root/ompi/mpi/fortran/mpif-h/start_f.c

DEFINITIONS

1. ompi_start_f

   1 /*
   2  * Copyright (c) 2004-2005 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) 2004-2005 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) 2011-2012 Cisco Systems, Inc.  All rights reserved.
  13  * Copyright (c) 2015      Research Organization for Information Science
  14  *                         and Technology (RIST). All rights reserved.
  15  * $COPYRIGHT$
  16  *
  17  * Additional copyrights may follow
  18  *
  19  * $HEADER$
  20  */
  21 
  22 #include "ompi_config.h"
  23 
  24 #include "ompi/mpi/fortran/mpif-h/bindings.h"
  25 
  26 #if OMPI_BUILD_MPI_PROFILING
  27 #if OPAL_HAVE_WEAK_SYMBOLS
  28 #pragma weak PMPI_START = ompi_start_f
  29 #pragma weak pmpi_start = ompi_start_f
  30 #pragma weak pmpi_start_ = ompi_start_f
  31 #pragma weak pmpi_start__ = ompi_start_f
  32 
  33 #pragma weak PMPI_Start_f = ompi_start_f
  34 #pragma weak PMPI_Start_f08 = ompi_start_f
  35 #else
  36 OMPI_GENERATE_F77_BINDINGS (PMPI_START,
  37                            pmpi_start,
  38                            pmpi_start_,
  39                            pmpi_start__,
  40                            pompi_start_f,
  41                            (MPI_Fint *request, MPI_Fint *ierr),
  42                            (request, ierr) )
  43 #endif
  44 #endif
  45 
  46 #if OPAL_HAVE_WEAK_SYMBOLS
  47 #pragma weak MPI_START = ompi_start_f
  48 #pragma weak mpi_start = ompi_start_f
  49 #pragma weak mpi_start_ = ompi_start_f
  50 #pragma weak mpi_start__ = ompi_start_f
  51 
  52 #pragma weak MPI_Start_f = ompi_start_f
  53 #pragma weak MPI_Start_f08 = ompi_start_f
  54 #else
  55 #if ! OMPI_BUILD_MPI_PROFILING
  56 OMPI_GENERATE_F77_BINDINGS (MPI_START,
  57                            mpi_start,
  58                            mpi_start_,
  59                            mpi_start__,
  60                            ompi_start_f,
  61                            (MPI_Fint *request, MPI_Fint *ierr),
  62                            (request, ierr) )
  63 #else
  64 #define ompi_start_f pompi_start_f
  65 #endif
  66 #endif
  67 
  68 
  69 void ompi_start_f(MPI_Fint *request, MPI_Fint *ierr)
  70 {
  71     int c_ierr;
  72     MPI_Request c_req = PMPI_Request_f2c(*request);
  73     MPI_Request tmp_req = c_req;
  74 
  75     c_ierr = PMPI_Start(&c_req);
  76     if (NULL != ierr) *ierr = OMPI_INT_2_FINT(c_ierr);
  77 
  78     if (MPI_SUCCESS == c_ierr) {
  79         /* For a persistent request, the underlying request descriptor could
  80            change (i.e. the old descriptor has not completed and cannot be
  81            reused).
  82            So commit new descriptor.
  83         */
  84         if ( tmp_req != c_req ) {
  85             *request = PMPI_Request_c2f(c_req);
  86         }
  87     }
  88 }