root/ompi/mpi/c/cart_coords.c

DEFINITIONS

1. MPI_Cart_coords

   1 /*
   2  * Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
   3  *                         University Research and Technology
   4  *                         Corporation.  All rights reserved.
   5  * Copyright (c) 2004-2013 The University of Tennessee and The University
   6  *                         of Tennessee Research Foundation.  All rights
   7  *                         reserved.
   8  * Copyright (c) 2004-2008 High Performance Computing Center Stuttgart,
   9  *                         University of Stuttgart.  All rights reserved.
  10  * Copyright (c) 2004-2005 The Regents of the University of California.
  11  *                         All rights reserved.
  12  * Copyright (c) 2007      Cisco Systems, Inc.  All rights reserved.
  13  * Copyright (c) 2012      Los Alamos Nat Security, LLC. All rights reserved.
  14  * Copyright (c) 2012-2013 Inria.  All rights reserved.
  15  * Copyright (c) 2015      Research Organization for Information Science
  16  *                         and Technology (RIST). All rights reserved.
  17  * $COPYRIGHT$
  18  *
  19  * Additional copyrights may follow
  20  *
  21  * $HEADER$
  22  */
  23 #include "ompi_config.h"
  24 #include <stdio.h>
  25 
  26 #include "ompi/mpi/c/bindings.h"
  27 #include "ompi/runtime/params.h"
  28 #include "ompi/communicator/communicator.h"
  29 #include "ompi/errhandler/errhandler.h"
  30 #include "ompi/mca/topo/topo.h"
  31 #include "ompi/group/group.h"
  32 #include "ompi/memchecker.h"
  33 
  34 #if OMPI_BUILD_MPI_PROFILING
  35 #if OPAL_HAVE_WEAK_SYMBOLS
  36 #pragma weak MPI_Cart_coords = PMPI_Cart_coords
  37 #endif
  38 #define MPI_Cart_coords PMPI_Cart_coords
  39 #endif
  40 
  41 static const char FUNC_NAME[] = "MPI_Cart_coords";
  42 
  43 int MPI_Cart_coords(MPI_Comm comm, int rank, int maxdims, int coords[])
  44 {
  45     int err;
  46 
  47     MEMCHECKER(
  48         memchecker_comm(comm);
  49     );
  50 
  51     /* check the arguments */
  52     if (MPI_PARAM_CHECK) {
  53         OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
  54         if (ompi_comm_invalid(comm)) {
  55             return OMPI_ERRHANDLER_INVOKE (MPI_COMM_WORLD, MPI_ERR_COMM,
  56                                           FUNC_NAME);
  57         }
  58         if (OMPI_COMM_IS_INTER(comm)) {
  59             return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_COMM,
  60                                           FUNC_NAME);
  61         }
  62         if ( (0 > maxdims) || ((0 < maxdims) && (NULL == coords))) {
  63             return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_ARG,
  64                                           FUNC_NAME);
  65         }
  66         if ((0 > rank) || (rank > ompi_group_size(comm->c_local_group))) {
  67             return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_RANK,
  68                                           FUNC_NAME);
  69         }
  70     }
  71 
  72     if (!OMPI_COMM_IS_CART(comm)) {
  73         return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_TOPOLOGY,
  74                                       FUNC_NAME);
  75     }
  76     OPAL_CR_ENTER_LIBRARY();
  77 
  78     err = comm->c_topo->topo.cart.cart_coords(comm, rank, maxdims, coords);
  79     OPAL_CR_EXIT_LIBRARY();
  80 
  81     OMPI_ERRHANDLER_RETURN(err, comm, err, FUNC_NAME);
  82 }