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openmpi/ompi/mpi/c/comm_spawn_multiple.c
Brian Barrett 566a050c23 Next step in the project split, mainly source code re-arranging
- move files out of toplevel include/ and etc/, moving it into the
    sub-projects
  - rather than including config headers with <project>/include, 
    have them as <project>
  - require all headers to be included with a project prefix, with
    the exception of the config headers ({opal,orte,ompi}_config.h
    mpi.h, and mpif.h)

This commit was SVN r8985.
2006-02-12 01:33:29 +00:00

140 строки
5.0 KiB
C

/*
* Copyright (c) 2004-2005 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) 2004-2005 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.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <stdio.h>
#include "ompi/mpi/c/bindings.h"
#include "ompi/info/info.h"
#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_Comm_spawn_multiple = PMPI_Comm_spawn_multiple
#endif
#if OMPI_PROFILING_DEFINES
#include "ompi/mpi/c/profile/defines.h"
#endif
static const char FUNC_NAME[] = "MPI_Comm_spawn_multiple";
int MPI_Comm_spawn_multiple(int count, char **array_of_commands, char ***array_of_argv,
int *array_of_maxprocs, MPI_Info *array_of_info,
int root, MPI_Comm comm, MPI_Comm *intercomm,
int *array_of_errcodes)
{
int i=0, rc=0, rank=0;
ompi_communicator_t *newcomp=NULL;
int send_first=0; /* they are contacting us first */
char port_name[MPI_MAX_PORT_NAME];
char *tmp_port;
orte_rml_tag_t tag = 0;
if ( MPI_PARAM_CHECK ) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
if ( MPI_COMM_NULL == comm || ompi_comm_invalid (comm)) {
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM,
FUNC_NAME);
}
if ( OMPI_COMM_IS_INTER(comm)) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_COMM,
FUNC_NAME);
}
if ( (0 > root) || (ompi_comm_size(comm) <= root) ) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG,
FUNC_NAME);
}
if ( NULL == intercomm ) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG,
FUNC_NAME);
}
if ( NULL == array_of_errcodes ) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG,
FUNC_NAME);
}
if (NULL == array_of_info) {
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_INFO,
FUNC_NAME);
}
for (i = 0; i < count; ++i) {
if (NULL == array_of_info[i] ||
ompi_info_is_freed(array_of_info[i])) {
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_INFO,
FUNC_NAME);
}
}
}
rank = ompi_comm_rank ( comm );
if ( MPI_PARAM_CHECK ) {
if ( rank == root ) {
if ( 0 > count ) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG,
FUNC_NAME);
}
if ( NULL == array_of_commands ) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG,
FUNC_NAME);
}
if ( NULL == array_of_maxprocs ) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG,
FUNC_NAME);
}
if ( NULL == array_of_info ) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG,
FUNC_NAME);
}
for ( i=0; i<count; i++ ) {
if ( NULL == array_of_commands[i] ) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG,
FUNC_NAME);
}
if ( 0 > array_of_maxprocs[i] ) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG,
FUNC_NAME);
}
}
}
}
if ( rank == root ) {
/* Open a port. The port_name is passed as an environment variable
to the children. */
ompi_open_port (port_name);
ompi_comm_start_processes(count, array_of_commands,
array_of_argv, array_of_maxprocs,
array_of_info, port_name);
tmp_port = ompi_parse_port (port_name, &tag);
free(tmp_port);
}
rc = ompi_comm_connect_accept (comm, root, NULL, send_first, &newcomp, tag);
/* close the port again. Nothing has to be done for that at the moment.*/
/* set array of errorcodes */
if (MPI_ERRCODES_IGNORE != array_of_errcodes) {
for ( i=0; i < newcomp->c_remote_group->grp_proc_count; i++ ) {
array_of_errcodes[i]=rc;
}
}
*intercomm = newcomp;
OMPI_ERRHANDLER_RETURN (rc, comm, rc, FUNC_NAME);
}