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openmpi/ompi/mpi/c/comm_size.c
2015-06-23 20:59:57 -07:00

65 строки
1.8 KiB
C

/*
* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2008 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2006 Cisco Systems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <stdio.h>
#include "ompi/mpi/c/bindings.h"
#include "ompi/runtime/params.h"
#include "ompi/communicator/communicator.h"
#include "ompi/errhandler/errhandler.h"
#include "ompi/memchecker.h"
#if OPAL_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_Comm_size = PMPI_Comm_size
#endif
#if OMPI_PROFILING_DEFINES
#include "ompi/mpi/c/profile/defines.h"
#endif
static const char FUNC_NAME[] = "MPI_Comm_size";
int MPI_Comm_size(MPI_Comm comm, int *size)
{
MEMCHECKER(
memchecker_comm(comm);
);
OPAL_CR_NOOP_PROGRESS();
if ( MPI_PARAM_CHECK ) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
if ( ompi_comm_invalid (comm)) {
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD,
MPI_ERR_COMM, FUNC_NAME);
}
if ( NULL == size ) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
}
}
*size = ompi_comm_size((ompi_communicator_t*)comm);
return MPI_SUCCESS;
}