root/ompi/mpi/c/type_create_resized.c

DEFINITIONS

1. MPI_Type_create_resized

   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) 2004-2005 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) 2015      Research Organization for Information Science
  13  *                         and Technology (RIST). All rights reserved.
  14  * $COPYRIGHT$
  15  *
  16  * Additional copyrights may follow
  17  *
  18  * $HEADER$
  19  */
  20 
  21 #include "ompi_config.h"
  22 
  23 #include "ompi/mpi/c/bindings.h"
  24 #include "ompi/runtime/params.h"
  25 #include "ompi/communicator/communicator.h"
  26 #include "ompi/errhandler/errhandler.h"
  27 #include "ompi/datatype/ompi_datatype.h"
  28 #include "ompi/memchecker.h"
  29 
  30 #if OMPI_BUILD_MPI_PROFILING
  31 #if OPAL_HAVE_WEAK_SYMBOLS
  32 #pragma weak MPI_Type_create_resized = PMPI_Type_create_resized
  33 #endif
  34 #define MPI_Type_create_resized PMPI_Type_create_resized
  35 #endif
  36 
  37 static const char FUNC_NAME[] = "MPI_Type_create_resized";
  38 
  39 
  40 int MPI_Type_create_resized(MPI_Datatype oldtype,
  41                             MPI_Aint lb,
  42                             MPI_Aint extent,
  43                             MPI_Datatype *newtype)
  44 {
  45    int rc;
  46 
  47    MEMCHECKER(
  48       memchecker_datatype(oldtype);
  49    );
  50 
  51    if( MPI_PARAM_CHECK ) {
  52       OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
  53       if (NULL == oldtype || MPI_DATATYPE_NULL == oldtype ||
  54           NULL == newtype) {
  55         return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_TYPE,
  56                                       FUNC_NAME );
  57       }
  58    }
  59 
  60    OPAL_CR_ENTER_LIBRARY();
  61 
  62    rc = ompi_datatype_create_resized( oldtype, lb, extent, newtype );
  63    if( rc != MPI_SUCCESS ) {
  64       ompi_datatype_destroy( newtype );
  65       OMPI_ERRHANDLER_RETURN( rc, MPI_COMM_WORLD, rc, FUNC_NAME );
  66    }
  67 
  68    {
  69       MPI_Aint a_a[2];
  70       a_a[0] = lb;
  71       a_a[1] = extent;
  72       ompi_datatype_set_args( *newtype, 0, NULL, 2, a_a, 1, &oldtype, MPI_COMBINER_RESIZED );
  73    }
  74 
  75    OPAL_CR_EXIT_LIBRARY();
  76    return MPI_SUCCESS;
  77 }
  78 
  79