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
126 строки
4.5 KiB
C
126 строки
4.5 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) 2004-2012 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) 2007 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2012-2013 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/memchecker.h"
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#if OPAL_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
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#pragma weak MPI_Alltoallv = PMPI_Alltoallv
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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_Alltoallv";
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int MPI_Alltoallv(const void *sendbuf, const int sendcounts[],
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const int sdispls[], MPI_Datatype sendtype,
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void *recvbuf, const int recvcounts[], const int rdispls[],
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MPI_Datatype recvtype, MPI_Comm comm)
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{
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int i, size, err;
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MEMCHECKER(
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ptrdiff_t recv_ext;
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ptrdiff_t send_ext;
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size = ompi_comm_remote_size(comm);
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ompi_datatype_type_extent(recvtype, &recv_ext);
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ompi_datatype_type_extent(sendtype, &send_ext);
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memchecker_datatype(sendtype);
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memchecker_datatype(recvtype);
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memchecker_comm(comm);
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for ( i = 0; i < size; i++ ) {
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/* check if send chunks are defined. */
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memchecker_call(&opal_memchecker_base_isdefined,
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(char *)(sendbuf)+sdispls[i]*send_ext,
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sendcounts[i], sendtype);
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/* check if receive chunks are addressable. */
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memchecker_call(&opal_memchecker_base_isaddressable,
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(char *)(recvbuf)+rdispls[i]*recv_ext,
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recvcounts[i], recvtype);
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}
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);
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if (MPI_PARAM_CHECK) {
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/* Unrooted operation -- same checks for all ranks */
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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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}
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if (MPI_IN_PLACE == sendbuf) {
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sendcounts = recvcounts;
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sdispls = rdispls;
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sendtype = recvtype;
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}
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if ((NULL == sendcounts) || (NULL == sdispls) ||
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(NULL == recvcounts) || (NULL == rdispls) ||
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MPI_IN_PLACE == recvbuf) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
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}
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/* We always define the remote group to be the same as the local
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group in the case of an intracommunicator, so it's safe to
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get the size of the remote group here for both intra- and
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intercommunicators */
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size = ompi_comm_remote_size(comm);
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for (i = 0; i < size; ++i) {
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if (recvcounts[i] < 0) {
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err = MPI_ERR_COUNT;
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} else if (MPI_DATATYPE_NULL == recvtype || NULL == recvtype) {
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err = MPI_ERR_TYPE;
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} else {
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OMPI_CHECK_DATATYPE_FOR_SEND(err, sendtype, sendcounts[i]);
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}
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OMPI_ERRHANDLER_CHECK(err, comm, err, FUNC_NAME);
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}
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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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/* XXX -- CONST -- do not cast away const -- update mca/coll */
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err = comm->c_coll.coll_alltoallv((void *) sendbuf, (int *) sendcounts, (int *) sdispls, sendtype,
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recvbuf, (int *) recvcounts, (int *) rdispls, recvtype,
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comm, comm->c_coll.coll_alltoallv_module);
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OMPI_ERRHANDLER_RETURN(err, comm, err, FUNC_NAME);
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}
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