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/*
* 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 Systems, 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/runtime/params.h"
#include "ompi/communicator/communicator.h"
#include "ompi/errhandler/errhandler.h"
#include "ompi/mca/topo/topo.h"
#include "ompi/memchecker.h"
#if OPAL_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_Cart_shift = PMPI_Cart_shift
#endif
#if OMPI_PROFILING_DEFINES
#include "ompi/mpi/c/profile/defines.h"
#endif
static const char FUNC_NAME[] = "MPI_Cart_shift";
int MPI_Cart_shift(MPI_Comm comm, int direction, int disp,
int *rank_source, int *rank_dest)
{
int err;
mca_topo_base_module_cart_shift_fn_t func;
MEMCHECKER(
memchecker_comm(comm);
);
/* 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 (!OMPI_COMM_IS_CART(comm)) {
return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_TOPOLOGY,
FUNC_NAME);
}
if (0 > direction) { /* yet to detect direction >= comm->c_topo_ndims */
return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_DIMS,
FUNC_NAME);
}
if (NULL == rank_source || NULL == rank_dest) {
return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_ARG,
FUNC_NAME);
}
}
OPAL_CR_ENTER_LIBRARY();
/* get the function pointer on this communicator */
func = comm->c_topo->topo_cart_shift;
/* call the function */
err = func(comm, direction, disp, rank_source, rank_dest);
OPAL_CR_EXIT_LIBRARY();
if ( MPI_SUCCESS != err ) {
return OMPI_ERRHANDLER_INVOKE(comm, err, FUNC_NAME);
}
/* all done */
return MPI_SUCCESS;
}
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