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

DEFINITIONS

1. ompi_reduce_scatter_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_REDUCE_SCATTER = ompi_reduce_scatter_f
  30 #pragma weak pmpi_reduce_scatter = ompi_reduce_scatter_f
  31 #pragma weak pmpi_reduce_scatter_ = ompi_reduce_scatter_f
  32 #pragma weak pmpi_reduce_scatter__ = ompi_reduce_scatter_f
  33 
  34 #pragma weak PMPI_Reduce_scatter_f = ompi_reduce_scatter_f
  35 #pragma weak PMPI_Reduce_scatter_f08 = ompi_reduce_scatter_f
  36 #else
  37 OMPI_GENERATE_F77_BINDINGS (PMPI_REDUCE_SCATTER,
  38                            pmpi_reduce_scatter,
  39                            pmpi_reduce_scatter_,
  40                            pmpi_reduce_scatter__,
  41                            pompi_reduce_scatter_f,
  42                            (char *sendbuf, char *recvbuf, MPI_Fint *recvcounts, MPI_Fint *datatype, MPI_Fint *op, MPI_Fint *comm, MPI_Fint *ierr),
  43                            (sendbuf, recvbuf, recvcounts, datatype, op, comm, ierr) )
  44 #endif
  45 #endif
  46 
  47 #if OPAL_HAVE_WEAK_SYMBOLS
  48 #pragma weak MPI_REDUCE_SCATTER = ompi_reduce_scatter_f
  49 #pragma weak mpi_reduce_scatter = ompi_reduce_scatter_f
  50 #pragma weak mpi_reduce_scatter_ = ompi_reduce_scatter_f
  51 #pragma weak mpi_reduce_scatter__ = ompi_reduce_scatter_f
  52 
  53 #pragma weak MPI_Reduce_scatter_f = ompi_reduce_scatter_f
  54 #pragma weak MPI_Reduce_scatter_f08 = ompi_reduce_scatter_f
  55 #else
  56 #if ! OMPI_BUILD_MPI_PROFILING
  57 OMPI_GENERATE_F77_BINDINGS (MPI_REDUCE_SCATTER,
  58                            mpi_reduce_scatter,
  59                            mpi_reduce_scatter_,
  60                            mpi_reduce_scatter__,
  61                            ompi_reduce_scatter_f,
  62                            (char *sendbuf, char *recvbuf, MPI_Fint *recvcounts, MPI_Fint *datatype, MPI_Fint *op, MPI_Fint *comm, MPI_Fint *ierr),
  63                            (sendbuf, recvbuf, recvcounts, datatype, op, comm, ierr) )
  64 #else
  65 #define ompi_reduce_scatter_f pompi_reduce_scatter_f
  66 #endif
  67 #endif
  68 
  69 
  70 void ompi_reduce_scatter_f(char *sendbuf, char *recvbuf,
  71                           MPI_Fint *recvcounts, MPI_Fint *datatype,
  72                           MPI_Fint *op, MPI_Fint *comm, MPI_Fint *ierr)
  73 {
  74     int c_ierr;
  75     MPI_Comm c_comm;
  76     MPI_Datatype c_type;
  77     MPI_Op c_op;
  78     int size;
  79     OMPI_ARRAY_NAME_DECL(recvcounts);
  80 
  81     c_comm = PMPI_Comm_f2c(*comm);
  82     c_type = PMPI_Type_f2c(*datatype);
  83     c_op = PMPI_Op_f2c(*op);
  84 
  85     PMPI_Comm_size(c_comm, &size);
  86     OMPI_ARRAY_FINT_2_INT(recvcounts, size);
  87 
  88     sendbuf = (char *) OMPI_F2C_IN_PLACE(sendbuf);
  89     sendbuf = (char *) OMPI_F2C_BOTTOM(sendbuf);
  90     recvbuf = (char *) OMPI_F2C_BOTTOM(recvbuf);
  91 
  92     c_ierr = PMPI_Reduce_scatter(sendbuf, recvbuf,
  93                                 OMPI_ARRAY_NAME_CONVERT(recvcounts),
  94                                 c_type, c_op, c_comm);
  95    if (NULL != ierr) *ierr = OMPI_INT_2_FINT(c_ierr);
  96 }