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

DEFINITIONS

1. ompi_allreduce_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 #include "ompi/mpi/fortran/base/constants.h"
  26 
  27 #if OMPI_BUILD_MPI_PROFILING
  28 #if OPAL_HAVE_WEAK_SYMBOLS
  29 #pragma weak PMPI_ALLREDUCE = ompi_allreduce_f
  30 #pragma weak pmpi_allreduce = ompi_allreduce_f
  31 #pragma weak pmpi_allreduce_ = ompi_allreduce_f
  32 #pragma weak pmpi_allreduce__ = ompi_allreduce_f
  33 
  34 #pragma weak PMPI_Allreduce_f = ompi_allreduce_f
  35 #pragma weak PMPI_Allreduce_f08 = ompi_allreduce_f
  36 #else
  37 OMPI_GENERATE_F77_BINDINGS (PMPI_ALLREDUCE,
  38                            pmpi_allreduce,
  39                            pmpi_allreduce_,
  40                            pmpi_allreduce__,
  41                            pompi_allreduce_f,
  42                            (char *sendbuf, char *recvbuf, MPI_Fint *count, MPI_Fint *datatype, MPI_Fint *op, MPI_Fint *comm, MPI_Fint *ierr),
  43                            (sendbuf, recvbuf, count, datatype, op, comm, ierr) )
  44 #endif
  45 #endif
  46 
  47 #if OPAL_HAVE_WEAK_SYMBOLS
  48 #pragma weak MPI_ALLREDUCE = ompi_allreduce_f
  49 #pragma weak mpi_allreduce = ompi_allreduce_f
  50 #pragma weak mpi_allreduce_ = ompi_allreduce_f
  51 #pragma weak mpi_allreduce__ = ompi_allreduce_f
  52 
  53 #pragma weak MPI_Allreduce_f = ompi_allreduce_f
  54 #pragma weak MPI_Allreduce_f08 = ompi_allreduce_f
  55 #else
  56 #if ! OMPI_BUILD_MPI_PROFILING
  57 OMPI_GENERATE_F77_BINDINGS (MPI_ALLREDUCE,
  58                            mpi_allreduce,
  59                            mpi_allreduce_,
  60                            mpi_allreduce__,
  61                            ompi_allreduce_f,
  62                            (char *sendbuf, char *recvbuf, MPI_Fint *count, MPI_Fint *datatype, MPI_Fint *op, MPI_Fint *comm, MPI_Fint *ierr),
  63                            (sendbuf, recvbuf, count, datatype, op, comm, ierr) )
  64 #else
  65 #define ompi_allreduce_f pompi_allreduce_f
  66 #endif
  67 #endif
  68 
  69 
  70 void ompi_allreduce_f(char *sendbuf, char *recvbuf, MPI_Fint *count,
  71                      MPI_Fint *datatype, MPI_Fint *op, MPI_Fint *comm,
  72                      MPI_Fint *ierr)
  73 {
  74     int ierr_c;
  75     MPI_Comm c_comm;
  76     MPI_Datatype c_type;
  77     MPI_Op c_op;
  78 
  79     c_comm = PMPI_Comm_f2c(*comm);
  80     c_type = PMPI_Type_f2c(*datatype);
  81     c_op = PMPI_Op_f2c(*op);
  82 
  83     sendbuf = (char *) OMPI_F2C_IN_PLACE(sendbuf);
  84     sendbuf = (char *) OMPI_F2C_BOTTOM(sendbuf);
  85     recvbuf = (char *) OMPI_F2C_BOTTOM(recvbuf);
  86 
  87     ierr_c = PMPI_Allreduce(sendbuf, recvbuf,
  88                             OMPI_FINT_2_INT(*count),
  89                             c_type, c_op, c_comm);
  90     if (NULL != ierr) *ierr = OMPI_INT_2_FINT(ierr_c);
  91 }