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
116 строки
4.1 KiB
C
116 строки
4.1 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) 2004-2012 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) 2007-2012 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2012-2013 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/topo/base/base.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_Graph_create = PMPI_Graph_create
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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_Graph_create";
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int MPI_Graph_create(MPI_Comm old_comm, int nnodes, const int indx[],
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const int edges[], int reorder, MPI_Comm *comm_graph)
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{
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mca_topo_base_module_t* topo;
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int err;
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MEMCHECKER(
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memchecker_comm(old_comm);
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);
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/* check the arguments */
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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(old_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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} else if (OMPI_COMM_IS_INTER(old_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 (nnodes < 0) {
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return OMPI_ERRHANDLER_INVOKE (old_comm, MPI_ERR_ARG,
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FUNC_NAME);
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} else if (nnodes >= 1 && ((NULL == indx) || (NULL == edges))) {
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return OMPI_ERRHANDLER_INVOKE (old_comm, MPI_ERR_ARG,
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FUNC_NAME);
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}
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if (nnodes > ompi_comm_size(old_comm)) {
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return OMPI_ERRHANDLER_INVOKE (old_comm, MPI_ERR_ARG,
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FUNC_NAME);
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}
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}
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/* MPI-2.1 7.5.3 states that if nnodes == 0, all processes should
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get MPI_COMM_NULL */
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if (0 == nnodes) {
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*comm_graph = MPI_COMM_NULL;
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return MPI_SUCCESS;
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}
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if( nnodes > old_comm->c_local_group->grp_proc_count ) {
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return OMPI_ERRHANDLER_INVOKE (old_comm, MPI_ERR_ARG,
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FUNC_NAME);
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}
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OPAL_CR_ENTER_LIBRARY();
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/*
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* everything seems to be alright with the communicator, we can go
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* ahead and select a topology module for this purpose and create
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* the new graph communicator
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*/
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if (OMPI_SUCCESS != (err = mca_topo_base_comm_select(old_comm,
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NULL,
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&topo,
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OMPI_COMM_GRAPH))) {
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return err;
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}
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/* Now let that topology module rearrange procs/ranks if it wants to */
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/* XXX -- CONST -- do not cast away const -- update mca/topo */
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err = topo->topo.graph.graph_create(topo, old_comm,
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nnodes, (int *) indx, (int *) edges,
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(0 == reorder) ? false : true, comm_graph);
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OPAL_CR_EXIT_LIBRARY();
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if (MPI_SUCCESS != err) {
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OBJ_RELEASE(topo);
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return OMPI_ERRHANDLER_INVOKE(old_comm, err, FUNC_NAME);
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}
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/* All done */
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return MPI_SUCCESS;
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}
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