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<?xml version="1.0" encoding="ISO-8859-1"?>
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<title>./src/group_level/etsf_io_electrons_get.f90</title>
<!-- Source: ./src/group_level/etsf_io_electrons_get.f90 -->
<!-- Generated with ROBODoc Version 4.99.30 (Jun 25 2008) -->
</head>
<body>
<div id="logo">
<a name="robo_top_of_doc">ETSF_IO library - documentation pages</a>
</div> <!-- logo -->
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</div> <!-- navigation -->
<div id="content">
<h3>TABLE OF CONTENTS</h3>
<ul>
<li><a href="#robo39">etsf_io_electrons_get</a></li>
</ul>
<hr />
<a name="etsf5felectrons2fetsf5fio5felectrons5fget">
</a><a name="robo39"></a><h2>etsf_io_electrons_get</h2>

<p>[ <a href="#robo_top_of_doc">Top</a> ] [ <a href="./etsf_io_f90.html#robo11">etsf_electrons</a> ] [ <a href="../robo_methods.html#robo_top_of_doc">Methods</a> ]</p>
<p class="item_name">NAME</p>
<p>  <strong>etsf_io_electrons_get</strong>
</p>
<p class="item_name">FUNCTION</p>
<p>    Read an opened ETSF file to get data related to the given group.
    Only associated pointers of argument @folder will be accessed. If any accessed
    variable is missing, this routine returns an error (usually an access_mode_id
    of argument error_data set to ERROR_MODE_INQ). Any other errors implies a
    return with @lstat = .false..
</p>
<p class="item_name">INPUTS</p>
<ul><li> ncid = 
     integer returned by an 'open' NetCDF call. The file can be 
     either in define or write mode. This status can be changed
     by the call.
</li>
<li> use_atomic_units = (optional) 
     set this flag to .true. makes the library use the value of the attribute
     scale_to_atomic_units to multiply the read variables (that are units dependent)
     by this factor (if different from 1.0d0).
</li>
</ul>
<p></p>
<p class="item_name">OUTPUT</p>
<ul><li> lstat = 
     return .true. if all the actions succeed, if not the status
     of the file is undefined.
</li>
<li> error_data &lt;type(<a href="../low_level/public_variables_f90.html#robo68">etsf_io_low_error</a>)&gt; = 
     contains the details of the error is @lstat is false.
</li>
</ul>
<p></p>
<p class="item_name">SIDE EFFECTS</p>
<ul><li> folder &lt;type(<a href="./etsf_io_f90.html#robo11">etsf_electrons</a>)&gt; = 
     an allocated structure with pointers on allocated areas in memory.
     These areas will be read or written if the pointer is associated, if
     not, the variable will be ignored. It is possible to access to specific
     dimensions of a variable using the &lt;short_var_name&gt;__kpoint_access or
     &lt;short_var_name&gt;__spin_access of this @folder structure. The 
     &lt;short_var_name&gt;__number_of_&lt;something&gt; can also been set if only a subpart
     in one dimension should be accessed (this is possible when the specifications
     have been declared with a max_number_of_&lt;something&gt;.
</li>
</ul>
<p></p>
<p class="item_name">NOTES</p>
<p>  This file has been automatically generated by the autogen_subroutines.py
  script. Any change you would bring to it will systematically be
  overwritten.
</p>
<p class="item_name">SOURCE</p>
<pre class="source"><span class="keyword">subroutine</span> <strong>etsf_io_electrons_get</strong><span class="sign">(</span>ncid<span class="sign">,</span> folder<span class="sign">,</span> lstat<span class="sign">,</span> error_data<span class="sign">,</span> use_atomic_units<span class="sign">)</span>

  <span class="comment">!Arguments ------------------------------------</span>
  <span class="keyword">integer</span><span class="sign">,</span> <span class="keyword">intent</span><span class="sign">(</span><span class="keyword">intent</span><span class="sign">)</span> <span class="sign">:</span><span class="sign">:</span> ncid
  <span class="keyword">type</span><span class="sign">(</span><a href="./etsf_io_f90.html#robo11">etsf_electrons</a><span class="sign">)</span><span class="sign">,</span> <span class="keyword">intent</span><span class="sign">(</span><span class="keyword">inout</span><span class="sign">)</span> <span class="sign">:</span><span class="sign">:</span> folder
  <span class="keyword">logical</span><span class="sign">,</span> <span class="keyword">intent</span><span class="sign">(</span><span class="keyword">out</span><span class="sign">)</span> <span class="sign">:</span><span class="sign">:</span> lstat
  <span class="keyword">type</span><span class="sign">(</span><a href="../low_level/public_variables_f90.html#robo68">etsf_io_low_error</a><span class="sign">)</span><span class="sign">,</span> <span class="keyword">intent</span><span class="sign">(</span><span class="keyword">out</span><span class="sign">)</span> <span class="sign">:</span><span class="sign">:</span> error_data
  <span class="keyword">logical</span><span class="sign">,</span> <span class="keyword">optional</span><span class="sign">,</span> <span class="keyword">intent</span><span class="sign">(</span><span class="keyword">intent</span><span class="sign">)</span> <span class="sign">:</span><span class="sign">:</span> use_atomic_units

  <span class="comment">!Local variables-------------------------------</span>
  <span class="keyword">character</span><span class="sign">(</span><span class="keyword">len</span> <span class="sign">=</span> <span class="sign">*</span><span class="sign">)</span><span class="sign">,</span> <span class="keyword">parameter</span> <span class="sign">:</span><span class="sign">:</span> my_name <span class="sign">=</span> <span class="squote">'<strong>etsf_io_electrons_get</strong>'</span>
  <span class="keyword">logical</span> <span class="sign">:</span><span class="sign">:</span> my_use_atomic_units
  <span class="keyword">integer</span><span class="sign">,</span><span class="keyword">allocatable</span> <span class="sign">:</span><span class="sign">:</span> varid<span class="sign">(</span><span class="sign">:</span><span class="sign">)</span>
  <span class="keyword">integer</span><span class="sign">,</span><span class="keyword">allocatable</span> <span class="sign">:</span><span class="sign">:</span> start<span class="sign">(</span><span class="sign">:</span><span class="sign">)</span>
  <span class="keyword">integer</span><span class="sign">,</span><span class="keyword">allocatable</span> <span class="sign">:</span><span class="sign">:</span> count<span class="sign">(</span><span class="sign">:</span><span class="sign">)</span>
  <span class="keyword">integer</span> <span class="sign">:</span><span class="sign">:</span> <span class="keyword">len</span>
  <span class="keyword">character</span><span class="sign">(</span>etsf_charlen<span class="sign">)</span> <span class="sign">:</span><span class="sign">:</span> flag


  <span class="comment">! *************************************************************************</span>

<span class="comment">!DEBUG</span>
<span class="comment">!write (*,*) '<strong>etsf_io_electrons_get</strong> : enter'</span>
<span class="comment">!ENDDEBUG</span>

  <span class="comment">! Get values for optional arguments, set default.</span>
  <span class="keyword">if</span> <span class="sign">(</span><span class="keyword">present</span><span class="sign">(</span>use_atomic_units<span class="sign">)</span><span class="sign">)</span> <span class="keyword">then</span>
    my_use_atomic_units <span class="sign">=</span> use_atomic_units
  <span class="keyword">else</span>
    my_use_atomic_units <span class="sign">=</span> <span class="sign">.</span><span class="keyword">true</span><span class="sign">.</span>
  <span class="keyword">end</span> <span class="keyword">if</span>
  
  <span class="keyword">allocate</span><span class="sign">(</span>varid<span class="sign">(</span>9<span class="sign">)</span><span class="sign">)</span>
  
  <span class="keyword">if</span> <span class="sign">(</span><span class="keyword">associated</span><span class="sign">(</span>folder<span class="sign">%</span>number_of_electrons<span class="sign">)</span><span class="sign">)</span> <span class="keyword">then</span>
    <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo86">etsf_io_low_read_var</a><span class="sign">(</span>ncid<span class="sign">,</span> <span class="quote">"number_of_electrons"</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> folder<span class="sign">%</span>number_of_electrons<span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> lstat<span class="sign">,</span> ncvarid <span class="sign">=</span> varid<span class="sign">(</span>1<span class="sign">)</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> error_data <span class="sign">=</span> error_data<span class="sign">)</span>
    <span class="keyword">if</span> <span class="sign">(</span><span class="sign">.</span><span class="keyword">not</span><span class="sign">.</span> lstat<span class="sign">)</span> <span class="keyword">then</span>
      <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo74">etsf_io_low_error_update</a><span class="sign">(</span>error_data<span class="sign">,</span> my_name<span class="sign">)</span>
      <span class="keyword">return</span>
    <span class="keyword">end</span> <span class="keyword">if</span>
  <span class="keyword">end</span> <span class="keyword">if</span>
  
  <span class="keyword">if</span> <span class="sign">(</span><span class="keyword">associated</span><span class="sign">(</span>folder<span class="sign">%</span>exchange_functional<span class="sign">)</span><span class="sign">)</span> <span class="keyword">then</span>
    <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo86">etsf_io_low_read_var</a><span class="sign">(</span>ncid<span class="sign">,</span> <span class="quote">"exchange_functional"</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> folder<span class="sign">%</span>exchange_functional<span class="sign">,</span> etsf_charlen<span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> lstat<span class="sign">,</span> ncvarid <span class="sign">=</span> varid<span class="sign">(</span>2<span class="sign">)</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> error_data <span class="sign">=</span> error_data<span class="sign">)</span>
    <span class="keyword">if</span> <span class="sign">(</span><span class="sign">.</span><span class="keyword">not</span><span class="sign">.</span> lstat<span class="sign">)</span> <span class="keyword">then</span>
      <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo74">etsf_io_low_error_update</a><span class="sign">(</span>error_data<span class="sign">,</span> my_name<span class="sign">)</span>
      <span class="keyword">return</span>
    <span class="keyword">end</span> <span class="keyword">if</span>
  <span class="keyword">end</span> <span class="keyword">if</span>
  
  <span class="keyword">if</span> <span class="sign">(</span><span class="keyword">associated</span><span class="sign">(</span>folder<span class="sign">%</span>correlation_functional<span class="sign">)</span><span class="sign">)</span> <span class="keyword">then</span>
    <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo86">etsf_io_low_read_var</a><span class="sign">(</span>ncid<span class="sign">,</span> <span class="quote">"correlation_functional"</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> folder<span class="sign">%</span>correlation_functional<span class="sign">,</span> etsf_charlen<span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> lstat<span class="sign">,</span> ncvarid <span class="sign">=</span> varid<span class="sign">(</span>3<span class="sign">)</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> error_data <span class="sign">=</span> error_data<span class="sign">)</span>
    <span class="keyword">if</span> <span class="sign">(</span><span class="sign">.</span><span class="keyword">not</span><span class="sign">.</span> lstat<span class="sign">)</span> <span class="keyword">then</span>
      <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo74">etsf_io_low_error_update</a><span class="sign">(</span>error_data<span class="sign">,</span> my_name<span class="sign">)</span>
      <span class="keyword">return</span>
    <span class="keyword">end</span> <span class="keyword">if</span>
  <span class="keyword">end</span> <span class="keyword">if</span>
  
  <span class="keyword">if</span> <span class="sign">(</span><span class="keyword">associated</span><span class="sign">(</span>folder<span class="sign">%</span>fermi_energy<span class="sign">)</span><span class="sign">)</span> <span class="keyword">then</span>
    <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo86">etsf_io_low_read_var</a><span class="sign">(</span>ncid<span class="sign">,</span> <span class="quote">"fermi_energy"</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> folder<span class="sign">%</span>fermi_energy<span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> lstat<span class="sign">,</span> ncvarid <span class="sign">=</span> varid<span class="sign">(</span>4<span class="sign">)</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> error_data <span class="sign">=</span> error_data<span class="sign">)</span>
    <span class="keyword">if</span> <span class="sign">(</span><span class="sign">.</span><span class="keyword">not</span><span class="sign">.</span> lstat<span class="sign">)</span> <span class="keyword">then</span>
      <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo74">etsf_io_low_error_update</a><span class="sign">(</span>error_data<span class="sign">,</span> my_name<span class="sign">)</span>
      <span class="keyword">return</span>
    <span class="keyword">end</span> <span class="keyword">if</span>
  <span class="keyword">end</span> <span class="keyword">if</span>
  
  <span class="keyword">if</span> <span class="sign">(</span><span class="keyword">associated</span><span class="sign">(</span>folder<span class="sign">%</span>smearing_scheme<span class="sign">)</span><span class="sign">)</span> <span class="keyword">then</span>
    <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo86">etsf_io_low_read_var</a><span class="sign">(</span>ncid<span class="sign">,</span> <span class="quote">"smearing_scheme"</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> folder<span class="sign">%</span>smearing_scheme<span class="sign">,</span> etsf_charlen<span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> lstat<span class="sign">,</span> ncvarid <span class="sign">=</span> varid<span class="sign">(</span>5<span class="sign">)</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> error_data <span class="sign">=</span> error_data<span class="sign">)</span>
    <span class="keyword">if</span> <span class="sign">(</span><span class="sign">.</span><span class="keyword">not</span><span class="sign">.</span> lstat<span class="sign">)</span> <span class="keyword">then</span>
      <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo74">etsf_io_low_error_update</a><span class="sign">(</span>error_data<span class="sign">,</span> my_name<span class="sign">)</span>
      <span class="keyword">return</span>
    <span class="keyword">end</span> <span class="keyword">if</span>
  <span class="keyword">end</span> <span class="keyword">if</span>
  
  <span class="keyword">if</span> <span class="sign">(</span><span class="keyword">associated</span><span class="sign">(</span>folder<span class="sign">%</span>smearing_width<span class="sign">)</span><span class="sign">)</span> <span class="keyword">then</span>
    <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo86">etsf_io_low_read_var</a><span class="sign">(</span>ncid<span class="sign">,</span> <span class="quote">"smearing_width"</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> folder<span class="sign">%</span>smearing_width<span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> lstat<span class="sign">,</span> ncvarid <span class="sign">=</span> varid<span class="sign">(</span>6<span class="sign">)</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> error_data <span class="sign">=</span> error_data<span class="sign">)</span>
    <span class="keyword">if</span> <span class="sign">(</span><span class="sign">.</span><span class="keyword">not</span><span class="sign">.</span> lstat<span class="sign">)</span> <span class="keyword">then</span>
      <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo74">etsf_io_low_error_update</a><span class="sign">(</span>error_data<span class="sign">,</span> my_name<span class="sign">)</span>
      <span class="keyword">return</span>
    <span class="keyword">end</span> <span class="keyword">if</span>
  <span class="keyword">end</span> <span class="keyword">if</span>
  
  <span class="keyword">if</span> <span class="sign">(</span><a href="../low_level/etsf_io_low_level_f90.html#robo91">etsf_io_low_var_associated</a><span class="sign">(</span>folder<span class="sign">%</span>number_of_states<span class="sign">)</span><span class="sign">)</span> <span class="keyword">then</span>
    <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo86">etsf_io_low_read_var</a><span class="sign">(</span>ncid<span class="sign">,</span> <span class="quote">"number_of_states"</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> folder<span class="sign">%</span>number_of_states<span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> lstat<span class="sign">,</span> ncvarid <span class="sign">=</span> varid<span class="sign">(</span>7<span class="sign">)</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> error_data <span class="sign">=</span> error_data<span class="sign">)</span>
    <span class="keyword">if</span> <span class="sign">(</span><span class="sign">.</span><span class="keyword">not</span><span class="sign">.</span> lstat<span class="sign">)</span> <span class="keyword">then</span>
      <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo74">etsf_io_low_error_update</a><span class="sign">(</span>error_data<span class="sign">,</span> my_name<span class="sign">)</span>
      <span class="keyword">return</span>
    <span class="keyword">end</span> <span class="keyword">if</span>
  <span class="keyword">end</span> <span class="keyword">if</span>
  
  <span class="keyword">if</span> <span class="sign">(</span><a href="../low_level/etsf_io_low_level_f90.html#robo91">etsf_io_low_var_associated</a><span class="sign">(</span>folder<span class="sign">%</span>eigenvalues<span class="sign">)</span><span class="sign">)</span> <span class="keyword">then</span>
    <span class="keyword">allocate</span><span class="sign">(</span>start<span class="sign">(</span>3<span class="sign">)</span><span class="sign">,</span> count<span class="sign">(</span>3<span class="sign">)</span><span class="sign">)</span>
    start<span class="sign">(</span><span class="sign">:</span><span class="sign">)</span> <span class="sign">=</span> 1
    count<span class="sign">(</span><span class="sign">:</span><span class="sign">)</span> <span class="sign">=</span> 0
    <span class="keyword">if</span> <span class="sign">(</span>folder<span class="sign">%</span>eigenvalues__spin_access <span class="sign">/</span><span class="sign">=</span> etsf_no_sub_access<span class="sign">)</span> <span class="keyword">then</span>
      start<span class="sign">(</span>3<span class="sign">)</span> <span class="sign">=</span> folder<span class="sign">%</span>eigenvalues__spin_access
      count<span class="sign">(</span>3<span class="sign">)</span> <span class="sign">=</span> 1
    <span class="keyword">end</span> <span class="keyword">if</span>
    <span class="keyword">if</span> <span class="sign">(</span>folder<span class="sign">%</span>eigenvalues__kpoint_access <span class="sign">/</span><span class="sign">=</span> etsf_no_sub_access<span class="sign">)</span> <span class="keyword">then</span>
      start<span class="sign">(</span>2<span class="sign">)</span> <span class="sign">=</span> folder<span class="sign">%</span>eigenvalues__kpoint_access
      count<span class="sign">(</span>2<span class="sign">)</span> <span class="sign">=</span> 1
    <span class="keyword">end</span> <span class="keyword">if</span>
    count<span class="sign">(</span>1<span class="sign">)</span> <span class="sign">=</span> folder<span class="sign">%</span>eigenvalues__number_of_states
    <span class="keyword">if</span> <span class="sign">(</span>folder<span class="sign">%</span>eigenvalues__state_access <span class="sign">/</span><span class="sign">=</span> etsf_no_sub_access<span class="sign">)</span> <span class="keyword">then</span>
      start<span class="sign">(</span>1<span class="sign">)</span> <span class="sign">=</span> folder<span class="sign">%</span>eigenvalues__state_access
      count<span class="sign">(</span>1<span class="sign">)</span> <span class="sign">=</span> 1
    <span class="keyword">end</span> <span class="keyword">if</span>
    <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo86">etsf_io_low_read_var</a><span class="sign">(</span>ncid<span class="sign">,</span> <span class="quote">"eigenvalues"</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> folder<span class="sign">%</span>eigenvalues<span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> lstat<span class="sign">,</span> ncvarid <span class="sign">=</span> varid<span class="sign">(</span>8<span class="sign">)</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> error_data <span class="sign">=</span> error_data<span class="sign">,</span> start <span class="sign">=</span> start<span class="sign">,</span> count <span class="sign">=</span> count<span class="sign">)</span>
    <span class="keyword">deallocate</span><span class="sign">(</span>start<span class="sign">,</span> count<span class="sign">)</span>
    <span class="keyword">if</span> <span class="sign">(</span><span class="sign">.</span><span class="keyword">not</span><span class="sign">.</span> lstat<span class="sign">)</span> <span class="keyword">then</span>
      <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo74">etsf_io_low_error_update</a><span class="sign">(</span>error_data<span class="sign">,</span> my_name<span class="sign">)</span>
      <span class="keyword">return</span>
    <span class="keyword">end</span> <span class="keyword">if</span>
  <span class="keyword">end</span> <span class="keyword">if</span>
  
  <span class="keyword">if</span> <span class="sign">(</span><a href="../low_level/etsf_io_low_level_f90.html#robo91">etsf_io_low_var_associated</a><span class="sign">(</span>folder<span class="sign">%</span>occupations<span class="sign">)</span><span class="sign">)</span> <span class="keyword">then</span>
    <span class="keyword">allocate</span><span class="sign">(</span>start<span class="sign">(</span>3<span class="sign">)</span><span class="sign">,</span> count<span class="sign">(</span>3<span class="sign">)</span><span class="sign">)</span>
    start<span class="sign">(</span><span class="sign">:</span><span class="sign">)</span> <span class="sign">=</span> 1
    count<span class="sign">(</span><span class="sign">:</span><span class="sign">)</span> <span class="sign">=</span> 0
    <span class="keyword">if</span> <span class="sign">(</span>folder<span class="sign">%</span>occupations__spin_access <span class="sign">/</span><span class="sign">=</span> etsf_no_sub_access<span class="sign">)</span> <span class="keyword">then</span>
      start<span class="sign">(</span>3<span class="sign">)</span> <span class="sign">=</span> folder<span class="sign">%</span>occupations__spin_access
      count<span class="sign">(</span>3<span class="sign">)</span> <span class="sign">=</span> 1
    <span class="keyword">end</span> <span class="keyword">if</span>
    <span class="keyword">if</span> <span class="sign">(</span>folder<span class="sign">%</span>occupations__kpoint_access <span class="sign">/</span><span class="sign">=</span> etsf_no_sub_access<span class="sign">)</span> <span class="keyword">then</span>
      start<span class="sign">(</span>2<span class="sign">)</span> <span class="sign">=</span> folder<span class="sign">%</span>occupations__kpoint_access
      count<span class="sign">(</span>2<span class="sign">)</span> <span class="sign">=</span> 1
    <span class="keyword">end</span> <span class="keyword">if</span>
    count<span class="sign">(</span>1<span class="sign">)</span> <span class="sign">=</span> folder<span class="sign">%</span>occupations__number_of_states
    <span class="keyword">if</span> <span class="sign">(</span>folder<span class="sign">%</span>occupations__state_access <span class="sign">/</span><span class="sign">=</span> etsf_no_sub_access<span class="sign">)</span> <span class="keyword">then</span>
      start<span class="sign">(</span>1<span class="sign">)</span> <span class="sign">=</span> folder<span class="sign">%</span>occupations__state_access
      count<span class="sign">(</span>1<span class="sign">)</span> <span class="sign">=</span> 1
    <span class="keyword">end</span> <span class="keyword">if</span>
    <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo86">etsf_io_low_read_var</a><span class="sign">(</span>ncid<span class="sign">,</span> <span class="quote">"occupations"</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> folder<span class="sign">%</span>occupations<span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> lstat<span class="sign">,</span> ncvarid <span class="sign">=</span> varid<span class="sign">(</span>9<span class="sign">)</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> error_data <span class="sign">=</span> error_data<span class="sign">,</span> start <span class="sign">=</span> start<span class="sign">,</span> count <span class="sign">=</span> count<span class="sign">)</span>
    <span class="keyword">deallocate</span><span class="sign">(</span>start<span class="sign">,</span> count<span class="sign">)</span>
    <span class="keyword">if</span> <span class="sign">(</span><span class="sign">.</span><span class="keyword">not</span><span class="sign">.</span> lstat<span class="sign">)</span> <span class="keyword">then</span>
      <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo74">etsf_io_low_error_update</a><span class="sign">(</span>error_data<span class="sign">,</span> my_name<span class="sign">)</span>
      <span class="keyword">return</span>
    <span class="keyword">end</span> <span class="keyword">if</span>
  <span class="keyword">end</span> <span class="keyword">if</span>
  
  <span class="comment">! Handle all attributes for the group.</span>
  <span class="keyword">if</span> <span class="sign">(</span><span class="keyword">associated</span><span class="sign">(</span>folder<span class="sign">%</span>fermi_energy<span class="sign">)</span><span class="sign">)</span> <span class="keyword">then</span>
    <span class="comment">! Handle the units attribute.</span>
    <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo82">etsf_io_low_read_att</a><span class="sign">(</span>ncid<span class="sign">,</span> varid<span class="sign">(</span>4<span class="sign">)</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> <span class="quote">"units"</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> etsf_charlen<span class="sign">,</span> folder<span class="sign">%</span>fermi_energy__units<span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> lstat<span class="sign">,</span> error_data <span class="sign">=</span> error_data<span class="sign">)</span>
    <span class="keyword">if</span> <span class="sign">(</span><span class="sign">.</span><span class="keyword">not</span><span class="sign">.</span> lstat<span class="sign">)</span> <span class="keyword">return</span>
    <span class="keyword">if</span> <span class="sign">(</span><span class="keyword">trim</span><span class="sign">(</span>folder<span class="sign">%</span>fermi_energy__units<span class="sign">)</span> <span class="sign">/</span><span class="sign">=</span> <span class="quote">"atomic units"</span><span class="sign">)</span> <span class="keyword">then</span>
      <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo82">etsf_io_low_read_att</a><span class="sign">(</span>ncid<span class="sign">,</span> varid<span class="sign">(</span>4<span class="sign">)</span><span class="sign">,</span> <span class="sign">&amp;</span>
                              <span class="sign">&amp;</span> <span class="quote">"scale_to_atomic_units"</span><span class="sign">,</span> <span class="sign">&amp;</span>
                              <span class="sign">&amp;</span> folder<span class="sign">%</span>fermi_energy__scale_to_atomic_units<span class="sign">,</span> <span class="sign">&amp;</span>
                              <span class="sign">&amp;</span> lstat<span class="sign">,</span> error_data <span class="sign">=</span> error_data<span class="sign">)</span>
      <span class="keyword">if</span> <span class="sign">(</span><span class="sign">.</span><span class="keyword">not</span><span class="sign">.</span> lstat<span class="sign">)</span> <span class="keyword">return</span>
    <span class="keyword">else</span>
      folder<span class="sign">%</span>fermi_energy__scale_to_atomic_units <span class="sign">=</span> 1<span class="sign">.</span>0d0
    <span class="keyword">end</span> <span class="keyword">if</span>
    <span class="keyword">if</span> <span class="sign">(</span>my_use_atomic_units <span class="sign">.</span><span class="keyword">and</span><span class="sign">.</span> <span class="sign">&amp;</span>
      <span class="sign">&amp;</span> folder<span class="sign">%</span>fermi_energy__scale_to_atomic_units <span class="sign">/</span><span class="sign">=</span> 1<span class="sign">.</span>0d0<span class="sign">)</span> <span class="keyword">then</span>
      folder<span class="sign">%</span>fermi_energy <span class="sign">=</span> folder<span class="sign">%</span>fermi_energy <span class="sign">*</span> <span class="sign">&amp;</span>
        <span class="sign">&amp;</span> folder<span class="sign">%</span>fermi_energy__scale_to_atomic_units
    <span class="keyword">end</span> <span class="keyword">if</span>
  <span class="keyword">end</span> <span class="keyword">if</span>
  
  <span class="keyword">if</span> <span class="sign">(</span><span class="keyword">associated</span><span class="sign">(</span>folder<span class="sign">%</span>smearing_width<span class="sign">)</span><span class="sign">)</span> <span class="keyword">then</span>
    <span class="comment">! Handle the units attribute.</span>
    <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo82">etsf_io_low_read_att</a><span class="sign">(</span>ncid<span class="sign">,</span> varid<span class="sign">(</span>6<span class="sign">)</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> <span class="quote">"units"</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> etsf_charlen<span class="sign">,</span> folder<span class="sign">%</span>smearing_width__units<span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> lstat<span class="sign">,</span> error_data <span class="sign">=</span> error_data<span class="sign">)</span>
    <span class="keyword">if</span> <span class="sign">(</span><span class="sign">.</span><span class="keyword">not</span><span class="sign">.</span> lstat<span class="sign">)</span> <span class="keyword">return</span>
    <span class="keyword">if</span> <span class="sign">(</span><span class="keyword">trim</span><span class="sign">(</span>folder<span class="sign">%</span>smearing_width__units<span class="sign">)</span> <span class="sign">/</span><span class="sign">=</span> <span class="quote">"atomic units"</span><span class="sign">)</span> <span class="keyword">then</span>
      <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo82">etsf_io_low_read_att</a><span class="sign">(</span>ncid<span class="sign">,</span> varid<span class="sign">(</span>6<span class="sign">)</span><span class="sign">,</span> <span class="sign">&amp;</span>
                              <span class="sign">&amp;</span> <span class="quote">"scale_to_atomic_units"</span><span class="sign">,</span> <span class="sign">&amp;</span>
                              <span class="sign">&amp;</span> folder<span class="sign">%</span>smearing_width__scale_to_atomic_units<span class="sign">,</span> <span class="sign">&amp;</span>
                              <span class="sign">&amp;</span> lstat<span class="sign">,</span> error_data <span class="sign">=</span> error_data<span class="sign">)</span>
      <span class="keyword">if</span> <span class="sign">(</span><span class="sign">.</span><span class="keyword">not</span><span class="sign">.</span> lstat<span class="sign">)</span> <span class="keyword">return</span>
    <span class="keyword">else</span>
      folder<span class="sign">%</span>smearing_width__scale_to_atomic_units <span class="sign">=</span> 1<span class="sign">.</span>0d0
    <span class="keyword">end</span> <span class="keyword">if</span>
    <span class="keyword">if</span> <span class="sign">(</span>my_use_atomic_units <span class="sign">.</span><span class="keyword">and</span><span class="sign">.</span> <span class="sign">&amp;</span>
      <span class="sign">&amp;</span> folder<span class="sign">%</span>smearing_width__scale_to_atomic_units <span class="sign">/</span><span class="sign">=</span> 1<span class="sign">.</span>0d0<span class="sign">)</span> <span class="keyword">then</span>
      folder<span class="sign">%</span>smearing_width <span class="sign">=</span> folder<span class="sign">%</span>smearing_width <span class="sign">*</span> <span class="sign">&amp;</span>
        <span class="sign">&amp;</span> folder<span class="sign">%</span>smearing_width__scale_to_atomic_units
    <span class="keyword">end</span> <span class="keyword">if</span>
  <span class="keyword">end</span> <span class="keyword">if</span>
  
  <span class="keyword">if</span> <span class="sign">(</span><a href="../low_level/etsf_io_low_level_f90.html#robo91">etsf_io_low_var_associated</a><span class="sign">(</span>folder<span class="sign">%</span>eigenvalues<span class="sign">)</span><span class="sign">)</span> <span class="keyword">then</span>
    <span class="comment">! Handle the units attribute.</span>
    <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo82">etsf_io_low_read_att</a><span class="sign">(</span>ncid<span class="sign">,</span> varid<span class="sign">(</span>8<span class="sign">)</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> <span class="quote">"units"</span><span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> etsf_charlen<span class="sign">,</span> folder<span class="sign">%</span>eigenvalues__units<span class="sign">,</span> <span class="sign">&amp;</span>
                            <span class="sign">&amp;</span> lstat<span class="sign">,</span> error_data <span class="sign">=</span> error_data<span class="sign">)</span>
    <span class="keyword">if</span> <span class="sign">(</span><span class="sign">.</span><span class="keyword">not</span><span class="sign">.</span> lstat<span class="sign">)</span> <span class="keyword">return</span>
    <span class="keyword">if</span> <span class="sign">(</span><span class="keyword">trim</span><span class="sign">(</span>folder<span class="sign">%</span>eigenvalues__units<span class="sign">)</span> <span class="sign">/</span><span class="sign">=</span> <span class="quote">"atomic units"</span><span class="sign">)</span> <span class="keyword">then</span>
      <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo82">etsf_io_low_read_att</a><span class="sign">(</span>ncid<span class="sign">,</span> varid<span class="sign">(</span>8<span class="sign">)</span><span class="sign">,</span> <span class="sign">&amp;</span>
                              <span class="sign">&amp;</span> <span class="quote">"scale_to_atomic_units"</span><span class="sign">,</span> <span class="sign">&amp;</span>
                              <span class="sign">&amp;</span> folder<span class="sign">%</span>eigenvalues__scale_to_atomic_units<span class="sign">,</span> <span class="sign">&amp;</span>
                              <span class="sign">&amp;</span> lstat<span class="sign">,</span> error_data <span class="sign">=</span> error_data<span class="sign">)</span>
      <span class="keyword">if</span> <span class="sign">(</span><span class="sign">.</span><span class="keyword">not</span><span class="sign">.</span> lstat<span class="sign">)</span> <span class="keyword">return</span>
    <span class="keyword">else</span>
      folder<span class="sign">%</span>eigenvalues__scale_to_atomic_units <span class="sign">=</span> 1<span class="sign">.</span>0d0
    <span class="keyword">end</span> <span class="keyword">if</span>
    <span class="keyword">if</span> <span class="sign">(</span>my_use_atomic_units <span class="sign">.</span><span class="keyword">and</span><span class="sign">.</span> <span class="sign">&amp;</span>
      <span class="sign">&amp;</span> folder<span class="sign">%</span>eigenvalues__scale_to_atomic_units <span class="sign">/</span><span class="sign">=</span> 1<span class="sign">.</span>0d0<span class="sign">)</span> <span class="keyword">then</span>
      <span class="keyword">call</span> <a href="../low_level/etsf_io_low_level_f90.html#robo95">etsf_io_low_var_multiply</a><span class="sign">(</span>folder<span class="sign">%</span>eigenvalues<span class="sign">,</span> <span class="sign">&amp;</span>
                                  <span class="sign">&amp;</span> folder<span class="sign">%</span>eigenvalues__scale_to_atomic_units<span class="sign">)</span>
    <span class="keyword">end</span> <span class="keyword">if</span>
  <span class="keyword">end</span> <span class="keyword">if</span>
  
  
  <span class="keyword">deallocate</span><span class="sign">(</span>varid<span class="sign">)</span>

<span class="comment">!DEBUG</span>
<span class="comment">!write (*,*) '<strong>etsf_io_electrons_get</strong> : exit'</span>
<span class="comment">!ENDDEBUG</span>

<span class="keyword">end</span> <span class="keyword">subroutine</span> <strong>etsf_io_electrons_get</strong>
</pre>

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