59cb626b7c
MPI_CART_RANK. This commit was SVN r19459. The following Trac tickets were found above: Ticket 1463 --> https://svn.open-mpi.org/trac/ompi/ticket/1463
107 строки
3.5 KiB
C
107 строки
3.5 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 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/mca/topo/topo.h"
|
|
#include "ompi/memchecker.h"
|
|
|
|
#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
|
|
#pragma weak MPI_Cart_rank = PMPI_Cart_rank
|
|
#endif
|
|
|
|
#if OMPI_PROFILING_DEFINES
|
|
#include "ompi/mpi/c/profile/defines.h"
|
|
#endif
|
|
|
|
static const char FUNC_NAME[] = "MPI_Cart_rank";
|
|
|
|
|
|
int MPI_Cart_rank(MPI_Comm comm, int *coords, int *rank)
|
|
{
|
|
int i, err;
|
|
mca_topo_base_module_cart_rank_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 ((NULL == coords) || (NULL == rank)){
|
|
return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_ARG,
|
|
FUNC_NAME);
|
|
}
|
|
|
|
/* Check if coords[i] is within the acceptable range if
|
|
dimension i is not periodic */
|
|
for (i = 0; i < comm->c_topo_comm->mtc_ndims_or_nnodes; ++i) {
|
|
if (!comm->c_topo_comm->mtc_periods_or_edges[i] &&
|
|
(coords[i] < 0 ||
|
|
coords[i] > comm->c_topo_comm->mtc_dims_or_index[i])) {
|
|
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
|
|
}
|
|
}
|
|
}
|
|
|
|
OPAL_CR_ENTER_LIBRARY();
|
|
|
|
/* Normalize any coords[i] that is outside the appropriate range
|
|
for dimensions that are periodic */
|
|
for (i = 0; i < comm->c_topo_comm->mtc_ndims_or_nnodes; ++i) {
|
|
if (comm->c_topo_comm->mtc_periods_or_edges[i] &&
|
|
(coords[i] < 0 ||
|
|
coords[i] >= comm->c_topo_comm->mtc_dims_or_index[i])) {
|
|
if (coords[i] < 0) {
|
|
coords[i] = (-coords[i]) %
|
|
comm->c_topo_comm->mtc_dims_or_index[i];
|
|
coords[i] = comm->c_topo_comm->mtc_dims_or_index[i] - coords[i];
|
|
} else {
|
|
coords[i] = coords[i] % comm->c_topo_comm->mtc_dims_or_index[i];
|
|
}
|
|
}
|
|
}
|
|
|
|
/* get the function pointer on this communicator */
|
|
func = comm->c_topo->topo_cart_rank;
|
|
|
|
/* call the function */
|
|
err = func(comm, coords, rank);
|
|
OPAL_CR_EXIT_LIBRARY();
|
|
if ( MPI_SUCCESS != err ) {
|
|
return OMPI_ERRHANDLER_INVOKE(comm, err, FUNC_NAME);
|
|
}
|
|
|
|
return MPI_SUCCESS;
|
|
}
|