135 строки
4.8 KiB
C
135 строки
4.8 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) 2004-2005 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 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/mpi/c/bindings.h"
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#include "ompi/info/info.h"
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#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
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#pragma weak MPI_Comm_spawn_multiple = PMPI_Comm_spawn_multiple
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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_multiple";
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int MPI_Comm_spawn_multiple(int count, char **array_of_commands, char ***array_of_argv,
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int *array_of_maxprocs, MPI_Info *array_of_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 i=0, rc=0, rank=0;
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ompi_communicator_t *newcomp=NULL;
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int send_first=0; /* they are contacting us first */
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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 = 0;
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OPAL_CR_TEST_CHECKPOINT_READY();
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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, 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, 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, FUNC_NAME);
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}
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if (NULL == array_of_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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for (i = 0; i < count; ++i) {
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if (NULL == array_of_info[i] ||
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ompi_info_is_freed(array_of_info[i])) {
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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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}
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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 ( 0 > count ) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
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}
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if ( NULL == array_of_commands ) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
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}
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if ( NULL == array_of_maxprocs ) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
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}
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if ( NULL == array_of_info ) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
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}
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for ( i=0; i<count; i++ ) {
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if ( NULL == array_of_commands[i] ) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
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}
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if ( 0 > array_of_maxprocs[i] ) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
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}
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}
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}
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}
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if ( rank == root ) {
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/* Open a port. The port_name is passed as an environment variable
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* to the children. */
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ompi_open_port (port_name);
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if (OMPI_SUCCESS != (rc = ompi_comm_start_processes(count, array_of_commands,
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array_of_argv, array_of_maxprocs,
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array_of_info, port_name))) {
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goto error;
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}
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tmp_port = ompi_parse_port (port_name, &tag);
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free(tmp_port);
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}
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rc = ompi_comm_connect_accept (comm, root, NULL, send_first, &newcomp, tag);
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error:
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/* close the port again. Nothing has to be done for that at the moment.*/
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/* set array of errorcodes */
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if (MPI_ERRCODES_IGNORE != array_of_errcodes) {
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for ( i=0; i < newcomp->c_remote_group->grp_proc_count; 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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