/usr/include/gromacs/thread_mpi/collective.h is in gromacs-dev 4.6.5-1build1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 | /*
This source code file is part of thread_mpi.
Written by Sander Pronk, Erik Lindahl, and possibly others.
Copyright (c) 2009, Sander Pronk, Erik Lindahl.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1) Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2) Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3) Neither the name of the copyright holders nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY US ''AS IS'' AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL WE BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
If you want to redistribute modifications, please consider that
scientific software is very special. Version control is crucial -
bugs must be traceable. We will be happy to consider code for
inclusion in the official distribution, but derived work should not
be called official thread_mpi. Details are found in the README & COPYING
files.
*/
#ifndef TMPI_COLLECTIVE_H_
#define TMPI_COLLECTIVE_H_
/** \file
*
* \brief Collective functions
*
*/
#include "visibility.h"
#ifdef __cplusplus
extern "C"
{
#endif
#if 0
} /* Avoids screwing up auto-indentation */
#endif
/** Execute function once over comm
Executes a given function only once per collective call over comm.
Collective function.
\param[in] function the function to call
\param[in] param the parameter to the function
\param[out] was_first set to 1 if the current thread was the one to
execute the function. unchanged if current thread
was not the one to execute the function; ignored
if NULL.
\param[in] comm The communicator.
\returns MPI_SUCCESS on success.
*/
TMPI_EXPORT
int tMPI_Once(tMPI_Comm comm, void (*function)(void*), void *param,
int *was_first);
/** Execute function once over comm, and wait for the function to return
its value.
Executes a given function only once per collective call over comm.
Collective function.
\param[in] function the function to call
\param[in] param the parameter to the function
\param[out] was_first set to 1 if the current thread was the one to
execute the function. unchanged if current thread
was not the one to execute the function; ignored
if NULL.
\param[in] comm The communicator.
\returns the return value of the function
*/
TMPI_EXPORT
void* tMPI_Once_wait(tMPI_Comm comm, void* (*function)(void*), void *param,
int *was_first);
/** Allocate a shared block of memory as a collective call.
Collective function.
\param[in] comm The communicator
\param[in] size The size in bytes to allocate
*/
TMPI_EXPORT
void* tMPI_Shmalloc(tMPI_Comm comm, size_t size);
#include "atomic.h"
typedef struct
{
tMPI_Atomic_t n_remaining; /* number of remaining operations */
void *res; /* result pointer */
tMPI_Comm comm;
} tMPI_Reduce_req;
/** Allocate data structure for asynchronous reduce. */
TMPI_EXPORT
tMPI_Reduce_req *tMPI_Reduce_req_alloc(tMPI_Comm comm);
#ifdef __cplusplus
} /* closing extern "C" */
#endif
#endif /* TMPI_COLLECTIVE_H_ */
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