a name="l00986"></a><span class="lineno"> 986</span>  <span class="comment">// We test team_change on the off-chance that the level 1 team changed.</span></div><div class="line"><a name="l00987"></a><span class="lineno"> 987</span>  <span class="keywordflow">if</span> (team_change || old_leaf_kids < thr_bar->leaf_kids) { <span class="comment">// some old leaf_kids, some new</span></div><div class="line"><a name="l00988"></a><span class="lineno"> 988</span>  <span class="keywordflow">if</span> (old_leaf_kids) { <span class="comment">// release old leaf kids</span></div><div class="line"><a name="l00989"></a><span class="lineno"> 989</span>  thr_bar->b_go |= old_leaf_state;</div><div class="line"><a name="l00990"></a><span class="lineno"> 990</span>  }</div><div class="line"><a name="l00991"></a><span class="lineno"> 991</span>  <span class="comment">// Release new leaf kids</span></div><div class="line"><a name="l00992"></a><span class="lineno"> 992</span>  last = tid+thr_bar->skip_per_level[1];</div><div class="line"><a name="l00993"></a><span class="lineno"> 993</span>  <span class="keywordflow">if</span> (last > nproc) last = nproc;</div><div class="line"><a name="l00994"></a><span class="lineno"> 994</span>  <span class="keywordflow">for</span> (child_tid=tid+1+old_leaf_kids; child_tid<(int)last; ++child_tid) { <span class="comment">// skip_per_level[0]=1</span></div><div class="line"><a name="l00995"></a><span class="lineno"> 995</span>  <span class="keyword">register</span> kmp_info_t *child_thr = team->t.t_threads[child_tid];</div><div class="line"><a name="l00996"></a><span class="lineno"> 996</span>  <span class="keyword">register</span> kmp_bstate_t *child_bar = &child_thr->th.th_bar[bt].bb;</div><div class="line"><a name="l00997"></a><span class="lineno"> 997</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hierarchical_barrier_release: T#%d(%d:%d) releasing"</span></div><div class="line"><a name="l00998"></a><span class="lineno"> 998</span>  <span class="stringliteral">" T#%d(%d:%d) go(%p): %u => %u\n"</span>,</div><div class="line"><a name="l00999"></a><span class="lineno"> 999</span>  gtid, team->t.t_id, tid, __kmp_gtid_from_tid(child_tid, team),</div><div class="line"><a name="l01000"></a><span class="lineno"> 1000</span>  team->t.t_id, child_tid, &child_bar->b_go, child_bar->b_go,</div><div class="line"><a name="l01001"></a><span class="lineno"> 1001</span>  child_bar->b_go + KMP_BARRIER_STATE_BUMP));</div><div class="line"><a name="l01002"></a><span class="lineno"> 1002</span>  <span class="comment">// Release child using child's b_go flag</span></div><div class="line"><a name="l01003"></a><span class="lineno"> 1003</span>  kmp_flag_64 flag(&child_bar->b_go, child_thr);</div><div class="line"><a name="l01004"></a><span class="lineno"> 1004</span>  flag.release();</div><div class="line"><a name="l01005"></a><span class="lineno"> 1005</span>  }</div><div class="line"><a name="l01006"></a><span class="lineno"> 1006</span>  }</div><div class="line"><a name="l01007"></a><span class="lineno"> 1007</span>  <span class="keywordflow">else</span> { <span class="comment">// Release all children at once with leaf_state bits on my own b_go flag</span></div><div class="line"><a name="l01008"></a><span class="lineno"> 1008</span>  thr_bar->b_go |= thr_bar->leaf_state;</div><div class="line"><a name="l01009"></a><span class="lineno"> 1009</span>  }</div><div class="line"><a name="l01010"></a><span class="lineno"> 1010</span>  }</div><div class="line"><a name="l01011"></a><span class="lineno"> 1011</span>  }</div><div class="line"><a name="l01012"></a><span class="lineno"> 1012</span>  <span class="keywordflow">else</span> { <span class="comment">// Blocktime is not infinite; do a simple hierarchical release</span></div><div class="line"><a name="l01013"></a><span class="lineno"> 1013</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> d=thr_bar->my_level-1; d>=0; --d) { <span class="comment">// Release highest level threads first</span></div><div class="line"><a name="l01014"></a><span class="lineno"> 1014</span>  last = tid+thr_bar->skip_per_level[d+1];</div><div class="line"><a name="l01015"></a><span class="lineno"> 1015</span>  kmp_uint32 skip = thr_bar->skip_per_level[d];</div><div class="line"><a name="l01016"></a><span class="lineno"> 1016</span>  <span class="keywordflow">if</span> (last > nproc) last = nproc;</div><div class="line"><a name="l01017"></a><span class="lineno"> 1017</span>  <span class="keywordflow">for</span> (child_tid=tid+skip; child_tid<(int)last; child_tid+=skip) {</div><div class="line"><a name="l01018"></a><span class="lineno"> 1018</span>  <span class="keyword">register</span> kmp_info_t *child_thr = team->t.t_threads[child_tid];</div><div class="line"><a name="l01019"></a><span class="lineno"> 1019</span>  <span class="keyword">register</span> kmp_bstate_t *child_bar = &child_thr->th.th_bar[bt].bb;</div><div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hierarchical_barrier_release: T#%d(%d:%d) releasing T#%d(%d:%d)"</span></div><div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>  <span class="stringliteral">" go(%p): %u => %u\n"</span>,</div><div class="line"><a name="l01022"></a><span class="lineno"> 1022</span>  gtid, team->t.t_id, tid, __kmp_gtid_from_tid(child_tid, team),</div><div class="line"><a name="l01023"></a><span class="lineno"> 1023</span>  team->t.t_id, child_tid, &child_bar->b_go, child_bar->b_go,</div><div class="line"><a name="l01024"></a><span class="lineno"> 1024</span>  child_bar->b_go + KMP_BARRIER_STATE_BUMP));</div><div class="line"><a name="l01025"></a><span class="lineno"> 1025</span>  <span class="comment">// Release child using child's b_go flag</span></div><div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>  kmp_flag_64 flag(&child_bar->b_go, child_thr);</div><div class="line"><a name="l01027"></a><span class="lineno"> 1027</span>  flag.release();</div><div class="line"><a name="l01028"></a><span class="lineno"> 1028</span>  }</div><div class="line"><a name="l01029"></a><span class="lineno"> 1029</span>  }</div><div class="line"><a name="l01030"></a><span class="lineno"> 1030</span>  }</div><div class="line"><a name="l01031"></a><span class="lineno"> 1031</span> <span class="preprocessor">#if KMP_BARRIER_ICV_PUSH</span></div><div class="line"><a name="l01032"></a><span class="lineno"> 1032</span>  <span class="keywordflow">if</span> (propagate_icvs && !KMP_MASTER_TID(tid)) <span class="comment">// non-leaves copy ICVs from fixed ICVs to local dest</span></div><div class="line"><a name="l01033"></a><span class="lineno"> 1033</span>  copy_icvs(&team->t.t_implicit_task_taskdata[tid].td_icvs, &thr_bar->th_fixed_icvs);</div><div class="line"><a name="l01034"></a><span class="lineno"> 1034</span> <span class="preprocessor">#endif // KMP_BARRIER_ICV_PUSH</span></div><div class="line"><a name="l01035"></a><span class="lineno"> 1035</span>  }</div><div class="line"><a name="l01036"></a><span class="lineno"> 1036</span>  KA_TRACE(20, (<span class="stringliteral">"__kmp_hierarchical_barrier_release: T#%d(%d:%d) exit for barrier type %d\n"</span>,</div><div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>  gtid, team->t.t_id, tid, bt));</div><div class="line"><a name="l01038"></a><span class="lineno"> 1038</span> }</div><div class="line"><a name="l01039"></a><span class="lineno"> 1039</span> </div><div class="line"><a name="l01040"></a><span class="lineno"> 1040</span> <span class="comment">// ---------------------------- End of Barrier Algorithms ----------------------------</span></div><div class="line"><a name="l01041"></a><span class="lineno"> 1041</span> </div><div class="line"><a name="l01042"></a><span class="lineno"> 1042</span> <span class="comment">// Internal function to do a barrier.</span></div><div class="line"><a name="l01043"></a><span class="lineno"> 1043</span> <span class="comment">/* If is_split is true, do a split barrier, otherwise, do a plain barrier</span></div><div class="line"><a name="l01044"></a><span class="lineno"> 1044</span> <span class="comment"> If reduce is non-NULL, do a split reduction barrier, otherwise, do a split barrier</span></div><div class="line"><a name="l01045"></a><span class="lineno"> 1045</span> <span class="comment"> Returns 0 if master thread, 1 if worker thread. */</span></div><div class="line"><a name="l01046"></a><span class="lineno"> 1046</span> <span class="keywordtype">int</span></div><div class="line"><a name="l01047"></a><span class="lineno"> 1047</span> __kmp_barrier(<span class="keyword">enum</span> barrier_type bt, <span class="keywordtype">int</span> gtid, <span class="keywordtype">int</span> is_split, <span class="keywordtype">size_t</span> reduce_size,</div><div class="line"><a name="l01048"></a><span class="lineno"> 1048</span>  <span class="keywordtype">void</span> *reduce_data, <span class="keywordtype">void</span> (*reduce)(<span class="keywordtype">void</span> *, <span class="keywordtype">void</span> *))</div><div class="line"><a name="l01049"></a><span class="lineno"> 1049</span> {</div><div class="line"><a name="l01050"></a><span class="lineno"> 1050</span>  KMP_TIME_DEVELOPER_BLOCK(KMP_barrier);</div><div class="line"><a name="l01051"></a><span class="lineno"> 1051</span>  KMP_SET_THREAD_STATE_BLOCK(PLAIN_BARRIER);</div><div class="line"><a name="l01052"></a><span class="lineno"> 1052</span>  KMP_TIME_PARTITIONED_BLOCK(OMP_plain_barrier);</div><div class="line"><a name="l01053"></a><span class="lineno"> 1053</span>  <span class="keyword">register</span> <span class="keywordtype">int</span> tid = __kmp_tid_from_gtid(gtid);</div><div class="line"><a name="l01054"></a><span class="lineno"> 1054</span>  <span class="keyword">register</span> kmp_info_t *this_thr = __kmp_threads[gtid];</div><div class="line"><a name="l01055"></a><span class="lineno"> 1055</span>  <span class="keyword">register</span> kmp_team_t *team = this_thr->th.th_team;</div><div class="line"><a name="l01056"></a><span class="lineno"> 1056</span>  <span class="keyword">register</span> <span class="keywordtype">int</span> status = 0;</div><div class="line"><a name="l01057"></a><span class="lineno"> 1057</span>  <a class="code" href="structident.html">ident_t</a> *loc = __kmp_threads[gtid]->th.th_ident;</div><div class="line"><a name="l01058"></a><span class="lineno"> 1058</span> <span class="preprocessor">#if OMPT_SUPPORT</span></div><div class="line"><a name="l01059"></a><span class="lineno"> 1059</span>  ompt_task_id_t my_task_id;</div><div class="line"><a name="l01060"></a><span class="lineno"> 1060</span>  ompt_parallel_id_t my_parallel_id;</div><div class="line"><a name="l01061"></a><span class="lineno"> 1061</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l01062"></a><span class="lineno"> 1062</span> </div><div class="line"><a name="l01063"></a><span class="lineno"> 1063</span>  KA_TRACE(15, (<span class="stringliteral">"__kmp_barrier: T#%d(%d:%d) has arrived\n"</span>,</div><div class="line"><a name="l01064"></a><span class="lineno"> 1064</span>  gtid, __kmp_team_from_gtid(gtid)->t.t_id, __kmp_tid_from_gtid(gtid)));</div><div class="line"><a name="l01065"></a><span class="lineno"> 1065</span> </div><div class="line"><a name="l01066"></a><span class="lineno"> 1066</span> <span class="preprocessor">#if OMPT_SUPPORT</span></div><div class="line"><a name="l01067"></a><span class="lineno"> 1067</span>  <span class="keywordflow">if</span> (ompt_enabled) {</div><div class="line"><a name="l01068"></a><span class="lineno"> 1068</span> <span class="preprocessor">#if OMPT_BLAME</span></div><div class="line"><a name="l01069"></a><span class="lineno"> 1069</span>  my_task_id = team->t.t_implicit_task_taskdata[tid].ompt_task_info.task_id;</div><div class="line"><a name="l01070"></a><span class="lineno"> 1070</span>  my_parallel_id = team->t.ompt_team_info.parallel_id;</div><div class="line"><a name="l01071"></a><span class="lineno"> 1071</span> </div><div class="line"><a name="l01072"></a><span class="lineno"> 1072</span> <span class="preprocessor">#if OMPT_TRACE</span></div><div class="line"><a name="l01073"></a><span class="lineno"> 1073</span>  <span class="keywordflow">if</span> (this_thr->th.ompt_thread_info.state == ompt_state_wait_single) {</div><div class="line"><a name="l01074"></a><span class="lineno"> 1074</span>  <span class="keywordflow">if</span> (ompt_callbacks.ompt_callback(ompt_event_single_others_end)) {</div><div class="line"><a name="l01075"></a><span class="lineno"> 1075</span>  ompt_callbacks.ompt_callback(ompt_event_single_others_end)(</div><div class="line"><a name="l01076"></a><span class="lineno"> 1076</span>  my_parallel_id, my_task_id);</div><div class="line"><a name="l01077"></a><span class="lineno"> 1077</span>  }</div><div class="line"><a name="l01078"></a><span class="lineno"> 1078</span>  }</div><div class="line"><a name="l01079"></a><span class="lineno"> 1079</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l01080"></a><span class="lineno"> 1080</span>  <span class="keywordflow">if</span> (ompt_callbacks.ompt_callback(ompt_event_barrier_begin)) {</div><div class="line"><a name="l01081"></a><span class="lineno"> 1081</span>  ompt_callbacks.ompt_callback(ompt_event_barrier_begin)(</div><div class="line"><a name="l01082"></a><span class="lineno"> 1082</span>  my_parallel_id, my_task_id);</div><div class="line"><a name="l01083"></a><span class="lineno"> 1083</span>  }</div><div class="line"><a name="l01084"></a><span class="lineno"> 1084</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l01085"></a><span class="lineno"> 1085</span>  <span class="comment">// It is OK to report the barrier state after the barrier begin callback.</span></div><div class="line"><a name="l01086"></a><span class="lineno"> 1086</span>  <span class="comment">// According to the OMPT specification, a compliant implementation may</span></div><div class="line"><a name="l01087"></a><span class="lineno"> 1087</span>  <span class="comment">// even delay reporting this state until the barrier begins to wait.</span></div><div class="line"><a name="l01088"></a><span class="lineno"> 1088</span>  this_thr->th.ompt_thread_info.state = ompt_state_wait_barrier;</div><div class="line"><a name="l01089"></a><span class="lineno"> 1089</span>  }</div><div class="line"><a name="l01090"></a><span class="lineno"> 1090</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l01091"></a><span class="lineno"> 1091</span> </div><div class="line"><a name="l01092"></a><span class="lineno"> 1092</span>  <span class="keywordflow">if</span> (! team->t.t_serialized) {</div><div class="line"><a name="l01093"></a><span class="lineno"> 1093</span> <span class="preprocessor">#if USE_ITT_BUILD</span></div><div class="line"><a name="l01094"></a><span class="lineno"> 1094</span>  <span class="comment">// This value will be used in itt notify events below.</span></div><div class="line"><a name="l01095"></a><span class="lineno"> 1095</span>  <span class="keywordtype">void</span> *itt_sync_obj = NULL;</div><div class="line"><a name="l01096"></a><span class="lineno"> 1096</span> <span class="preprocessor"># if USE_ITT_NOTIFY</span></div><div class="line"><a name="l01097"></a><span class="lineno"> 1097</span>  <span class="keywordflow">if</span> (__itt_sync_create_ptr || KMP_ITT_DEBUG)</div><div class="line"><a name="l01098"></a><span class="lineno"> 1098</span>  itt_sync_obj = __kmp_itt_barrier_object(gtid, bt, 1);</div><div class="line"><a name="l01099"></a><span class="lineno"> 1099</span> <span class="preprocessor"># endif</span></div><div class="line"><a name="l01100"></a><span class="lineno"> 1100</span> <span class="preprocessor">#endif </span><span class="comment">/* USE_ITT_BUILD */</span><span class="preprocessor"></span></div><div class="line"><a name="l01101"></a><span class="lineno"> 1101</span>  <span class="keywordflow">if</span> (__kmp_tasking_mode == tskm_extra_barrier) {</div><div class="line"><a name="l01102"></a><span class="lineno"> 1102</span>  __kmp_tasking_barrier(team, this_thr, gtid);</div><div class="line"><a name="l01103"></a><span class="lineno"> 1103</span>  KA_TRACE(15, (<span class="stringliteral">"__kmp_barrier: T#%d(%d:%d) past tasking barrier\n"</span>,</div><div class="line"><a name="l01104"></a><span class="lineno"> 1104</span>  gtid, __kmp_team_from_gtid(gtid)->t.t_id, __kmp_tid_from_gtid(gtid)));</div><div class="line"><a name="l01105"></a><span class="lineno"> 1105</span>  }</div><div class="line"><a name="l01106"></a><span class="lineno"> 1106</span> </div><div class="line"><a name="l01107"></a><span class="lineno"> 1107</span>  <span class="comment">/* Copy the blocktime info to the thread, where __kmp_wait_template() can access it when</span></div><div class="line"><a name="l01108"></a><span class="lineno"> 1108</span> <span class="comment"> the team struct is not guaranteed to exist. */</span></div><div class="line"><a name="l01109"></a><span class="lineno"> 1109</span>  <span class="comment">// See note about the corresponding code in __kmp_join_barrier() being performance-critical.</span></div><div class="line"><a name="l01110"></a><span class="lineno"> 1110</span>  <span class="keywordflow">if</span> (__kmp_dflt_blocktime != KMP_MAX_BLOCKTIME) {</div><div class="line"><a name="l01111"></a><span class="lineno"> 1111</span>  this_thr->th.th_team_bt_intervals = team->t.t_implicit_task_taskdata[tid].td_icvs.bt_intervals;</div><div class="line"><a name="l01112"></a><span class="lineno"> 1112</span>  this_thr->th.th_team_bt_set = team->t.t_implicit_task_taskdata[tid].td_icvs.bt_set;</div><div class="line"><a name="l01113"></a><span class="lineno"> 1113</span>  }</div><div class="line"><a name="l01114"></a><span class="lineno"> 1114</span> </div><div class="line"><a name="l01115"></a><span class="lineno"> 1115</span> <span class="preprocessor">#if USE_ITT_BUILD</span></div><div class="line"><a name="l01116"></a><span class="lineno"> 1116</span>  <span class="keywordflow">if</span> (__itt_sync_create_ptr || KMP_ITT_DEBUG)</div><div class="line"><a name="l01117"></a><span class="lineno"> 1117</span>  __kmp_itt_barrier_starting(gtid, itt_sync_obj);</div><div class="line"><a name="l01118"></a><span class="lineno"> 1118</span> <span class="preprocessor">#endif </span><span class="comment">/* USE_ITT_BUILD */</span><span class="preprocessor"></span></div><div class="line"><a name="l01119"></a><span class="lineno"> 1119</span> <span class="preprocessor">#if USE_DEBUGGER</span></div><div class="line"><a name="l01120"></a><span class="lineno"> 1120</span>  <span class="comment">// Let the debugger know: the thread arrived to the barrier and waiting.</span></div><div class="line"><a name="l01121"></a><span class="lineno"> 1121</span>  <span class="keywordflow">if</span> (KMP_MASTER_TID(tid)) { <span class="comment">// Master counter is stored in team structure.</span></div><div class="line"><a name="l01122"></a><span class="lineno"> 1122</span>  team->t.t_bar[bt].b_master_arrived += 1;</div><div class="line"><a name="l01123"></a><span class="lineno"> 1123</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l01124"></a><span class="lineno"> 1124</span>  this_thr->th.th_bar[bt].bb.b_worker_arrived += 1;</div><div class="line"><a name="l01125"></a><span class="lineno"> 1125</span>  } <span class="comment">// if</span></div><div class="line"><a name="l01126"></a><span class="lineno"> 1126</span> <span class="preprocessor">#endif </span><span class="comment">/* USE_DEBUGGER */</span><span class="preprocessor"></span></div><div class="line"><a name="l01127"></a><span class="lineno"> 1127</span>  <span class="keywordflow">if</span> (reduce != NULL) {</div><div class="line"><a name="l01128"></a><span class="lineno"> 1128</span>  <span class="comment">//KMP_DEBUG_ASSERT( is_split == TRUE ); // #C69956</span></div><div class="line"><a name="l01129"></a><span class="lineno"> 1129</span>  this_thr->th.th_local.reduce_data = reduce_data;</div><div class="line"><a name="l01130"></a><span class="lineno"> 1130</span>  }</div><div class="line"><a name="l01131"></a><span class="lineno"> 1131</span> </div><div class="line"><a name="l01132"></a><span class="lineno"> 1132</span>  <span class="keywordflow">if</span> (KMP_MASTER_TID(tid) && __kmp_tasking_mode != tskm_immediate_exec)</div><div class="line"><a name="l01133"></a><span class="lineno"> 1133</span>  __kmp_task_team_setup(this_thr, team, 0); <span class="comment">// use 0 to only setup the current team if nthreads > 1</span></div><div class="line"><a name="l01134"></a><span class="lineno"> 1134</span> </div><div class="line"><a name="l01135"></a><span class="lineno"> 1135</span>  <span class="keywordflow">switch</span> (__kmp_barrier_gather_pattern[bt]) {</div><div class="line"><a name="l01136"></a><span class="lineno"> 1136</span>  <span class="keywordflow">case</span> bp_hyper_bar: {</div><div class="line"><a name="l01137"></a><span class="lineno"> 1137</span>  KMP_ASSERT(__kmp_barrier_gather_branch_bits[bt]); <span class="comment">// don't set branch bits to 0; use linear</span></div><div class="line"><a name="l01138"></a><span class="lineno"> 1138</span>  __kmp_hyper_barrier_gather(bt, this_thr, gtid, tid, reduce</div><div class="line"><a name="l01139"></a><span class="lineno"> 1139</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l01140"></a><span class="lineno"> 1140</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01141"></a><span class="lineno"> 1141</span>  }</div><div class="line"><a name="l01142"></a><span class="lineno"> 1142</span>  <span class="keywordflow">case</span> bp_hierarchical_bar: {</div><div class="line"><a name="l01143"></a><span class="lineno"> 1143</span>  __kmp_hierarchical_barrier_gather(bt, this_thr, gtid, tid, reduce</div><div class="line"><a name="l01144"></a><span class="lineno"> 1144</span>  USE_ITT_BUILD_ARG(itt_sync_obj));</div><div class="line"><a name="l01145"></a><span class="lineno"> 1145</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01146"></a><span class="lineno"> 1146</span>  }</div><div class="line"><a name="l01147"></a><span class="lineno"> 1147</span>  <span class="keywordflow">case</span> bp_tree_bar: {</div><div class="line"><a name="l01148"></a><span class="lineno"> 1148</span>  KMP_ASSERT(__kmp_barrier_gather_branch_bits[bt]); <span class="comment">// don't set branch bits to 0; use linear</span></div><div class="line"><a name="l01149"></a><span class="lineno"> 1149</span>  __kmp_tree_barrier_gather(bt, this_thr, gtid, tid, reduce</div><div class="line"><a name="l01150"></a><span class="lineno"> 1150</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l01151"></a><span class="lineno"> 1151</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01152"></a><span class="lineno"> 1152</span>  }</div><div class="line"><a name="l01153"></a><span class="lineno"> 1153</span>  <span class="keywordflow">default</span>: {</div><div class="line"><a name="l01154"></a><span class="lineno"> 1154</span>  __kmp_linear_barrier_gather(bt, this_thr, gtid, tid, reduce</div><div class="line"><a name="l01155"></a><span class="lineno"> 1155</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l01156"></a><span class="lineno"> 1156</span>  }</div><div class="line"><a name="l01157"></a><span class="lineno"> 1157</span>  }</div><div class="line"><a name="l01158"></a><span class="lineno"> 1158</span> </div><div class="line"><a name="l01159"></a><span class="lineno"> 1159</span>  KMP_MB();</div><div class="line"><a name="l01160"></a><span class="lineno"> 1160</span> </div><div class="line"><a name="l01161"></a><span class="lineno"> 1161</span>  <span class="keywordflow">if</span> (KMP_MASTER_TID(tid)) {</div><div class="line"><a name="l01162"></a><span class="lineno"> 1162</span>  status = 0;</div><div class="line"><a name="l01163"></a><span class="lineno"> 1163</span>  <span class="keywordflow">if</span> (__kmp_tasking_mode != tskm_immediate_exec) {</div><div class="line"><a name="l01164"></a><span class="lineno"> 1164</span>  __kmp_task_team_wait(this_thr, team</div><div class="line"><a name="l01165"></a><span class="lineno"> 1165</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l01166"></a><span class="lineno"> 1166</span>  }</div><div class="line"><a name="l01167"></a><span class="lineno"> 1167</span> <span class="preprocessor">#if USE_DEBUGGER</span></div><div class="line"><a name="l01168"></a><span class="lineno"> 1168</span>  <span class="comment">// Let the debugger know: All threads are arrived and starting leaving the barrier.</span></div><div class="line"><a name="l01169"></a><span class="lineno"> 1169</span>  team->t.t_bar[bt].b_team_arrived += 1;</div><div class="line"><a name="l01170"></a><span class="lineno"> 1170</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l01171"></a><span class="lineno"> 1171</span> </div><div class="line"><a name="l01172"></a><span class="lineno"> 1172</span> <span class="preprocessor">#if USE_ITT_BUILD</span></div><div class="line"><a name="l01173"></a><span class="lineno"> 1173</span>  <span class="comment">/* TODO: In case of split reduction barrier, master thread may send acquired event early,</span></div><div class="line"><a name="l01174"></a><span class="lineno"> 1174</span> <span class="comment"> before the final summation into the shared variable is done (final summation can be a</span></div><div class="line"><a name="l01175"></a><span class="lineno"> 1175</span> <span class="comment"> long operation for array reductions). */</span></div><div class="line"><a name="l01176"></a><span class="lineno"> 1176</span>  <span class="keywordflow">if</span> (__itt_sync_create_ptr || KMP_ITT_DEBUG)</div><div class="line"><a name="l01177"></a><span class="lineno"> 1177</span>  __kmp_itt_barrier_middle(gtid, itt_sync_obj);</div><div class="line"><a name="l01178"></a><span class="lineno"> 1178</span> <span class="preprocessor">#endif </span><span class="comment">/* USE_ITT_BUILD */</span><span class="preprocessor"></span></div><div class="line"><a name="l01179"></a><span class="lineno"> 1179</span> <span class="preprocessor">#if USE_ITT_BUILD && USE_ITT_NOTIFY</span></div><div class="line"><a name="l01180"></a><span class="lineno"> 1180</span>  <span class="comment">// Barrier - report frame end (only if active_level == 1)</span></div><div class="line"><a name="l01181"></a><span class="lineno"> 1181</span>  <span class="keywordflow">if</span> ((__itt_frame_submit_v3_ptr || KMP_ITT_DEBUG) && __kmp_forkjoin_frames_mode &&</div><div class="line"><a name="l01182"></a><span class="lineno"> 1182</span> #<span class="keywordflow">if</span> OMP_40_ENABLED</div><div class="line"><a name="l01183"></a><span class="lineno"> 1183</span>  this_thr->th.th_teams_microtask == NULL &&</div><div class="line"><a name="l01184"></a><span class="lineno"> 1184</span> #endif</div><div class="line"><a name="l01185"></a><span class="lineno"> 1185</span>  team->t.t_active_level == 1)</div><div class="line"><a name="l01186"></a><span class="lineno"> 1186</span>  {</div><div class="line"><a name="l01187"></a><span class="lineno"> 1187</span>  kmp_uint64 cur_time = __itt_get_timestamp();</div><div class="line"><a name="l01188"></a><span class="lineno"> 1188</span>  kmp_info_t **other_threads = team->t.t_threads;</div><div class="line"><a name="l01189"></a><span class="lineno"> 1189</span>  <span class="keywordtype">int</span> nproc = this_thr->th.th_team_nproc;</div><div class="line"><a name="l01190"></a><span class="lineno"> 1190</span>  <span class="keywordtype">int</span> i;</div><div class="line"><a name="l01191"></a><span class="lineno"> 1191</span>  <span class="keywordflow">switch</span>(__kmp_forkjoin_frames_mode) {</div><div class="line"><a name="l01192"></a><span class="lineno"> 1192</span>  <span class="keywordflow">case</span> 1:</div><div class="line"><a name="l01193"></a><span class="lineno"> 1193</span>  __kmp_itt_frame_submit(gtid, this_thr->th.th_frame_time, cur_time, 0, loc, nproc);</div><div class="line"><a name="l01194"></a><span class="lineno"> 1194</span>  this_thr->th.th_frame_time = cur_time;</div><div class="line"><a name="l01195"></a><span class="lineno"> 1195</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01196"></a><span class="lineno"> 1196</span>  <span class="keywordflow">case</span> 2: <span class="comment">// AC 2015-01-19: currently does not work for hierarchical (to be fixed)</span></div><div class="line"><a name="l01197"></a><span class="lineno"> 1197</span>  __kmp_itt_frame_submit(gtid, this_thr->th.th_bar_min_time, cur_time, 1, loc, nproc);</div><div class="line"><a name="l01198"></a><span class="lineno"> 1198</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01199"></a><span class="lineno"> 1199</span>  <span class="keywordflow">case</span> 3:</div><div class="line"><a name="l01200"></a><span class="lineno"> 1200</span>  <span class="keywordflow">if</span>( __itt_metadata_add_ptr ) {</div><div class="line"><a name="l01201"></a><span class="lineno"> 1201</span>  <span class="comment">// Initialize with master's wait time</span></div><div class="line"><a name="l01202"></a><span class="lineno"> 1202</span>  kmp_uint64 delta = cur_time - this_thr->th.th_bar_arrive_time;</div><div class="line"><a name="l01203"></a><span class="lineno"> 1203</span>  <span class="comment">// Set arrive time to zero to be able to check it in __kmp_invoke_task(); the same is done inside the loop below</span></div><div class="line"><a name="l01204"></a><span class="lineno"> 1204</span>  this_thr->th.th_bar_arrive_time = 0;</div><div class="line"><a name="l01205"></a><span class="lineno"> 1205</span>  <span class="keywordflow">for</span> (i=1; i<nproc; ++i) {</div><div class="line"><a name="l01206"></a><span class="lineno"> 1206</span>  delta += ( cur_time - other_threads[i]->th.th_bar_arrive_time );</div><div class="line"><a name="l01207"></a><span class="lineno"> 1207</span>  other_threads[i]->th.th_bar_arrive_time = 0;</div><div class="line"><a name="l01208"></a><span class="lineno"> 1208</span>  }</div><div class="line"><a name="l01209"></a><span class="lineno"> 1209</span>  __kmp_itt_metadata_imbalance(gtid, this_thr->th.th_frame_time, cur_time, delta, (kmp_uint64)( reduce != NULL));</div><div class="line"><a name="l01210"></a><span class="lineno"> 1210</span>  }</div><div class="line"><a name="l01211"></a><span class="lineno"> 1211</span>  __kmp_itt_frame_submit(gtid, this_thr->th.th_frame_time, cur_time, 0, loc, nproc);</div><div class="line"><a name="l01212"></a><span class="lineno"> 1212</span>  this_thr->th.th_frame_time = cur_time;</div><div class="line"><a name="l01213"></a><span class="lineno"> 1213</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01214"></a><span class="lineno"> 1214</span>  }</div><div class="line"><a name="l01215"></a><span class="lineno"> 1215</span>  }</div><div class="line"><a name="l01216"></a><span class="lineno"> 1216</span> <span class="preprocessor">#endif </span><span class="comment">/* USE_ITT_BUILD */</span><span class="preprocessor"></span></div><div class="line"><a name="l01217"></a><span class="lineno"> 1217</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l01218"></a><span class="lineno"> 1218</span>  status = 1;</div><div class="line"><a name="l01219"></a><span class="lineno"> 1219</span> <span class="preprocessor">#if USE_ITT_BUILD</span></div><div class="line"><a name="l01220"></a><span class="lineno"> 1220</span>  <span class="keywordflow">if</span> (__itt_sync_create_ptr || KMP_ITT_DEBUG)</div><div class="line"><a name="l01221"></a><span class="lineno"> 1221</span>  __kmp_itt_barrier_middle(gtid, itt_sync_obj);</div><div class="line"><a name="l01222"></a><span class="lineno"> 1222</span> <span class="preprocessor">#endif </span><span class="comment">/* USE_ITT_BUILD */</span><span class="preprocessor"></span></div><div class="line"><a name="l01223"></a><span class="lineno"> 1223</span>  }</div><div class="line"><a name="l01224"></a><span class="lineno"> 1224</span>  <span class="keywordflow">if</span> (status == 1 || ! is_split) {</div><div class="line"><a name="l01225"></a><span class="lineno"> 1225</span>  <span class="keywordflow">switch</span> (__kmp_barrier_release_pattern[bt]) {</div><div class="line"><a name="l01226"></a><span class="lineno"> 1226</span>  <span class="keywordflow">case</span> bp_hyper_bar: {</div><div class="line"><a name="l01227"></a><span class="lineno"> 1227</span>  KMP_ASSERT(__kmp_barrier_release_branch_bits[bt]);</div><div class="line"><a name="l01228"></a><span class="lineno"> 1228</span>  __kmp_hyper_barrier_release(bt, this_thr, gtid, tid, FALSE</div><div class="line"><a name="l01229"></a><span class="lineno"> 1229</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l01230"></a><span class="lineno"> 1230</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01231"></a><span class="lineno"> 1231</span>  }</div><div class="line"><a name="l01232"></a><span class="lineno"> 1232</span>  <span class="keywordflow">case</span> bp_hierarchical_bar: {</div><div class="line"><a name="l01233"></a><span class="lineno"> 1233</span>  __kmp_hierarchical_barrier_release(bt, this_thr, gtid, tid, FALSE</div><div class="line"><a name="l01234"></a><span class="lineno"> 1234</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l01235"></a><span class="lineno"> 1235</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01236"></a><span class="lineno"> 1236</span>  }</div><div class="line"><a name="l01237"></a><span class="lineno"> 1237</span>  <span class="keywordflow">case</span> bp_tree_bar: {</div><div class="line"><a name="l01238"></a><span class="lineno"> 1238</span>  KMP_ASSERT(__kmp_barrier_release_branch_bits[bt]);</div><div class="line"><a name="l01239"></a><span class="lineno"> 1239</span>  __kmp_tree_barrier_release(bt, this_thr, gtid, tid, FALSE</div><div class="line"><a name="l01240"></a><span class="lineno"> 1240</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l01241"></a><span class="lineno"> 1241</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01242"></a><span class="lineno"> 1242</span>  }</div><div class="line"><a name="l01243"></a><span class="lineno"> 1243</span>  <span class="keywordflow">default</span>: {</div><div class="line"><a name="l01244"></a><span class="lineno"> 1244</span>  __kmp_linear_barrier_release(bt, this_thr, gtid, tid, FALSE</div><div class="line"><a name="l01245"></a><span class="lineno"> 1245</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l01246"></a><span class="lineno"> 1246</span>  }</div><div class="line"><a name="l01247"></a><span class="lineno"> 1247</span>  }</div><div class="line"><a name="l01248"></a><span class="lineno"> 1248</span>  <span class="keywordflow">if</span> (__kmp_tasking_mode != tskm_immediate_exec) {</div><div class="line"><a name="l01249"></a><span class="lineno"> 1249</span>  __kmp_task_team_sync(this_thr, team);</div><div class="line"><a name="l01250"></a><span class="lineno"> 1250</span>  }</div><div class="line"><a name="l01251"></a><span class="lineno"> 1251</span>  }</div><div class="line"><a name="l01252"></a><span class="lineno"> 1252</span> </div><div class="line"><a name="l01253"></a><span class="lineno"> 1253</span> <span class="preprocessor">#if USE_ITT_BUILD</span></div><div class="line"><a name="l01254"></a><span class="lineno"> 1254</span>  <span class="comment">/* GEH: TODO: Move this under if-condition above and also include in</span></div><div class="line"><a name="l01255"></a><span class="lineno"> 1255</span> <span class="comment"> __kmp_end_split_barrier(). This will more accurately represent the actual release time</span></div><div class="line"><a name="l01256"></a><span class="lineno"> 1256</span> <span class="comment"> of the threads for split barriers. */</span></div><div class="line"><a name="l01257"></a><span class="lineno"> 1257</span>  <span class="keywordflow">if</span> (__itt_sync_create_ptr || KMP_ITT_DEBUG)</div><div class="line"><a name="l01258"></a><span class="lineno"> 1258</span>  __kmp_itt_barrier_finished(gtid, itt_sync_obj);</div><div class="line"><a name="l01259"></a><span class="lineno"> 1259</span> <span class="preprocessor">#endif </span><span class="comment">/* USE_ITT_BUILD */</span><span class="preprocessor"></span></div><div class="line"><a name="l01260"></a><span class="lineno"> 1260</span>  } <span class="keywordflow">else</span> { <span class="comment">// Team is serialized.</span></div><div class="line"><a name="l01261"></a><span class="lineno"> 1261</span>  status = 0;</div><div class="line"><a name="l01262"></a><span class="lineno"> 1262</span>  <span class="keywordflow">if</span> (__kmp_tasking_mode != tskm_immediate_exec) {</div><div class="line"><a name="l01263"></a><span class="lineno"> 1263</span> <span class="preprocessor">#if OMP_45_ENABLED</span></div><div class="line"><a name="l01264"></a><span class="lineno"> 1264</span>  <span class="keywordflow">if</span> ( this_thr->th.th_task_team != NULL ) {</div><div class="line"><a name="l01265"></a><span class="lineno"> 1265</span>  <span class="keywordtype">void</span> *itt_sync_obj = NULL;</div><div class="line"><a name="l01266"></a><span class="lineno"> 1266</span> <span class="preprocessor">#if USE_ITT_NOTIFY</span></div><div class="line"><a name="l01267"></a><span class="lineno"> 1267</span>  <span class="keywordflow">if</span> (__itt_sync_create_ptr || KMP_ITT_DEBUG) {</div><div class="line"><a name="l01268"></a><span class="lineno"> 1268</span>  itt_sync_obj = __kmp_itt_barrier_object(gtid, bt, 1);</div><div class="line"><a name="l01269"></a><span class="lineno"> 1269</span>  __kmp_itt_barrier_starting(gtid, itt_sync_obj);</div><div class="line"><a name="l01270"></a><span class="lineno"> 1270</span>  }</div><div class="line"><a name="l01271"></a><span class="lineno"> 1271</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l01272"></a><span class="lineno"> 1272</span> </div><div class="line"><a name="l01273"></a><span class="lineno"> 1273</span>  KMP_DEBUG_ASSERT(this_thr->th.th_task_team->tt.tt_found_proxy_tasks == TRUE);</div><div class="line"><a name="l01274"></a><span class="lineno"> 1274</span>  __kmp_task_team_wait(this_thr, team</div><div class="line"><a name="l01275"></a><span class="lineno"> 1275</span>  USE_ITT_BUILD_ARG(itt_sync_obj));</div><div class="line"><a name="l01276"></a><span class="lineno"> 1276</span>  __kmp_task_team_setup(this_thr, team, 0);</div><div class="line"><a name="l01277"></a><span class="lineno"> 1277</span> </div><div class="line"><a name="l01278"></a><span class="lineno"> 1278</span> <span class="preprocessor">#if USE_ITT_BUILD</span></div><div class="line"><a name="l01279"></a><span class="lineno"> 1279</span>  <span class="keywordflow">if</span> (__itt_sync_create_ptr || KMP_ITT_DEBUG)</div><div class="line"><a name="l01280"></a><span class="lineno"> 1280</span>  __kmp_itt_barrier_finished(gtid, itt_sync_obj);</div><div class="line"><a name="l01281"></a><span class="lineno"> 1281</span> <span class="preprocessor">#endif </span><span class="comment">/* USE_ITT_BUILD */</span><span class="preprocessor"></span></div><div class="line"><a name="l01282"></a><span class="lineno"> 1282</span>  }</div><div class="line"><a name="l01283"></a><span class="lineno"> 1283</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l01284"></a><span class="lineno"> 1284</span>  <span class="comment">// The task team should be NULL for serialized code (tasks will be executed immediately)</span></div><div class="line"><a name="l01285"></a><span class="lineno"> 1285</span>  KMP_DEBUG_ASSERT(team->t.t_task_team[this_thr->th.th_task_state] == NULL);</div><div class="line"><a name="l01286"></a><span class="lineno"> 1286</span>  KMP_DEBUG_ASSERT(this_thr->th.th_task_team == NULL);</div><div class="line"><a name="l01287"></a><span class="lineno"> 1287</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l01288"></a><span class="lineno"> 1288</span>  }</div><div class="line"><a name="l01289"></a><span class="lineno"> 1289</span>  }</div><div class="line"><a name="l01290"></a><span class="lineno"> 1290</span>  KA_TRACE(15, (<span class="stringliteral">"__kmp_barrier: T#%d(%d:%d) is leaving with return value %d\n"</span>,</div><div class="line"><a name="l01291"></a><span class="lineno"> 1291</span>  gtid, __kmp_team_from_gtid(gtid)->t.t_id, __kmp_tid_from_gtid(gtid), status));</div><div class="line"><a name="l01292"></a><span class="lineno"> 1292</span> </div><div class="line"><a name="l01293"></a><span class="lineno"> 1293</span> <span class="preprocessor">#if OMPT_SUPPORT</span></div><div class="line"><a name="l01294"></a><span class="lineno"> 1294</span>  <span class="keywordflow">if</span> (ompt_enabled) {</div><div class="line"><a name="l01295"></a><span class="lineno"> 1295</span> <span class="preprocessor">#if OMPT_BLAME</span></div><div class="line"><a name="l01296"></a><span class="lineno"> 1296</span>  <span class="keywordflow">if</span> (ompt_callbacks.ompt_callback(ompt_event_barrier_end)) {</div><div class="line"><a name="l01297"></a><span class="lineno"> 1297</span>  ompt_callbacks.ompt_callback(ompt_event_barrier_end)(</div><div class="line"><a name="l01298"></a><span class="lineno"> 1298</span>  my_parallel_id, my_task_id);</div><div class="line"><a name="l01299"></a><span class="lineno"> 1299</span>  }</div><div class="line"><a name="l01300"></a><span class="lineno"> 1300</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l01301"></a><span class="lineno"> 1301</span>  this_thr->th.ompt_thread_info.state = ompt_state_work_parallel;</div><div class="line"><a name="l01302"></a><span class="lineno"> 1302</span>  }</div><div class="line"><a name="l01303"></a><span class="lineno"> 1303</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l01304"></a><span class="lineno"> 1304</span> </div><div class="line"><a name="l01305"></a><span class="lineno"> 1305</span>  <span class="keywordflow">return</span> status;</div><div class="line"><a name="l01306"></a><span class="lineno"> 1306</span> }</div><div class="line"><a name="l01307"></a><span class="lineno"> 1307</span> </div><div class="line"><a name="l01308"></a><span class="lineno"> 1308</span> </div><div class="line"><a name="l01309"></a><span class="lineno"> 1309</span> <span class="keywordtype">void</span></div><div class="line"><a name="l01310"></a><span class="lineno"> 1310</span> __kmp_end_split_barrier(<span class="keyword">enum</span> barrier_type bt, <span class="keywordtype">int</span> gtid)</div><div class="line"><a name="l01311"></a><span class="lineno"> 1311</span> {</div><div class="line"><a name="l01312"></a><span class="lineno"> 1312</span>  KMP_TIME_DEVELOPER_BLOCK(KMP_end_split_barrier);</div><div class="line"><a name="l01313"></a><span class="lineno"> 1313</span>  <span class="keywordtype">int</span> tid = __kmp_tid_from_gtid(gtid);</div><div class="line"><a name="l01314"></a><span class="lineno"> 1314</span>  kmp_info_t *this_thr = __kmp_threads[gtid];</div><div class="line"><a name="l01315"></a><span class="lineno"> 1315</span>  kmp_team_t *team = this_thr->th.th_team;</div><div class="line"><a name="l01316"></a><span class="lineno"> 1316</span> </div><div class="line"><a name="l01317"></a><span class="lineno"> 1317</span>  <span class="keywordflow">if</span> (!team->t.t_serialized) {</div><div class="line"><a name="l01318"></a><span class="lineno"> 1318</span>  <span class="keywordflow">if</span> (KMP_MASTER_GTID(gtid)) {</div><div class="line"><a name="l01319"></a><span class="lineno"> 1319</span>  <span class="keywordflow">switch</span> (__kmp_barrier_release_pattern[bt]) {</div><div class="line"><a name="l01320"></a><span class="lineno"> 1320</span>  <span class="keywordflow">case</span> bp_hyper_bar: {</div><div class="line"><a name="l01321"></a><span class="lineno"> 1321</span>  KMP_ASSERT(__kmp_barrier_release_branch_bits[bt]);</div><div class="line"><a name="l01322"></a><span class="lineno"> 1322</span>  __kmp_hyper_barrier_release(bt, this_thr, gtid, tid, FALSE</div><div class="line"><a name="l01323"></a><span class="lineno"> 1323</span>  USE_ITT_BUILD_ARG(NULL) );</div><div class="line"><a name="l01324"></a><span class="lineno"> 1324</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01325"></a><span class="lineno"> 1325</span>  }</div><div class="line"><a name="l01326"></a><span class="lineno"> 1326</span>  <span class="keywordflow">case</span> bp_hierarchical_bar: {</div><div class="line"><a name="l01327"></a><span class="lineno"> 1327</span>  __kmp_hierarchical_barrier_release(bt, this_thr, gtid, tid, FALSE</div><div class="line"><a name="l01328"></a><span class="lineno"> 1328</span>  USE_ITT_BUILD_ARG(NULL));</div><div class="line"><a name="l01329"></a><span class="lineno"> 1329</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01330"></a><span class="lineno"> 1330</span>  }</div><div class="line"><a name="l01331"></a><span class="lineno"> 1331</span>  <span class="keywordflow">case</span> bp_tree_bar: {</div><div class="line"><a name="l01332"></a><span class="lineno"> 1332</span>  KMP_ASSERT(__kmp_barrier_release_branch_bits[bt]);</div><div class="line"><a name="l01333"></a><span class="lineno"> 1333</span>  __kmp_tree_barrier_release(bt, this_thr, gtid, tid, FALSE</div><div class="line"><a name="l01334"></a><span class="lineno"> 1334</span>  USE_ITT_BUILD_ARG(NULL) );</div><div class="line"><a name="l01335"></a><span class="lineno"> 1335</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01336"></a><span class="lineno"> 1336</span>  }</div><div class="line"><a name="l01337"></a><span class="lineno"> 1337</span>  <span class="keywordflow">default</span>: {</div><div class="line"><a name="l01338"></a><span class="lineno"> 1338</span>  __kmp_linear_barrier_release(bt, this_thr, gtid, tid, FALSE</div><div class="line"><a name="l01339"></a><span class="lineno"> 1339</span>  USE_ITT_BUILD_ARG(NULL) );</div><div class="line"><a name="l01340"></a><span class="lineno"> 1340</span>  }</div><div class="line"><a name="l01341"></a><span class="lineno"> 1341</span>  }</div><div class="line"><a name="l01342"></a><span class="lineno"> 1342</span>  <span class="keywordflow">if</span> (__kmp_tasking_mode != tskm_immediate_exec) {</div><div class="line"><a name="l01343"></a><span class="lineno"> 1343</span>  __kmp_task_team_sync(this_thr, team);</div><div class="line"><a name="l01344"></a><span class="lineno"> 1344</span>  } <span class="comment">// if</span></div><div class="line"><a name="l01345"></a><span class="lineno"> 1345</span>  }</div><div class="line"><a name="l01346"></a><span class="lineno"> 1346</span>  }</div><div class="line"><a name="l01347"></a><span class="lineno"> 1347</span> }</div><div class="line"><a name="l01348"></a><span class="lineno"> 1348</span> </div><div class="line"><a name="l01349"></a><span class="lineno"> 1349</span> </div><div class="line"><a name="l01350"></a><span class="lineno"> 1350</span> <span class="keywordtype">void</span></div><div class="line"><a name="l01351"></a><span class="lineno"> 1351</span> __kmp_join_barrier(<span class="keywordtype">int</span> gtid)</div><div class="line"><a name="l01352"></a><span class="lineno"> 1352</span> {</div><div class="line"><a name="l01353"></a><span class="lineno"> 1353</span>  KMP_TIME_PARTITIONED_BLOCK(OMP_fork_join_barrier);</div><div class="line"><a name="l01354"></a><span class="lineno"> 1354</span>  KMP_SET_THREAD_STATE_BLOCK(FORK_JOIN_BARRIER);</div><div class="line"><a name="l01355"></a><span class="lineno"> 1355</span>  KMP_TIME_DEVELOPER_BLOCK(KMP_join_barrier);</div><div class="line"><a name="l01356"></a><span class="lineno"> 1356</span>  <span class="keyword">register</span> kmp_info_t *this_thr = __kmp_threads[gtid];</div><div class="line"><a name="l01357"></a><span class="lineno"> 1357</span>  <span class="keyword">register</span> kmp_team_t *team;</div><div class="line"><a name="l01358"></a><span class="lineno"> 1358</span>  <span class="keyword">register</span> kmp_uint nproc;</div><div class="line"><a name="l01359"></a><span class="lineno"> 1359</span>  kmp_info_t *master_thread;</div><div class="line"><a name="l01360"></a><span class="lineno"> 1360</span>  <span class="keywordtype">int</span> tid;</div><div class="line"><a name="l01361"></a><span class="lineno"> 1361</span> <span class="preprocessor">#ifdef KMP_DEBUG</span></div><div class="line"><a name="l01362"></a><span class="lineno"> 1362</span>  <span class="keywordtype">int</span> team_id;</div><div class="line"><a name="l01363"></a><span class="lineno"> 1363</span> <span class="preprocessor">#endif </span><span class="comment">/* KMP_DEBUG */</span><span class="preprocessor"></span></div><div class="line"><a name="l01364"></a><span class="lineno"> 1364</span> <span class="preprocessor">#if USE_ITT_BUILD</span></div><div class="line"><a name="l01365"></a><span class="lineno"> 1365</span>  <span class="keywordtype">void</span> *itt_sync_obj = NULL;</div><div class="line"><a name="l01366"></a><span class="lineno"> 1366</span> <span class="preprocessor"># if USE_ITT_NOTIFY</span></div><div class="line"><a name="l01367"></a><span class="lineno"> 1367</span>  <span class="keywordflow">if</span> (__itt_sync_create_ptr || KMP_ITT_DEBUG) <span class="comment">// Don't call routine without need</span></div><div class="line"><a name="l01368"></a><span class="lineno"> 1368</span>  <span class="comment">// Get object created at fork_barrier</span></div><div class="line"><a name="l01369"></a><span class="lineno"> 1369</span>  itt_sync_obj = __kmp_itt_barrier_object(gtid, bs_forkjoin_barrier);</div><div class="line"><a name="l01370"></a><span class="lineno"> 1370</span> <span class="preprocessor"># endif</span></div><div class="line"><a name="l01371"></a><span class="lineno"> 1371</span> <span class="preprocessor">#endif </span><span class="comment">/* USE_ITT_BUILD */</span><span class="preprocessor"></span></div><div class="line"><a name="l01372"></a><span class="lineno"> 1372</span>  KMP_MB();</div><div class="line"><a name="l01373"></a><span class="lineno"> 1373</span> </div><div class="line"><a name="l01374"></a><span class="lineno"> 1374</span>  <span class="comment">// Get current info</span></div><div class="line"><a name="l01375"></a><span class="lineno"> 1375</span>  team = this_thr->th.th_team;</div><div class="line"><a name="l01376"></a><span class="lineno"> 1376</span>  nproc = this_thr->th.th_team_nproc;</div><div class="line"><a name="l01377"></a><span class="lineno"> 1377</span>  KMP_DEBUG_ASSERT((<span class="keywordtype">int</span>)nproc == team->t.t_nproc);</div><div class="line"><a name="l01378"></a><span class="lineno"> 1378</span>  tid = __kmp_tid_from_gtid(gtid);</div><div class="line"><a name="l01379"></a><span class="lineno"> 1379</span> <span class="preprocessor">#ifdef KMP_DEBUG</span></div><div class="line"><a name="l01380"></a><span class="lineno"> 1380</span>  team_id = team->t.t_id;</div><div class="line"><a name="l01381"></a><span class="lineno"> 1381</span> <span class="preprocessor">#endif </span><span class="comment">/* KMP_DEBUG */</span><span class="preprocessor"></span></div><div class="line"><a name="l01382"></a><span class="lineno"> 1382</span>  master_thread = this_thr->th.th_team_master;</div><div class="line"><a name="l01383"></a><span class="lineno"> 1383</span> <span class="preprocessor">#ifdef KMP_DEBUG</span></div><div class="line"><a name="l01384"></a><span class="lineno"> 1384</span>  <span class="keywordflow">if</span> (master_thread != team->t.t_threads[0]) {</div><div class="line"><a name="l01385"></a><span class="lineno"> 1385</span>  __kmp_print_structure();</div><div class="line"><a name="l01386"></a><span class="lineno"> 1386</span>  }</div><div class="line"><a name="l01387"></a><span class="lineno"> 1387</span> <span class="preprocessor">#endif </span><span class="comment">/* KMP_DEBUG */</span><span class="preprocessor"></span></div><div class="line"><a name="l01388"></a><span class="lineno"> 1388</span>  KMP_DEBUG_ASSERT(master_thread == team->t.t_threads[0]);</div><div class="line"><a name="l01389"></a><span class="lineno"> 1389</span>  KMP_MB();</div><div class="line"><a name="l01390"></a><span class="lineno"> 1390</span> </div><div class="line"><a name="l01391"></a><span class="lineno"> 1391</span>  <span class="comment">// Verify state</span></div><div class="line"><a name="l01392"></a><span class="lineno"> 1392</span>  KMP_DEBUG_ASSERT(__kmp_threads && __kmp_threads[gtid]);</div><div class="line"><a name="l01393"></a><span class="lineno"> 1393</span>  KMP_DEBUG_ASSERT(TCR_PTR(this_thr->th.th_team));</div><div class="line"><a name="l01394"></a><span class="lineno"> 1394</span>  KMP_DEBUG_ASSERT(TCR_PTR(this_thr->th.th_root));</div><div class="line"><a name="l01395"></a><span class="lineno"> 1395</span>  KMP_DEBUG_ASSERT(this_thr == team->t.t_threads[tid]);</div><div class="line"><a name="l01396"></a><span class="lineno"> 1396</span>  KA_TRACE(10, (<span class="stringliteral">"__kmp_join_barrier: T#%d(%d:%d) arrived at join barrier\n"</span>, gtid, team_id, tid));</div><div class="line"><a name="l01397"></a><span class="lineno"> 1397</span> </div><div class="line"><a name="l01398"></a><span class="lineno"> 1398</span> <span class="preprocessor">#if OMPT_SUPPORT</span></div><div class="line"><a name="l01399"></a><span class="lineno"> 1399</span> <span class="preprocessor">#if OMPT_TRACE</span></div><div class="line"><a name="l01400"></a><span class="lineno"> 1400</span>  <span class="keywordflow">if</span> (ompt_enabled &&</div><div class="line"><a name="l01401"></a><span class="lineno"> 1401</span>  ompt_callbacks.ompt_callback(ompt_event_barrier_begin)) {</div><div class="line"><a name="l01402"></a><span class="lineno"> 1402</span>  ompt_callbacks.ompt_callback(ompt_event_barrier_begin)(</div><div class="line"><a name="l01403"></a><span class="lineno"> 1403</span>  team->t.ompt_team_info.parallel_id,</div><div class="line"><a name="l01404"></a><span class="lineno"> 1404</span>  team->t.t_implicit_task_taskdata[tid].ompt_task_info.task_id);</div><div class="line"><a name="l01405"></a><span class="lineno"> 1405</span>  }</div><div class="line"><a name="l01406"></a><span class="lineno"> 1406</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l01407"></a><span class="lineno"> 1407</span>  this_thr->th.ompt_thread_info.state = ompt_state_wait_barrier;</div><div class="line"><a name="l01408"></a><span class="lineno"> 1408</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l01409"></a><span class="lineno"> 1409</span> </div><div class="line"><a name="l01410"></a><span class="lineno"> 1410</span>  <span class="keywordflow">if</span> (__kmp_tasking_mode == tskm_extra_barrier) {</div><div class="line"><a name="l01411"></a><span class="lineno"> 1411</span>  __kmp_tasking_barrier(team, this_thr, gtid);</div><div class="line"><a name="l01412"></a><span class="lineno"> 1412</span>  KA_TRACE(10, (<span class="stringliteral">"__kmp_join_barrier: T#%d(%d:%d) past taking barrier\n"</span>, gtid, team_id, tid));</div><div class="line"><a name="l01413"></a><span class="lineno"> 1413</span>  }</div><div class="line"><a name="l01414"></a><span class="lineno"> 1414</span> <span class="preprocessor"># ifdef KMP_DEBUG</span></div><div class="line"><a name="l01415"></a><span class="lineno"> 1415</span>  <span class="keywordflow">if</span> (__kmp_tasking_mode != tskm_immediate_exec) {</div><div class="line"><a name="l01416"></a><span class="lineno"> 1416</span>  KA_TRACE(20, ( <span class="stringliteral">"__kmp_join_barrier: T#%d, old team = %d, old task_team = %p, th_task_team = %p\n"</span>,</div><div class="line"><a name="l01417"></a><span class="lineno"> 1417</span>  __kmp_gtid_from_thread(this_thr), team_id, team->t.t_task_team[this_thr->th.th_task_state],</div><div class="line"><a name="l01418"></a><span class="lineno"> 1418</span>  this_thr->th.th_task_team));</div><div class="line"><a name="l01419"></a><span class="lineno"> 1419</span>  KMP_DEBUG_ASSERT(this_thr->th.th_task_team == team->t.t_task_team[this_thr->th.th_task_state]);</div><div class="line"><a name="l01420"></a><span class="lineno"> 1420</span>  }</div><div class="line"><a name="l01421"></a><span class="lineno"> 1421</span> <span class="preprocessor"># endif </span><span class="comment">/* KMP_DEBUG */</span><span class="preprocessor"></span></div><div class="line"><a name="l01422"></a><span class="lineno"> 1422</span> </div><div class="line"><a name="l01423"></a><span class="lineno"> 1423</span>  <span class="comment">/* Copy the blocktime info to the thread, where __kmp_wait_template() can access it when the</span></div><div class="line"><a name="l01424"></a><span class="lineno"> 1424</span> <span class="comment"> team struct is not guaranteed to exist. Doing these loads causes a cache miss slows</span></div><div class="line"><a name="l01425"></a><span class="lineno"> 1425</span> <span class="comment"> down EPCC parallel by 2x. As a workaround, we do not perform the copy if blocktime=infinite,</span></div><div class="line"><a name="l01426"></a><span class="lineno"> 1426</span> <span class="comment"> since the values are not used by __kmp_wait_template() in that case. */</span></div><div class="line"><a name="l01427"></a><span class="lineno"> 1427</span>  <span class="keywordflow">if</span> (__kmp_dflt_blocktime != KMP_MAX_BLOCKTIME) {</div><div class="line"><a name="l01428"></a><span class="lineno"> 1428</span>  this_thr->th.th_team_bt_intervals = team->t.t_implicit_task_taskdata[tid].td_icvs.bt_intervals;</div><div class="line"><a name="l01429"></a><span class="lineno"> 1429</span>  this_thr->th.th_team_bt_set = team->t.t_implicit_task_taskdata[tid].td_icvs.bt_set;</div><div class="line"><a name="l01430"></a><span class="lineno"> 1430</span>  }</div><div class="line"><a name="l01431"></a><span class="lineno"> 1431</span> </div><div class="line"><a name="l01432"></a><span class="lineno"> 1432</span> <span class="preprocessor">#if USE_ITT_BUILD</span></div><div class="line"><a name="l01433"></a><span class="lineno"> 1433</span>  <span class="keywordflow">if</span> (__itt_sync_create_ptr || KMP_ITT_DEBUG)</div><div class="line"><a name="l01434"></a><span class="lineno"> 1434</span>  __kmp_itt_barrier_starting(gtid, itt_sync_obj);</div><div class="line"><a name="l01435"></a><span class="lineno"> 1435</span> <span class="preprocessor">#endif </span><span class="comment">/* USE_ITT_BUILD */</span><span class="preprocessor"></span></div><div class="line"><a name="l01436"></a><span class="lineno"> 1436</span> </div><div class="line"><a name="l01437"></a><span class="lineno"> 1437</span>  <span class="keywordflow">switch</span> (__kmp_barrier_gather_pattern[bs_forkjoin_barrier]) {</div><div class="line"><a name="l01438"></a><span class="lineno"> 1438</span>  <span class="keywordflow">case</span> bp_hyper_bar: {</div><div class="line"><a name="l01439"></a><span class="lineno"> 1439</span>  KMP_ASSERT(__kmp_barrier_gather_branch_bits[bs_forkjoin_barrier]);</div><div class="line"><a name="l01440"></a><span class="lineno"> 1440</span>  __kmp_hyper_barrier_gather(bs_forkjoin_barrier, this_thr, gtid, tid, NULL</div><div class="line"><a name="l01441"></a><span class="lineno"> 1441</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l01442"></a><span class="lineno"> 1442</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01443"></a><span class="lineno"> 1443</span>  }</div><div class="line"><a name="l01444"></a><span class="lineno"> 1444</span>  <span class="keywordflow">case</span> bp_hierarchical_bar: {</div><div class="line"><a name="l01445"></a><span class="lineno"> 1445</span>  __kmp_hierarchical_barrier_gather(bs_forkjoin_barrier, this_thr, gtid, tid, NULL</div><div class="line"><a name="l01446"></a><span class="lineno"> 1446</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l01447"></a><span class="lineno"> 1447</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01448"></a><span class="lineno"> 1448</span>  }</div><div class="line"><a name="l01449"></a><span class="lineno"> 1449</span>  <span class="keywordflow">case</span> bp_tree_bar: {</div><div class="line"><a name="l01450"></a><span class="lineno"> 1450</span>  KMP_ASSERT(__kmp_barrier_gather_branch_bits[bs_forkjoin_barrier]);</div><div class="line"><a name="l01451"></a><span class="lineno"> 1451</span>  __kmp_tree_barrier_gather(bs_forkjoin_barrier, this_thr, gtid, tid, NULL</div><div class="line"><a name="l01452"></a><span class="lineno"> 1452</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l01453"></a><span class="lineno"> 1453</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01454"></a><span class="lineno"> 1454</span>  }</div><div class="line"><a name="l01455"></a><span class="lineno"> 1455</span>  <span class="keywordflow">default</span>: {</div><div class="line"><a name="l01456"></a><span class="lineno"> 1456</span>  __kmp_linear_barrier_gather(bs_forkjoin_barrier, this_thr, gtid, tid, NULL</div><div class="line"><a name="l01457"></a><span class="lineno"> 1457</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l01458"></a><span class="lineno"> 1458</span>  }</div><div class="line"><a name="l01459"></a><span class="lineno"> 1459</span>  }</div><div class="line"><a name="l01460"></a><span class="lineno"> 1460</span> </div><div class="line"><a name="l01461"></a><span class="lineno"> 1461</span>  <span class="comment">/* From this point on, the team data structure may be deallocated at any time by the</span></div><div class="line"><a name="l01462"></a><span class="lineno"> 1462</span> <span class="comment"> master thread - it is unsafe to reference it in any of the worker threads. Any per-team</span></div><div class="line"><a name="l01463"></a><span class="lineno"> 1463</span> <span class="comment"> data items that need to be referenced before the end of the barrier should be moved to</span></div><div class="line"><a name="l01464"></a><span class="lineno"> 1464</span> <span class="comment"> the kmp_task_team_t structs. */</span></div><div class="line"><a name="l01465"></a><span class="lineno"> 1465</span>  <span class="keywordflow">if</span> (KMP_MASTER_TID(tid)) {</div><div class="line"><a name="l01466"></a><span class="lineno"> 1466</span>  <span class="keywordflow">if</span> (__kmp_tasking_mode != tskm_immediate_exec) {</div><div class="line"><a name="l01467"></a><span class="lineno"> 1467</span>  __kmp_task_team_wait(this_thr, team</div><div class="line"><a name="l01468"></a><span class="lineno"> 1468</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l01469"></a><span class="lineno"> 1469</span>  }</div><div class="line"><a name="l01470"></a><span class="lineno"> 1470</span> <span class="preprocessor">#if KMP_STATS_ENABLED</span></div><div class="line"><a name="l01471"></a><span class="lineno"> 1471</span>  <span class="comment">// Have master thread flag the workers to indicate they are now waiting for</span></div><div class="line"><a name="l01472"></a><span class="lineno"> 1472</span>  <span class="comment">// next parallel region, Also wake them up so they switch their timers to idle.</span></div><div class="line"><a name="l01473"></a><span class="lineno"> 1473</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<team->t.t_nproc; ++i) {</div><div class="line"><a name="l01474"></a><span class="lineno"> 1474</span>  kmp_info_t* team_thread = team->t.t_threads[i];</div><div class="line"><a name="l01475"></a><span class="lineno"> 1475</span>  <span class="keywordflow">if</span> (team_thread == this_thr)</div><div class="line"><a name="l01476"></a><span class="lineno"> 1476</span>  <span class="keywordflow">continue</span>;</div><div class="line"><a name="l01477"></a><span class="lineno"> 1477</span>  team_thread->th.th_stats->setIdleFlag();</div><div class="line"><a name="l01478"></a><span class="lineno"> 1478</span>  <span class="keywordflow">if</span> (__kmp_dflt_blocktime != KMP_MAX_BLOCKTIME && team_thread->th.th_sleep_loc != NULL)</div><div class="line"><a name="l01479"></a><span class="lineno"> 1479</span>  __kmp_null_resume_wrapper(__kmp_gtid_from_thread(team_thread), team_thread->th.th_sleep_loc);</div><div class="line"><a name="l01480"></a><span class="lineno"> 1480</span>  }</div><div class="line"><a name="l01481"></a><span class="lineno"> 1481</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l01482"></a><span class="lineno"> 1482</span> <span class="preprocessor">#if USE_ITT_BUILD</span></div><div class="line"><a name="l01483"></a><span class="lineno"> 1483</span>  <span class="keywordflow">if</span> (__itt_sync_create_ptr || KMP_ITT_DEBUG)</div><div class="line"><a name="l01484"></a><span class="lineno"> 1484</span>  __kmp_itt_barrier_middle(gtid, itt_sync_obj);</div><div class="line"><a name="l01485"></a><span class="lineno"> 1485</span> <span class="preprocessor">#endif </span><span class="comment">/* USE_ITT_BUILD */</span><span class="preprocessor"></span></div><div class="line"><a name="l01486"></a><span class="lineno"> 1486</span> </div><div class="line"><a name="l01487"></a><span class="lineno"> 1487</span> <span class="preprocessor"># if USE_ITT_BUILD && USE_ITT_NOTIFY</span></div><div class="line"><a name="l01488"></a><span class="lineno"> 1488</span>  <span class="comment">// Join barrier - report frame end</span></div><div class="line"><a name="l01489"></a><span class="lineno"> 1489</span>  <span class="keywordflow">if</span> ((__itt_frame_submit_v3_ptr || KMP_ITT_DEBUG) && __kmp_forkjoin_frames_mode &&</div><div class="line"><a name="l01490"></a><span class="lineno"> 1490</span> #<span class="keywordflow">if</span> OMP_40_ENABLED</div><div class="line"><a name="l01491"></a><span class="lineno"> 1491</span>  this_thr->th.th_teams_microtask == NULL &&</div><div class="line"><a name="l01492"></a><span class="lineno"> 1492</span> #endif</div><div class="line"><a name="l01493"></a><span class="lineno"> 1493</span>  team->t.t_active_level == 1)</div><div class="line"><a name="l01494"></a><span class="lineno"> 1494</span>  {</div><div class="line"><a name="l01495"></a><span class="lineno"> 1495</span>  kmp_uint64 cur_time = __itt_get_timestamp();</div><div class="line"><a name="l01496"></a><span class="lineno"> 1496</span>  <a class="code" href="structident.html">ident_t</a> * loc = team->t.t_ident;</div><div class="line"><a name="l01497"></a><span class="lineno"> 1497</span>  kmp_info_t **other_threads = team->t.t_threads;</div><div class="line"><a name="l01498"></a><span class="lineno"> 1498</span>  <span class="keywordtype">int</span> nproc = this_thr->th.th_team_nproc;</div><div class="line"><a name="l01499"></a><span class="lineno"> 1499</span>  <span class="keywordtype">int</span> i;</div><div class="line"><a name="l01500"></a><span class="lineno"> 1500</span>  <span class="keywordflow">switch</span>(__kmp_forkjoin_frames_mode) {</div><div class="line"><a name="l01501"></a><span class="lineno"> 1501</span>  <span class="keywordflow">case</span> 1:</div><div class="line"><a name="l01502"></a><span class="lineno"> 1502</span>  __kmp_itt_frame_submit(gtid, this_thr->th.th_frame_time, cur_time, 0, loc, nproc);</div><div class="line"><a name="l01503"></a><span class="lineno"> 1503</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01504"></a><span class="lineno"> 1504</span>  <span class="keywordflow">case</span> 2:</div><div class="line"><a name="l01505"></a><span class="lineno"> 1505</span>  __kmp_itt_frame_submit(gtid, this_thr->th.th_bar_min_time, cur_time, 1, loc, nproc);</div><div class="line"><a name="l01506"></a><span class="lineno"> 1506</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01507"></a><span class="lineno"> 1507</span>  <span class="keywordflow">case</span> 3:</div><div class="line"><a name="l01508"></a><span class="lineno"> 1508</span>  <span class="keywordflow">if</span>( __itt_metadata_add_ptr ) {</div><div class="line"><a name="l01509"></a><span class="lineno"> 1509</span>  <span class="comment">// Initialize with master's wait time</span></div><div class="line"><a name="l01510"></a><span class="lineno"> 1510</span>  kmp_uint64 delta = cur_time - this_thr->th.th_bar_arrive_time;</div><div class="line"><a name="l01511"></a><span class="lineno"> 1511</span>  <span class="comment">// Set arrive time to zero to be able to check it in __kmp_invoke_task(); the same is done inside the loop below</span></div><div class="line"><a name="l01512"></a><span class="lineno"> 1512</span>  this_thr->th.th_bar_arrive_time = 0;</div><div class="line"><a name="l01513"></a><span class="lineno"> 1513</span>  <span class="keywordflow">for</span> (i=1; i<nproc; ++i) {</div><div class="line"><a name="l01514"></a><span class="lineno"> 1514</span>  delta += ( cur_time - other_threads[i]->th.th_bar_arrive_time );</div><div class="line"><a name="l01515"></a><span class="lineno"> 1515</span>  other_threads[i]->th.th_bar_arrive_time = 0;</div><div class="line"><a name="l01516"></a><span class="lineno"> 1516</span>  }</div><div class="line"><a name="l01517"></a><span class="lineno"> 1517</span>  __kmp_itt_metadata_imbalance(gtid, this_thr->th.th_frame_time, cur_time, delta, 0);</div><div class="line"><a name="l01518"></a><span class="lineno"> 1518</span>  }</div><div class="line"><a name="l01519"></a><span class="lineno"> 1519</span>  __kmp_itt_frame_submit(gtid, this_thr->th.th_frame_time, cur_time, 0, loc, nproc);</div><div class="line"><a name="l01520"></a><span class="lineno"> 1520</span>  this_thr->th.th_frame_time = cur_time;</div><div class="line"><a name="l01521"></a><span class="lineno"> 1521</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01522"></a><span class="lineno"> 1522</span>  }</div><div class="line"><a name="l01523"></a><span class="lineno"> 1523</span>  }</div><div class="line"><a name="l01524"></a><span class="lineno"> 1524</span> <span class="preprocessor"># endif </span><span class="comment">/* USE_ITT_BUILD */</span><span class="preprocessor"></span></div><div class="line"><a name="l01525"></a><span class="lineno"> 1525</span>  }</div><div class="line"><a name="l01526"></a><span class="lineno"> 1526</span> <span class="preprocessor">#if USE_ITT_BUILD</span></div><div class="line"><a name="l01527"></a><span class="lineno"> 1527</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l01528"></a><span class="lineno"> 1528</span>  <span class="keywordflow">if</span> (__itt_sync_create_ptr || KMP_ITT_DEBUG)</div><div class="line"><a name="l01529"></a><span class="lineno"> 1529</span>  __kmp_itt_barrier_middle(gtid, itt_sync_obj);</div><div class="line"><a name="l01530"></a><span class="lineno"> 1530</span>  }</div><div class="line"><a name="l01531"></a><span class="lineno"> 1531</span> <span class="preprocessor">#endif </span><span class="comment">/* USE_ITT_BUILD */</span><span class="preprocessor"></span></div><div class="line"><a name="l01532"></a><span class="lineno"> 1532</span> </div><div class="line"><a name="l01533"></a><span class="lineno"> 1533</span> <span class="preprocessor">#if KMP_DEBUG</span></div><div class="line"><a name="l01534"></a><span class="lineno"> 1534</span>  <span class="keywordflow">if</span> (KMP_MASTER_TID(tid)) {</div><div class="line"><a name="l01535"></a><span class="lineno"> 1535</span>  KA_TRACE(15, (<span class="stringliteral">"__kmp_join_barrier: T#%d(%d:%d) says all %d team threads arrived\n"</span>,</div><div class="line"><a name="l01536"></a><span class="lineno"> 1536</span>  gtid, team_id, tid, nproc));</div><div class="line"><a name="l01537"></a><span class="lineno"> 1537</span>  }</div><div class="line"><a name="l01538"></a><span class="lineno"> 1538</span> <span class="preprocessor">#endif </span><span class="comment">/* KMP_DEBUG */</span><span class="preprocessor"></span></div><div class="line"><a name="l01539"></a><span class="lineno"> 1539</span> </div><div class="line"><a name="l01540"></a><span class="lineno"> 1540</span>  <span class="comment">// TODO now, mark worker threads as done so they may be disbanded</span></div><div class="line"><a name="l01541"></a><span class="lineno"> 1541</span>  KMP_MB(); <span class="comment">// Flush all pending memory write invalidates.</span></div><div class="line"><a name="l01542"></a><span class="lineno"> 1542</span>  KA_TRACE(10, (<span class="stringliteral">"__kmp_join_barrier: T#%d(%d:%d) leaving\n"</span>, gtid, team_id, tid));</div><div class="line"><a name="l01543"></a><span class="lineno"> 1543</span> </div><div class="line"><a name="l01544"></a><span class="lineno"> 1544</span> <span class="preprocessor">#if OMPT_SUPPORT</span></div><div class="line"><a name="l01545"></a><span class="lineno"> 1545</span>  <span class="keywordflow">if</span> (ompt_enabled) {</div><div class="line"><a name="l01546"></a><span class="lineno"> 1546</span> <span class="preprocessor">#if OMPT_BLAME</span></div><div class="line"><a name="l01547"></a><span class="lineno"> 1547</span>  <span class="keywordflow">if</span> (ompt_callbacks.ompt_callback(ompt_event_barrier_end)) {</div><div class="line"><a name="l01548"></a><span class="lineno"> 1548</span>  ompt_callbacks.ompt_callback(ompt_event_barrier_end)(</div><div class="line"><a name="l01549"></a><span class="lineno"> 1549</span>  team->t.ompt_team_info.parallel_id,</div><div class="line"><a name="l01550"></a><span class="lineno"> 1550</span>  team->t.t_implicit_task_taskdata[tid].ompt_task_info.task_id);</div><div class="line"><a name="l01551"></a><span class="lineno"> 1551</span>  }</div><div class="line"><a name="l01552"></a><span class="lineno"> 1552</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l01553"></a><span class="lineno"> 1553</span> </div><div class="line"><a name="l01554"></a><span class="lineno"> 1554</span>  <span class="comment">// return to default state</span></div><div class="line"><a name="l01555"></a><span class="lineno"> 1555</span>  this_thr->th.ompt_thread_info.state = ompt_state_overhead;</div><div class="line"><a name="l01556"></a><span class="lineno"> 1556</span>  }</div><div class="line"><a name="l01557"></a><span class="lineno"> 1557</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l01558"></a><span class="lineno"> 1558</span> }</div><div class="line"><a name="l01559"></a><span class="lineno"> 1559</span> </div><div class="line"><a name="l01560"></a><span class="lineno"> 1560</span> </div><div class="line"><a name="l01561"></a><span class="lineno"> 1561</span> <span class="comment">// TODO release worker threads' fork barriers as we are ready instead of all at once</span></div><div class="line"><a name="l01562"></a><span class="lineno"> 1562</span> <span class="keywordtype">void</span></div><div class="line"><a name="l01563"></a><span class="lineno"> 1563</span> __kmp_fork_barrier(<span class="keywordtype">int</span> gtid, <span class="keywordtype">int</span> tid)</div><div class="line"><a name="l01564"></a><span class="lineno"> 1564</span> {</div><div class="line"><a name="l01565"></a><span class="lineno"> 1565</span>  KMP_TIME_PARTITIONED_BLOCK(OMP_fork_join_barrier);</div><div class="line"><a name="l01566"></a><span class="lineno"> 1566</span>  KMP_SET_THREAD_STATE_BLOCK(FORK_JOIN_BARRIER);</div><div class="line"><a name="l01567"></a><span class="lineno"> 1567</span>  KMP_TIME_DEVELOPER_BLOCK(KMP_fork_barrier);</div><div class="line"><a name="l01568"></a><span class="lineno"> 1568</span>  kmp_info_t *this_thr = __kmp_threads[gtid];</div><div class="line"><a name="l01569"></a><span class="lineno"> 1569</span>  kmp_team_t *team = (tid == 0) ? this_thr->th.th_team : NULL;</div><div class="line"><a name="l01570"></a><span class="lineno"> 1570</span> #<span class="keywordflow">if</span> USE_ITT_BUILD</div><div class="line"><a name="l01571"></a><span class="lineno"> 1571</span>  <span class="keywordtype">void</span> * itt_sync_obj = NULL;</div><div class="line"><a name="l01572"></a><span class="lineno"> 1572</span> #endif <span class="comment">/* USE_ITT_BUILD */</span></div><div class="line"><a name="l01573"></a><span class="lineno"> 1573</span> </div><div class="line"><a name="l01574"></a><span class="lineno"> 1574</span>  KA_TRACE(10, (<span class="stringliteral">"__kmp_fork_barrier: T#%d(%d:%d) has arrived\n"</span>,</div><div class="line"><a name="l01575"></a><span class="lineno"> 1575</span>  gtid, (team != NULL) ? team->t.t_id : -1, tid));</div><div class="line"><a name="l01576"></a><span class="lineno"> 1576</span> </div><div class="line"><a name="l01577"></a><span class="lineno"> 1577</span>  <span class="comment">// th_team pointer only valid for master thread here</span></div><div class="line"><a name="l01578"></a><span class="lineno"> 1578</span>  <span class="keywordflow">if</span> (KMP_MASTER_TID(tid)) {</div><div class="line"><a name="l01579"></a><span class="lineno"> 1579</span> <span class="preprocessor">#if USE_ITT_BUILD && USE_ITT_NOTIFY</span></div><div class="line"><a name="l01580"></a><span class="lineno"> 1580</span>  <span class="keywordflow">if</span> (__itt_sync_create_ptr || KMP_ITT_DEBUG) {</div><div class="line"><a name="l01581"></a><span class="lineno"> 1581</span>  <span class="comment">// Create itt barrier object</span></div><div class="line"><a name="l01582"></a><span class="lineno"> 1582</span>  itt_sync_obj = __kmp_itt_barrier_object(gtid, bs_forkjoin_barrier, 1);</div><div class="line"><a name="l01583"></a><span class="lineno"> 1583</span>  __kmp_itt_barrier_middle(gtid, itt_sync_obj); <span class="comment">// Call acquired/releasing</span></div><div class="line"><a name="l01584"></a><span class="lineno"> 1584</span>  }</div><div class="line"><a name="l01585"></a><span class="lineno"> 1585</span> <span class="preprocessor">#endif </span><span class="comment">/* USE_ITT_BUILD && USE_ITT_NOTIFY */</span><span class="preprocessor"></span></div><div class="line"><a name="l01586"></a><span class="lineno"> 1586</span> </div><div class="line"><a name="l01587"></a><span class="lineno"> 1587</span> <span class="preprocessor">#ifdef KMP_DEBUG</span></div><div class="line"><a name="l01588"></a><span class="lineno"> 1588</span>  <span class="keyword">register</span> kmp_info_t **other_threads = team->t.t_threads;</div><div class="line"><a name="l01589"></a><span class="lineno"> 1589</span>  <span class="keyword">register</span> <span class="keywordtype">int</span> i;</div><div class="line"><a name="l01590"></a><span class="lineno"> 1590</span> </div><div class="line"><a name="l01591"></a><span class="lineno"> 1591</span>  <span class="comment">// Verify state</span></div><div class="line"><a name="l01592"></a><span class="lineno"> 1592</span>  KMP_MB();</div><div class="line"><a name="l01593"></a><span class="lineno"> 1593</span> </div><div class="line"><a name="l01594"></a><span class="lineno"> 1594</span>  <span class="keywordflow">for</span>(i=1; i<team->t.t_nproc; ++i) {</div><div class="line"><a name="l01595"></a><span class="lineno"> 1595</span>  KA_TRACE(500, (<span class="stringliteral">"__kmp_fork_barrier: T#%d(%d:0) checking T#%d(%d:%d) fork go == %u.\n"</span>,</div><div class="line"><a name="l01596"></a><span class="lineno"> 1596</span>  gtid, team->t.t_id, other_threads[i]->th.th_info.ds.ds_gtid,</div><div class="line"><a name="l01597"></a><span class="lineno"> 1597</span>  team->t.t_id, other_threads[i]->th.th_info.ds.ds_tid,</div><div class="line"><a name="l01598"></a><span class="lineno"> 1598</span>  other_threads[i]->th.th_bar[bs_forkjoin_barrier].bb.b_go));</div><div class="line"><a name="l01599"></a><span class="lineno"> 1599</span>  KMP_DEBUG_ASSERT((TCR_4(other_threads[i]->th.th_bar[bs_forkjoin_barrier].bb.b_go)</div><div class="line"><a name="l01600"></a><span class="lineno"> 1600</span>  & ~(KMP_BARRIER_SLEEP_STATE))</div><div class="line"><a name="l01601"></a><span class="lineno"> 1601</span>  == KMP_INIT_BARRIER_STATE);</div><div class="line"><a name="l01602"></a><span class="lineno"> 1602</span>  KMP_DEBUG_ASSERT(other_threads[i]->th.th_team == team);</div><div class="line"><a name="l01603"></a><span class="lineno"> 1603</span>  }</div><div class="line"><a name="l01604"></a><span class="lineno"> 1604</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l01605"></a><span class="lineno"> 1605</span> </div><div class="line"><a name="l01606"></a><span class="lineno"> 1606</span>  <span class="keywordflow">if</span> (__kmp_tasking_mode != tskm_immediate_exec) {</div><div class="line"><a name="l01607"></a><span class="lineno"> 1607</span>  __kmp_task_team_setup(this_thr, team, 0); <span class="comment">// 0 indicates setup current task team if nthreads > 1</span></div><div class="line"><a name="l01608"></a><span class="lineno"> 1608</span>  }</div><div class="line"><a name="l01609"></a><span class="lineno"> 1609</span> </div><div class="line"><a name="l01610"></a><span class="lineno"> 1610</span>  <span class="comment">/* The master thread may have changed its blocktime between the join barrier and the</span></div><div class="line"><a name="l01611"></a><span class="lineno"> 1611</span> <span class="comment"> fork barrier. Copy the blocktime info to the thread, where __kmp_wait_template() can</span></div><div class="line"><a name="l01612"></a><span class="lineno"> 1612</span> <span class="comment"> access it when the team struct is not guaranteed to exist. */</span></div><div class="line"><a name="l01613"></a><span class="lineno"> 1613</span>  <span class="comment">// See note about the corresponding code in __kmp_join_barrier() being performance-critical</span></div><div class="line"><a name="l01614"></a><span class="lineno"> 1614</span>  <span class="keywordflow">if</span> (__kmp_dflt_blocktime != KMP_MAX_BLOCKTIME) {</div><div class="line"><a name="l01615"></a><span class="lineno"> 1615</span>  this_thr->th.th_team_bt_intervals = team->t.t_implicit_task_taskdata[tid].td_icvs.bt_intervals;</div><div class="line"><a name="l01616"></a><span class="lineno"> 1616</span>  this_thr->th.th_team_bt_set = team->t.t_implicit_task_taskdata[tid].td_icvs.bt_set;</div><div class="line"><a name="l01617"></a><span class="lineno"> 1617</span>  }</div><div class="line"><a name="l01618"></a><span class="lineno"> 1618</span>  } <span class="comment">// master</span></div><div class="line"><a name="l01619"></a><span class="lineno"> 1619</span> </div><div class="line"><a name="l01620"></a><span class="lineno"> 1620</span>  <span class="keywordflow">switch</span> (__kmp_barrier_release_pattern[bs_forkjoin_barrier]) {</div><div class="line"><a name="l01621"></a><span class="lineno"> 1621</span>  <span class="keywordflow">case</span> bp_hyper_bar: {</div><div class="line"><a name="l01622"></a><span class="lineno"> 1622</span>  KMP_ASSERT(__kmp_barrier_release_branch_bits[bs_forkjoin_barrier]);</div><div class="line"><a name="l01623"></a><span class="lineno"> 1623</span>  __kmp_hyper_barrier_release(bs_forkjoin_barrier, this_thr, gtid, tid, TRUE</div><div class="line"><a name="l01624"></a><span class="lineno"> 1624</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l01625"></a><span class="lineno"> 1625</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01626"></a><span class="lineno"> 1626</span>  }</div><div class="line"><a name="l01627"></a><span class="lineno"> 1627</span>  <span class="keywordflow">case</span> bp_hierarchical_bar: {</div><div class="line"><a name="l01628"></a><span class="lineno"> 1628</span>  __kmp_hierarchical_barrier_release(bs_forkjoin_barrier, this_thr, gtid, tid, TRUE</div><div class="line"><a name="l01629"></a><span class="lineno"> 1629</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l01630"></a><span class="lineno"> 1630</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01631"></a><span class="lineno"> 1631</span>  }</div><div class="line"><a name="l01632"></a><span class="lineno"> 1632</span>  <span class="keywordflow">case</span> bp_tree_bar: {</div><div class="line"><a name="l01633"></a><span class="lineno"> 1633</span>  KMP_ASSERT(__kmp_barrier_release_branch_bits[bs_forkjoin_barrier]);</div><div class="line"><a name="l01634"></a><span class="lineno"> 1634</span>  __kmp_tree_barrier_release(bs_forkjoin_barrier, this_thr, gtid, tid, TRUE</div><div class="line"><a name="l01635"></a><span class="lineno"> 1635</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l01636"></a><span class="lineno"> 1636</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01637"></a><span class="lineno"> 1637</span>  }</div><div class="line"><a name="l01638"></a><span class="lineno"> 1638</span>  <span class="keywordflow">default</span>: {</div><div class="line"><a name="l01639"></a><span class="lineno"> 1639</span>  __kmp_linear_barrier_release(bs_forkjoin_barrier, this_thr, gtid, tid, TRUE</div><div class="line"><a name="l01640"></a><span class="lineno"> 1640</span>  USE_ITT_BUILD_ARG(itt_sync_obj) );</div><div class="line"><a name="l01641"></a><span class="lineno"> 1641</span>  }</div><div class="line"><a name="l01642"></a><span class="lineno"> 1642</span>  }</div><div class="line"><a name="l01643"></a><span class="lineno"> 1643</span> </div><div class="line"><a name="l01644"></a><span class="lineno"> 1644</span>  <span class="comment">// Early exit for reaping threads releasing forkjoin barrier</span></div><div class="line"><a name="l01645"></a><span class="lineno"> 1645</span>  <span class="keywordflow">if</span> (TCR_4(__kmp_global.g.g_done)) {</div><div class="line"><a name="l01646"></a><span class="lineno"> 1646</span>  this_thr->th.th_task_team = NULL;</div><div class="line"><a name="l01647"></a><span class="lineno"> 1647</span> </div><div class="line"><a name="l01648"></a><span class="lineno"> 1648</span> <span class="preprocessor">#if USE_ITT_BUILD && USE_ITT_NOTIFY</span></div><div class="line"><a name="l01649"></a><span class="lineno"> 1649</span>  <span class="keywordflow">if</span> (__itt_sync_create_ptr || KMP_ITT_DEBUG) {</div><div class="line"><a name="l01650"></a><span class="lineno"> 1650</span>  <span class="keywordflow">if</span> (!KMP_MASTER_TID(tid)) {</div><div class="line"><a name="l01651"></a><span class="lineno"> 1651</span>  itt_sync_obj = __kmp_itt_barrier_object(gtid, bs_forkjoin_barrier);</div><div class="line"><a name="l01652"></a><span class="lineno"> 1652</span>  <span class="keywordflow">if</span> (itt_sync_obj)</div><div class="line"><a name="l01653"></a><span class="lineno"> 1653</span>  __kmp_itt_barrier_finished(gtid, itt_sync_obj);</div><div class="line"><a name="l01654"></a><span class="lineno"> 1654</span>  }</div><div class="line"><a name="l01655"></a><span class="lineno"> 1655</span>  }</div><div class="line"><a name="l01656"></a><span class="lineno"> 1656</span> <span class="preprocessor">#endif </span><span class="comment">/* USE_ITT_BUILD && USE_ITT_NOTIFY */</span><span class="preprocessor"></span></div><div class="line"><a name="l01657"></a><span class="lineno"> 1657</span>  KA_TRACE(10, (<span class="stringliteral">"__kmp_fork_barrier: T#%d is leaving early\n"</span>, gtid));</div><div class="line"><a name="l01658"></a><span class="lineno"> 1658</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01659"></a><span class="lineno"> 1659</span>  }</div><div class="line"><a name="l01660"></a><span class="lineno"> 1660</span> </div><div class="line"><a name="l01661"></a><span class="lineno"> 1661</span>  <span class="comment">/* We can now assume that a valid team structure has been allocated by the master and</span></div><div class="line"><a name="l01662"></a><span class="lineno"> 1662</span> <span class="comment"> propagated to all worker threads. The current thread, however, may not be part of the</span></div><div class="line"><a name="l01663"></a><span class="lineno"> 1663</span> <span class="comment"> team, so we can't blindly assume that the team pointer is non-null. */</span></div><div class="line"><a name="l01664"></a><span class="lineno"> 1664</span>  team = (kmp_team_t *)TCR_PTR(this_thr->th.th_team);</div><div class="line"><a name="l01665"></a><span class="lineno"> 1665</span>  KMP_DEBUG_ASSERT(team != NULL);</div><div class="line"><a name="l01666"></a><span class="lineno"> 1666</span>  tid = __kmp_tid_from_gtid(gtid);</div><div class="line"><a name="l01667"></a><span class="lineno"> 1667</span> </div><div class="line"><a name="l01668"></a><span class="lineno"> 1668</span> </div><div class="line"><a name="l01669"></a><span class="lineno"> 1669</span> <span class="preprocessor">#if KMP_BARRIER_ICV_PULL</span></div><div class="line"><a name="l01670"></a><span class="lineno"> 1670</span>  <span class="comment">/* Master thread's copy of the ICVs was set up on the implicit taskdata in</span></div><div class="line"><a name="l01671"></a><span class="lineno"> 1671</span> <span class="comment"> __kmp_reinitialize_team. __kmp_fork_call() assumes the master thread's implicit task has</span></div><div class="line"><a name="l01672"></a><span class="lineno"> 1672</span> <span class="comment"> this data before this function is called. We cannot modify __kmp_fork_call() to look at</span></div><div class="line"><a name="l01673"></a><span class="lineno"> 1673</span> <span class="comment"> the fixed ICVs in the master's thread struct, because it is not always the case that the</span></div><div class="line"><a name="l01674"></a><span class="lineno"> 1674</span> <span class="comment"> threads arrays have been allocated when __kmp_fork_call() is executed. */</span></div><div class="line"><a name="l01675"></a><span class="lineno"> 1675</span>  {</div><div class="line"><a name="l01676"></a><span class="lineno"> 1676</span>  KMP_TIME_DEVELOPER_BLOCK(USER_icv_copy);</div><div class="line"><a name="l01677"></a><span class="lineno"> 1677</span>  <span class="keywordflow">if</span> (!KMP_MASTER_TID(tid)) { <span class="comment">// master thread already has ICVs</span></div><div class="line"><a name="l01678"></a><span class="lineno"> 1678</span>  <span class="comment">// Copy the initial ICVs from the master's thread struct to the implicit task for this tid.</span></div><div class="line"><a name="l01679"></a><span class="lineno"> 1679</span>  KA_TRACE(10, (<span class="stringliteral">"__kmp_fork_barrier: T#%d(%d) is PULLing ICVs\n"</span>, gtid, tid));</div><div class="line"><a name="l01680"></a><span class="lineno"> 1680</span>  __kmp_init_implicit_task(team->t.t_ident, team->t.t_threads[tid], team, tid, FALSE);</div><div class="line"><a name="l01681"></a><span class="lineno"> 1681</span>  copy_icvs(&team->t.t_implicit_task_taskdata[tid].td_icvs,</div><div class="line"><a name="l01682"></a><span class="lineno"> 1682</span>  &team->t.t_threads[0]->th.th_bar[bs_forkjoin_barrier].bb.th_fixed_icvs);</div><div class="line"><a name="l01683"></a><span class="lineno"> 1683</span>  }</div><div class="line"><a name="l01684"></a><span class="lineno"> 1684</span>  }</div><div class="line"><a name="l01685"></a><span class="lineno"> 1685</span> <span class="preprocessor">#endif // KMP_BARRIER_ICV_PULL</span></div><div class="line"><a name="l01686"></a><span class="lineno"> 1686</span> </div><div class="line"><a name="l01687"></a><span class="lineno"> 1687</span>  <span class="keywordflow">if</span> (__kmp_tasking_mode != tskm_immediate_exec) {</div><div class="line"><a name="l01688"></a><span class="lineno"> 1688</span>  __kmp_task_team_sync(this_thr, team);</div><div class="line"><a name="l01689"></a><span class="lineno"> 1689</span>  }</div><div class="line"><a name="l01690"></a><span class="lineno"> 1690</span> </div><div class="line"><a name="l01691"></a><span class="lineno"> 1691</span> <span class="preprocessor">#if OMP_40_ENABLED && KMP_AFFINITY_SUPPORTED</span></div><div class="line"><a name="l01692"></a><span class="lineno"> 1692</span>  kmp_proc_bind_t proc_bind = team->t.t_proc_bind;</div><div class="line"><a name="l01693"></a><span class="lineno"> 1693</span>  <span class="keywordflow">if</span> (proc_bind == proc_bind_intel) {</div><div class="line"><a name="l01694"></a><span class="lineno"> 1694</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l01695"></a><span class="lineno"> 1695</span> <span class="preprocessor">#if KMP_AFFINITY_SUPPORTED</span></div><div class="line"><a name="l01696"></a><span class="lineno"> 1696</span>  <span class="comment">// Call dynamic affinity settings</span></div><div class="line"><a name="l01697"></a><span class="lineno"> 1697</span>  <span class="keywordflow">if</span>(__kmp_affinity_type == affinity_balanced && team->t.t_size_changed) {</div><div class="line"><a name="l01698"></a><span class="lineno"> 1698</span>  __kmp_balanced_affinity(tid, team->t.t_nproc);</div><div class="line"><a name="l01699"></a><span class="lineno"> 1699</span>  }</div><div class="line"><a name="l01700"></a><span class="lineno"> 1700</span> <span class="preprocessor">#endif // KMP_AFFINITY_SUPPORTED</span></div><div class="line"><a name="l01701"></a><span class="lineno"> 1701</span> <span class="preprocessor">#if OMP_40_ENABLED && KMP_AFFINITY_SUPPORTED</span></div><div class="line"><a name="l01702"></a><span class="lineno"> 1702</span>  }</div><div class="line"><a name="l01703"></a><span class="lineno"> 1703</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (proc_bind != proc_bind_false) {</div><div class="line"><a name="l01704"></a><span class="lineno"> 1704</span>  <span class="keywordflow">if</span> (this_thr->th.th_new_place == this_thr->th.th_current_place) {</div><div class="line"><a name="l01705"></a><span class="lineno"> 1705</span>  KA_TRACE(100, (<span class="stringliteral">"__kmp_fork_barrier: T#%d already in correct place %d\n"</span>,</div><div class="line"><a name="l01706"></a><span class="lineno"> 1706</span>  __kmp_gtid_from_thread(this_thr), this_thr->th.th_current_place));</div><div class="line"><a name="l01707"></a><span class="lineno"> 1707</span>  }</div><div class="line"><a name="l01708"></a><span class="lineno"> 1708</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l01709"></a><span class="lineno"> 1709</span>  __kmp_affinity_set_place(gtid);</div><div class="line"><a name="l01710"></a><span class="lineno"> 1710</span>  }</div><div class="line"><a name="l01711"></a><span class="lineno"> 1711</span>  }</div><div class="line"><a name="l01712"></a><span class="lineno"> 1712</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l01713"></a><span class="lineno"> 1713</span> </div><div class="line"><a name="l01714"></a><span class="lineno"> 1714</span> <span class="preprocessor">#if USE_ITT_BUILD && USE_ITT_NOTIFY</span></div><div class="line"><a name="l01715"></a><span class="lineno"> 1715</span>  <span class="keywordflow">if</span> (__itt_sync_create_ptr || KMP_ITT_DEBUG) {</div><div class="line"><a name="l01716"></a><span class="lineno"> 1716</span>  <span class="keywordflow">if</span> (!KMP_MASTER_TID(tid)) {</div><div class="line"><a name="l01717"></a><span class="lineno"> 1717</span>  <span class="comment">// Get correct barrier object</span></div><div class="line"><a name="l01718"></a><span class="lineno"> 1718</span>  itt_sync_obj = __kmp_itt_barrier_object(gtid, bs_forkjoin_barrier);</div><div class="line"><a name="l01719"></a><span class="lineno"> 1719</span>  __kmp_itt_barrier_finished(gtid, itt_sync_obj); <span class="comment">// Workers call acquired</span></div><div class="line"><a name="l01720"></a><span class="lineno"> 1720</span>  } <span class="comment">// (prepare called inside barrier_release)</span></div><div class="line"><a name="l01721"></a><span class="lineno"> 1721</span>  }</div><div class="line"><a name="l01722"></a><span class="lineno"> 1722</span> <span class="preprocessor">#endif </span><span class="comment">/* USE_ITT_BUILD && USE_ITT_NOTIFY */</span><span class="preprocessor"></span></div><div class="line"><a name="l01723"></a><span class="lineno"> 1723</span>  KA_TRACE(10, (<span class="stringliteral">"__kmp_fork_barrier: T#%d(%d:%d) is leaving\n"</span>, gtid, team->t.t_id, tid));</div><div class="line"><a name="l01724"></a><span class="lineno"> 1724</span> }</div><div class="line"><a name="l01725"></a><span class="lineno"> 1725</span> </div><div class="line"><a name="l01726"></a><span class="lineno"> 1726</span> </div><div class="line"><a name="l01727"></a><span class="lineno"> 1727</span> <span class="keywordtype">void</span></div><div class="line"><a name="l01728"></a><span class="lineno"> 1728</span> __kmp_setup_icv_copy(kmp_team_t *team, <span class="keywordtype">int</span> new_nproc, kmp_internal_control_t *new_icvs, <a class="code" href="structident.html">ident_t</a> *loc )</div><div class="line"><a name="l01729"></a><span class="lineno"> 1729</span> {</div><div class="line"><a name="l01730"></a><span class="lineno"> 1730</span>  KMP_TIME_DEVELOPER_BLOCK(KMP_setup_icv_copy);</div><div class="line"><a name="l01731"></a><span class="lineno"> 1731</span> </div><div class="line"><a name="l01732"></a><span class="lineno"> 1732</span>  KMP_DEBUG_ASSERT(team && new_nproc && new_icvs);</div><div class="line"><a name="l01733"></a><span class="lineno"> 1733</span>  KMP_DEBUG_ASSERT((!TCR_4(__kmp_init_parallel)) || new_icvs->nproc);</div><div class="line"><a name="l01734"></a><span class="lineno"> 1734</span> </div><div class="line"><a name="l01735"></a><span class="lineno"> 1735</span>  <span class="comment">/* Master thread's copy of the ICVs was set up on the implicit taskdata in</span></div><div class="line"><a name="l01736"></a><span class="lineno"> 1736</span> <span class="comment"> __kmp_reinitialize_team. __kmp_fork_call() assumes the master thread's implicit task has</span></div><div class="line"><a name="l01737"></a><span class="lineno"> 1737</span> <span class="comment"> this data before this function is called. */</span></div><div class="line"><a name="l01738"></a><span class="lineno"> 1738</span> <span class="preprocessor">#if KMP_BARRIER_ICV_PULL</span></div><div class="line"><a name="l01739"></a><span class="lineno"> 1739</span>  <span class="comment">/* Copy ICVs to master's thread structure into th_fixed_icvs (which remains untouched), where</span></div><div class="line"><a name="l01740"></a><span class="lineno"> 1740</span> <span class="comment"> all of the worker threads can access them and make their own copies after the barrier. */</span></div><div class="line"><a name="l01741"></a><span class="lineno"> 1741</span>  KMP_DEBUG_ASSERT(team->t.t_threads[0]); <span class="comment">// The threads arrays should be allocated at this point</span></div><div class="line"><a name="l01742"></a><span class="lineno"> 1742</span>  copy_icvs(&team->t.t_threads[0]->th.th_bar[bs_forkjoin_barrier].bb.th_fixed_icvs, new_icvs);</div><div class="line"><a name="l01743"></a><span class="lineno"> 1743</span>  KF_TRACE(10, (<span class="stringliteral">"__kmp_setup_icv_copy: PULL: T#%d this_thread=%p team=%p\n"</span>,</div><div class="line"><a name="l01744"></a><span class="lineno"> 1744</span>  0, team->t.t_threads[0], team));</div><div class="line"><a name="l01745"></a><span class="lineno"> 1745</span> <span class="preprocessor">#elif KMP_BARRIER_ICV_PUSH</span></div><div class="line"><a name="l01746"></a><span class="lineno"> 1746</span>  <span class="comment">// The ICVs will be propagated in the fork barrier, so nothing needs to be done here.</span></div><div class="line"><a name="l01747"></a><span class="lineno"> 1747</span>  KF_TRACE(10, (<span class="stringliteral">"__kmp_setup_icv_copy: PUSH: T#%d this_thread=%p team=%p\n"</span>,</div><div class="line"><a name="l01748"></a><span class="lineno"> 1748</span>  0, team->t.t_threads[0], team));</div><div class="line"><a name="l01749"></a><span class="lineno"> 1749</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l01750"></a><span class="lineno"> 1750</span>  <span class="comment">// Copy the ICVs to each of the non-master threads. This takes O(nthreads) time.</span></div><div class="line"><a name="l01751"></a><span class="lineno"> 1751</span>  ngo_load(new_icvs);</div><div class="line"><a name="l01752"></a><span class="lineno"> 1752</span>  KMP_DEBUG_ASSERT(team->t.t_threads[0]); <span class="comment">// The threads arrays should be allocated at this point</span></div><div class="line"><a name="l01753"></a><span class="lineno"> 1753</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> f=1; f<new_nproc; ++f) { <span class="comment">// Skip the master thread</span></div><div class="line"><a name="l01754"></a><span class="lineno"> 1754</span>  <span class="comment">// TODO: GEH - pass in better source location info since usually NULL here</span></div><div class="line"><a name="l01755"></a><span class="lineno"> 1755</span>  KF_TRACE(10, (<span class="stringliteral">"__kmp_setup_icv_copy: LINEAR: T#%d this_thread=%p team=%p\n"</span>,</div><div class="line"><a name="l01756"></a><span class="lineno"> 1756</span>  f, team->t.t_threads[f], team));</div><div class="line"><a name="l01757"></a><span class="lineno"> 1757</span>  __kmp_init_implicit_task(loc, team->t.t_threads[f], team, f, FALSE);</div><div class="line"><a name="l01758"></a><span class="lineno"> 1758</span>  ngo_store_icvs(&team->t.t_implicit_task_taskdata[f].td_icvs, new_icvs);</div><div class="line"><a name="l01759"></a><span class="lineno"> 1759</span>  KF_TRACE(10, (<span class="stringliteral">"__kmp_setup_icv_copy: LINEAR: T#%d this_thread=%p team=%p\n"</span>,</div><div class="line"><a name="l01760"></a><span class="lineno"> 1760</span>  f, team->t.t_threads[f], team));</div><div class="line"><a name="l01761"></a><span class="lineno"> 1761</span>  }</div><div class="line"><a name="l01762"></a><span class="lineno"> 1762</span>  ngo_sync();</div><div class="line"><a name="l01763"></a><span class="lineno"> 1763</span> <span class="preprocessor">#endif // KMP_BARRIER_ICV_PULL</span></div><div class="line"><a name="l01764"></a><span class="lineno"> 1764</span> }</div><div class="ttc" id="structident_html"><div class="ttname"><a href="structident.html">ident</a></div><div class="ttdef"><b>Definition:</b> <a href="kmp_8h_source.html#l00194">kmp.h:194</a></div></div>
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