195c892a9d
MPI_Comm_idup. As part of this work I implemented a basic request scheduler in ompi/comm/comm_request.c. This scheduler might be useful for more than just communicator requests and could be moved to ompi/request if there is a demand. Otherwise I will leave it where it is. Added a non-blocking version of ompi_comm_set to support ompi_comm_idup. The call makes a recursive call to comm_dup and a non-blocking version was needed. To simplify the code the blocking version calls the nonblocking version and waits on the resulting request if one exists. cmr=v1.7.4:reviewer=jsquyres:ticket=trac:3796 This commit was SVN r29334. The following Trac tickets were found above: Ticket 3796 --> https://svn.open-mpi.org/trac/ompi/ticket/3796
81 строка
2.7 KiB
C
81 строка
2.7 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2008 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2006-2007 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2013 Los Alamos National Security, LLC. All rights
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* reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include <stdio.h>
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#include "ompi/mpi/c/bindings.h"
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#include "ompi/runtime/params.h"
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#include "ompi/communicator/communicator.h"
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#include "ompi/errhandler/errhandler.h"
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#include "ompi/mca/pml/pml.h"
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#include "ompi/memchecker.h"
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#if OPAL_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
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#pragma weak MPI_Comm_create_group = PMPI_Comm_create_group
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#endif
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#if OMPI_PROFILING_DEFINES
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#include "ompi/mpi/c/profile/defines.h"
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#endif
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static const char FUNC_NAME[] = "MPI_Comm_create_group";
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int MPI_Comm_create_group (MPI_Comm comm, MPI_Group group, int tag, MPI_Comm *newcomm) {
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int rc;
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MEMCHECKER(
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memchecker_comm(comm);
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);
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if ( MPI_PARAM_CHECK ) {
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OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
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if (ompi_comm_invalid (comm))
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return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM,
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FUNC_NAME);
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if (tag < 0 || tag > mca_pml.pml_max_tag)
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_TAG,
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FUNC_NAME);
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if ( NULL == group )
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_GROUP,
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FUNC_NAME);
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if ( NULL == newcomm )
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG,
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FUNC_NAME);
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}
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if (MPI_GROUP_NULL == group || MPI_UNDEFINED == ompi_group_rank (group)) {
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*newcomm = MPI_COMM_NULL;
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return MPI_SUCCESS;
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}
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OPAL_CR_ENTER_LIBRARY();
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rc = ompi_comm_create_group ((ompi_communicator_t *) comm, (ompi_group_t *) group,
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tag, (ompi_communicator_t **) newcomm);
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OMPI_ERRHANDLER_RETURN (rc, comm, rc, FUNC_NAME);
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}
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