0b8fc13299
arrays. The MPI 3.0 standard added const to all in buffers in the C bindings. This commit adds the const keyword and in most cases casts const away. We will eventually should go through and update the various interfaces (coll, pml, io, etc) to take the const keyword. The group, comm, win, and datatype interfaces have been updated with const. cmr=v1.7.4:ticket=trac:3785:reviewer=jsquyres This commit was SVN r29266. The following Trac tickets were found above: Ticket 3785 --> https://svn.open-mpi.org/trac/ompi/ticket/3785
107 строки
3.7 KiB
C
107 строки
3.7 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2008 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2013 Los Alamos National Security, LLC. All rights
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* reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include <stdio.h>
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#include "ompi/mpi/c/bindings.h"
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#include "ompi/runtime/params.h"
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#include "ompi/communicator/communicator.h"
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#include "ompi/errhandler/errhandler.h"
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#include "ompi/datatype/ompi_datatype.h"
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#include "ompi/op/op.h"
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#include "ompi/memchecker.h"
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#if OPAL_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
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#pragma weak MPI_Iallreduce = PMPI_Iallreduce
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#endif
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#if OMPI_PROFILING_DEFINES
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#include "ompi/mpi/c/profile/defines.h"
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#endif
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static const char FUNC_NAME[] = "MPI_Iallreduce";
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int MPI_Iallreduce(const void *sendbuf, void *recvbuf, int count,
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MPI_Datatype datatype, MPI_Op op, MPI_Comm comm, MPI_Request *request)
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{
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int err;
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MEMCHECKER(
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memchecker_datatype(datatype);
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memchecker_comm(comm);
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/* check whether receive buffer is defined. */
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memchecker_call(&opal_memchecker_base_isaddressable, recvbuf, count, datatype);
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/* check whether the actual send buffer is defined. */
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if (MPI_IN_PLACE == sendbuf) {
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memchecker_call(&opal_memchecker_base_isdefined, recvbuf, count, datatype);
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} else {
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memchecker_call(&opal_memchecker_base_isdefined, sendbuf, count, datatype);
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}
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);
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if (MPI_PARAM_CHECK) {
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char *msg;
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/* Unrooted operation -- same checks for all ranks on both
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intracommunicators and intercommunicators */
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err = MPI_SUCCESS;
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OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
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if (ompi_comm_invalid(comm)) {
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return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM,
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FUNC_NAME);
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} else if (MPI_OP_NULL == op) {
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err = MPI_ERR_OP;
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} else if (!ompi_op_is_valid(op, datatype, &msg, FUNC_NAME)) {
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int ret = OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_OP, msg);
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free(msg);
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return ret;
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} else if( MPI_IN_PLACE == recvbuf ) {
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return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_BUFFER,
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FUNC_NAME);
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} else if( (sendbuf == recvbuf) &&
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(MPI_BOTTOM != sendbuf) &&
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(count > 1) ) {
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return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_BUFFER,
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FUNC_NAME);
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} else {
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OMPI_CHECK_DATATYPE_FOR_SEND(err, datatype, count);
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}
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OMPI_ERRHANDLER_CHECK(err, comm, err, FUNC_NAME);
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}
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OPAL_CR_ENTER_LIBRARY();
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/* Invoke the coll component to perform the back-end operation */
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OBJ_RETAIN(op);
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/* XXX -- CONST -- do not cast away const -- update mca/coll */
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err = comm->c_coll.coll_iallreduce((void *) sendbuf, recvbuf, count, datatype,
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op, comm, request, comm->c_coll.coll_iallreduce_module);
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OBJ_RELEASE(op);
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OMPI_ERRHANDLER_RETURN(err, comm, err, FUNC_NAME);
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}
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