root/ompi/mpi/c/type_create_indexed_block.c

DEFINITIONS

1. MPI_Type_create_indexed_block

   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) 2004-2005 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) 2013      Los Alamos National Security, LLC.  All rights
  14  *                         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 
  24 #include "ompi_config.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/datatype/ompi_datatype.h"
  31 #include "ompi/memchecker.h"
  32 
  33 #if OMPI_BUILD_MPI_PROFILING
  34 #if OPAL_HAVE_WEAK_SYMBOLS
  35 #pragma weak MPI_Type_create_indexed_block = PMPI_Type_create_indexed_block
  36 #endif
  37 #define MPI_Type_create_indexed_block PMPI_Type_create_indexed_block
  38 #endif
  39 
  40 static const char FUNC_NAME[] = "MPI_Type_create_indexed_block";
  41 
  42 
  43 int MPI_Type_create_indexed_block(int count,
  44                                   int blocklength,
  45                                   const int array_of_displacements[],
  46                                   MPI_Datatype oldtype,
  47                                   MPI_Datatype *newtype)
  48 {
  49     int rc;
  50 
  51     MEMCHECKER(
  52         memchecker_datatype(oldtype);
  53         );
  54 
  55     if( MPI_PARAM_CHECK ) {
  56         OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
  57         if( count < 0 ) {
  58             return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COUNT,
  59                                           FUNC_NAME);
  60         } else if( (count > 0) && (blocklength < 0 || NULL == array_of_displacements) ) {
  61             return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_ARG,
  62                                           FUNC_NAME );
  63         } else if (NULL == oldtype || MPI_DATATYPE_NULL == oldtype ||
  64                    NULL == newtype) {
  65             return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_TYPE,
  66                                           FUNC_NAME );
  67         }
  68     }
  69 
  70     OPAL_CR_ENTER_LIBRARY();
  71 
  72     rc = ompi_datatype_create_indexed_block( count, blocklength, array_of_displacements,
  73                                              oldtype, newtype );
  74     if( rc != MPI_SUCCESS ) {
  75         ompi_datatype_destroy( newtype );
  76         OMPI_ERRHANDLER_RETURN( rc, MPI_COMM_WORLD, rc, FUNC_NAME );
  77     }
  78     {
  79         const int* a_i[3] = {&count, &blocklength, array_of_displacements};
  80 
  81         ompi_datatype_set_args( *newtype, 2 + count, a_i, 0, NULL, 1, &oldtype,
  82                                 MPI_COMBINER_INDEXED_BLOCK );
  83     }
  84 
  85     OPAL_CR_EXIT_LIBRARY();
  86     return MPI_SUCCESS;
  87 }