86 строки
2.6 KiB
C
86 строки
2.6 KiB
C
/*
|
|
* Copyright (c) 2004-2007 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) 2004-2008 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 (c) 2007 Cisco, Inc. All rights reserved.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
#include "ompi_config.h"
|
|
#include <stdio.h>
|
|
|
|
#include "ompi/mpi/c/bindings.h"
|
|
#include "ompi/mca/topo/topo.h"
|
|
#include "ompi/include/ompi/memchecker.h"
|
|
|
|
#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
|
|
#pragma weak MPI_Graph_map = PMPI_Graph_map
|
|
#endif
|
|
|
|
#if OMPI_PROFILING_DEFINES
|
|
#include "ompi/mpi/c/profile/defines.h"
|
|
#endif
|
|
|
|
static const char FUNC_NAME[] = "MPI_Graph_map";
|
|
|
|
|
|
int MPI_Graph_map(MPI_Comm comm, int nnodes, int *index, int *edges,
|
|
int *newrank)
|
|
{
|
|
int err;
|
|
mca_topo_base_module_graph_map_fn_t func;
|
|
|
|
MEMCHECKER(
|
|
memchecker_comm(comm);
|
|
);
|
|
OPAL_CR_TEST_CHECKPOINT_READY();
|
|
|
|
/* check the arguments */
|
|
if (MPI_PARAM_CHECK) {
|
|
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
|
|
if (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 (1 > nnodes || NULL == index || NULL == edges || NULL == newrank) {
|
|
return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_ARG,
|
|
FUNC_NAME);
|
|
}
|
|
}
|
|
|
|
|
|
if(!OMPI_COMM_IS_GRAPH(comm)) {
|
|
/* In case the communicator has no topo-module attached to
|
|
it, we just return the "default" value suggested by MPI:
|
|
newrank = rank */
|
|
*newrank = ompi_comm_rank(comm);
|
|
}
|
|
else {
|
|
/* map the function pointer to do the right thing */
|
|
func = comm->c_topo->topo_graph_map;
|
|
|
|
/* call the function */
|
|
if ( MPI_SUCCESS !=
|
|
(err = func(comm, nnodes, index, edges, newrank))) {
|
|
return OMPI_ERRHANDLER_INVOKE(comm, err, FUNC_NAME);
|
|
}
|
|
}
|
|
|
|
/* All done */
|
|
return MPI_SUCCESS;
|
|
}
|