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openmpi/ompi/mpi/c/comm_disconnect.c
George Bosilca 366d64b7e5 Move the collective structure outside the communicator.
As we changed the ABI (forcing a major release), we can limit
the size of the predefined communicators by moving the collective
structure outside the communicator. This might have a minimal,
but unnoticeable, impact on performance. This approach has been
discussed during the January 2017 devel meeting.

Signed-off-by: George Bosilca <bosilca@icl.utk.edu>
Signed-off-by: Joshua Hursey <jhursey@us.ibm.com>
2017-02-27 11:54:17 -06:00

80 строки
2.4 KiB
C

/*
* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2017 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 (c) 2015 Intel, Inc. All rights reserved.
* Copyright (c) 2015 Research Organization for Information Science
* and Technology (RIST). 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 OMPI_BUILD_MPI_PROFILING
#if OPAL_HAVE_WEAK_SYMBOLS
#pragma weak MPI_Comm_disconnect = PMPI_Comm_disconnect
#endif
#define MPI_Comm_disconnect PMPI_Comm_disconnect
#endif
#include "ompi/dpm/dpm.h"
static const char FUNC_NAME[] = "MPI_Comm_disconnect";
int MPI_Comm_disconnect(MPI_Comm *comm)
{
int ret = MPI_SUCCESS;
MEMCHECKER(
memchecker_comm(*comm);
);
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 (MPI_COMM_WORLD == *comm || MPI_COMM_SELF == *comm ) {
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM, FUNC_NAME);
}
OPAL_CR_ENTER_LIBRARY();
if ( OMPI_COMM_IS_DYNAMIC(*comm)) {
if (OMPI_SUCCESS != ompi_dpm_disconnect (*comm)) {
ret = OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM, FUNC_NAME);
}
}
else {
(*comm)->c_coll->coll_barrier(*comm, (*comm)->c_coll->coll_barrier_module);
}
ompi_comm_free(comm);
OPAL_CR_EXIT_LIBRARY();
return ret;
}