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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2013 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) 2007-2015 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2012-2013 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2012-2013 Inria. All rights reserved.
* Copyright (c) 2014-2015 Research Organization for Information Science
* and Technology (RIST). 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 OMPI_BUILD_MPI_PROFILING
#if OPAL_HAVE_WEAK_SYMBOLS
#pragma weak MPI_Cart_rank = PMPI_Cart_rank
#endif
#define MPI_Cart_rank PMPI_Cart_rank
#endif
static const char FUNC_NAME[] = "MPI_Cart_rank";
int MPI_Cart_rank(MPI_Comm comm, const int coords[], int *rank)
{
int i, err;
MEMCHECKER(
memchecker_comm(comm);
);
/* check the arguments */
if (MPI_PARAM_CHECK) {
mca_topo_base_comm_cart_2_2_0_t* cart;
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);
}
/* Need this check here to protect the access to "cart",
below. I.e., if OMPI_COMM_IS_CART is true, then cart is
guaranteed to be != NULL. */
if (!OMPI_COMM_IS_CART(comm)) {
return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_TOPOLOGY,
FUNC_NAME);
}
cart = comm->c_topo->mtc.cart;
/* Per MPI-2.1, coords is only relevant if the dimension of
the cartesian comm is >0 */
if (((NULL == coords) &&
(cart->ndims >= 1)) ||
(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 < cart->ndims; ++i) {
if (!cart->periods[i] &&
(coords[i] < 0 ||
coords[i] >= cart->dims[i])) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
}
}
} else {
/* Need to always test for cartesian communicators, even in
the !MPI_PARAM_CHECK case. */
if (!OMPI_COMM_IS_CART(comm)) {
return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_TOPOLOGY,
FUNC_NAME);
}
}
err = comm->c_topo->topo.cart.cart_rank(comm, coords, rank);
OMPI_ERRHANDLER_RETURN(err, comm, err, FUNC_NAME);
}
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