d70e2e8c2b
Remains to be tested to ensure everything came over cleanly, so please continue to withhold commits a little longer This commit was SVN r17632.
141 строка
4.4 KiB
C
141 строка
4.4 KiB
C
/*
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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) 2004-2008 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 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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* $COPYRIGHT$
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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 "opal/util/show_help.h"
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#include "ompi/info/info.h"
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#include "ompi/mpi/c/bindings.h"
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#include "ompi/mca/dpm/dpm.h"
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#include "ompi/memchecker.h"
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#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
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#pragma weak MPI_Comm_spawn = PMPI_Comm_spawn
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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_spawn";
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int MPI_Comm_spawn(char *command, char **argv, int maxprocs, MPI_Info info,
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int root, MPI_Comm comm, MPI_Comm *intercomm,
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int *array_of_errcodes)
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{
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int rank, rc=OMPI_SUCCESS, i, flag;
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bool send_first = false; /* we wait to be contacted */
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ompi_communicator_t *newcomp=NULL;
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char port_name[MPI_MAX_PORT_NAME];
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char *tmp_port;
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orte_rml_tag_t tag;
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bool non_mpi = false;
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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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}
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if ( OMPI_COMM_IS_INTER(comm)) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_COMM,
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FUNC_NAME);
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}
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if ( (0 > root) || (ompi_comm_size(comm) <= root) ) {
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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 ( NULL == intercomm ) {
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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 (NULL == info || ompi_info_is_freed(info)) {
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return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_INFO,
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FUNC_NAME);
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}
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}
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rank = ompi_comm_rank ( comm );
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if ( MPI_PARAM_CHECK ) {
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if ( rank == root ) {
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if ( NULL == command ) {
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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 ( 0 > maxprocs ) {
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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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}
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}
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/* See if the info key "ompi_non_mpi" was set to true */
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ompi_info_get_bool(info, "ompi_non_mpi", &non_mpi, &flag);
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OPAL_CR_ENTER_LIBRARY();
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if ( rank == root ) {
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if (non_mpi) {
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/* no port is required since we won't be
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* communicating with the children
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*/
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port_name[0] = '\0';
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} else {
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/* Open a port. The port_name is passed as an environment
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variable to the children. */
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ompi_dpm.open_port (port_name);
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}
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if (OMPI_SUCCESS != (rc = ompi_dpm.spawn (1, &command, &argv, &maxprocs,
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&info, port_name))) {
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goto error;
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}
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if (!non_mpi) {
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tmp_port = ompi_dpm.parse_port (port_name, &tag);
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free(tmp_port);
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}
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}
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if (non_mpi) {
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newcomp = MPI_COMM_NULL;
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} else {
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rc = ompi_dpm.connect_accept (comm, root, NULL, send_first, &newcomp, tag);
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}
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error:
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OPAL_CR_EXIT_LIBRARY();
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/* close the port again. Nothing has to be done for that at the moment.*/
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/* set error codes */
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if (MPI_ERRCODES_IGNORE != array_of_errcodes) {
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for ( i=0; i < maxprocs; i++ ) {
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array_of_errcodes[i]=rc;
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}
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}
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*intercomm = newcomp;
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OMPI_ERRHANDLER_RETURN (rc, comm, rc, FUNC_NAME);
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}
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