1 /* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
2 /*
3 * Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
4 * University Research and Technology
5 * Corporation. All rights reserved.
6 * Copyright (c) 2004-2013 The University of Tennessee and The University
7 * of Tennessee Research Foundation. All rights
8 * reserved.
9 * Copyright (c) 2004-2008 High Performance Computing Center Stuttgart,
10 * University of Stuttgart. All rights reserved.
11 * Copyright (c) 2004-2005 The Regents of the University of California.
12 * All rights reserved.
13 * Copyright (c) 2007-2009 Cisco Systems, Inc. All rights reserved.
14 * Copyright (c) 2012-2013 Los Alamos National Security, LLC. All rights
15 * reserved.
16 * Copyright (c) 2012-2013 Inria. All rights reserved.
17 * Copyright (c) 2014-2015 Research Organization for Information Science
18 * and Technology (RIST). All rights reserved.
19 * $COPYRIGHT$
20 *
21 * Additional copyrights may follow
22 *
23 * $HEADER$
24 */
25 #include "ompi_config.h"
26 #include <stdio.h>
27
28 #include "ompi/mpi/c/bindings.h"
29 #include "ompi/runtime/params.h"
30 #include "ompi/communicator/communicator.h"
31 #include "ompi/errhandler/errhandler.h"
32 #include "ompi/mca/topo/topo.h"
33 #include "ompi/memchecker.h"
34
35 #if OMPI_BUILD_MPI_PROFILING
36 #if OPAL_HAVE_WEAK_SYMBOLS
37 #pragma weak MPI_Cart_sub = PMPI_Cart_sub
38 #endif
39 #define MPI_Cart_sub PMPI_Cart_sub
40 #endif
41
42 static const char FUNC_NAME[] = "MPI_Cart_sub";
43
44
45 int MPI_Cart_sub(MPI_Comm comm, const int remain_dims[], MPI_Comm *new_comm)
46 {
47 int err;
48
49 MEMCHECKER(
50 memchecker_comm(comm);
51 );
52
53 /* check the arguments */
54 if (MPI_PARAM_CHECK) {
55 OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
56 if (ompi_comm_invalid(comm)) {
57 return OMPI_ERRHANDLER_INVOKE (MPI_COMM_WORLD, MPI_ERR_COMM,
58 FUNC_NAME);
59 }
60 if (OMPI_COMM_IS_INTER(comm)) {
61 return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_COMM,
62 FUNC_NAME);
63 }
64 if (((NULL == remain_dims) && (0 != comm->c_topo->mtc.cart->ndims))
65 && (NULL == new_comm)) {
66 return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_ARG,
67 FUNC_NAME);
68 }
69 }
70
71 if (!OMPI_COMM_IS_CART(comm)) {
72 return OMPI_ERRHANDLER_INVOKE (comm, MPI_ERR_TOPOLOGY,
73 FUNC_NAME);
74 }
75 OPAL_CR_ENTER_LIBRARY();
76
77 err = comm->c_topo->topo.cart.cart_sub(comm, remain_dims, new_comm);
78 OPAL_CR_EXIT_LIBRARY();
79
80 OMPI_ERRHANDLER_RETURN(err, comm, err, FUNC_NAME);
81 }