0b8fc13299
arrays. The MPI 3.0 standard added const to all in buffers in the C bindings. This commit adds the const keyword and in most cases casts const away. We will eventually should go through and update the various interfaces (coll, pml, io, etc) to take the const keyword. The group, comm, win, and datatype interfaces have been updated with const. cmr=v1.7.4:ticket=trac:3785:reviewer=jsquyres This commit was SVN r29266. The following Trac tickets were found above: Ticket 3785 --> https://svn.open-mpi.org/trac/ompi/ticket/3785
150 строки
4.9 KiB
C
150 строки
4.9 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) 2004-2008 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 (c) 2009 Sun Microsystems, 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/info/info.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/dpm/dpm.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_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(const 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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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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}
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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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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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}
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/* initialize the port name to avoid problems */
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memset(port_name, 0, MPI_MAX_PORT_NAME);
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/* See if the info key "ompi_non_mpi" was set to true */
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if (rank == root) {
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ompi_info_get_bool(info, "ompi_non_mpi", &non_mpi, &flag);
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}
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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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/* Open a port. The port_name is passed as an environment
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variable to the children. */
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if (OMPI_SUCCESS != (rc = ompi_dpm.open_port (port_name, OMPI_RML_TAG_INVALID))) {
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goto error;
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}
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} else if (1 < ompi_comm_size(comm)) {
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/* we do not support non_mpi spawns on comms this size */
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rc = OMPI_ERR_NOT_SUPPORTED;
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goto error;
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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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}
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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, port_name, send_first, &newcomp);
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}
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error:
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OPAL_CR_EXIT_LIBRARY();
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/* close the port */
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if (rank == root && !non_mpi) {
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ompi_dpm.close_port(port_name);
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}
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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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