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/*
* 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/mca/topo/topo.h"
#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_Cart_map = PMPI_Cart_map
#endif
#if OMPI_PROFILING_DEFINES
#include "ompi/mpi/c/profile/defines.h"
#endif
static const char FUNC_NAME[] = "MPI_Cart_map";
int MPI_Cart_map(MPI_Comm comm, int ndims, int *dims,
int *periods, int *newrank)
{
int err;
mca_topo_base_module_cart_map_fn_t func;
/* check the arguments */
if (MPI_PARAM_CHECK) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
if (MPI_COMM_NULL == 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 ((NULL == dims) || (NULL == periods) || (NULL == newrank)) {
return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_ARG,
FUNC_NAME);
}
}
if(!OMPI_COMM_IS_CART(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 {
/* get the function pointer on this communicator */
func = comm->c_topo->topo_cart_map;
/* call the function */
if ( MPI_SUCCESS !=
(err = func(comm, ndims, dims, periods, newrank))) {
return OMPI_ERRHANDLER_INVOKE(comm, err, FUNC_NAME);
}
}
return MPI_SUCCESS;
}
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