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
201 строка
7.9 KiB
C
201 строка
7.9 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) 2006-2012 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_Gatherv = PMPI_Gatherv
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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_Gatherv";
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int MPI_Gatherv(const void *sendbuf, int sendcount, MPI_Datatype sendtype,
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void *recvbuf, const int recvcounts[], const int displs[],
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MPI_Datatype recvtype, int root, MPI_Comm comm)
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{
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int i, size, err;
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MEMCHECKER(
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int rank;
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ptrdiff_t ext;
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size = ompi_comm_remote_size(comm);
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rank = ompi_comm_rank(comm);
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ompi_datatype_type_extent(recvtype, &ext);
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memchecker_comm(comm);
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if(OMPI_COMM_IS_INTRA(comm)) {
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if(ompi_comm_rank(comm) == root) {
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/* check whether root's send buffer is defined. */
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if (MPI_IN_PLACE == sendbuf) {
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for (i = 0; i < size; i++) {
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memchecker_call(&opal_memchecker_base_isdefined,
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(char *)(recvbuf)+displs[i]*ext,
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recvcounts[i], recvtype);
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}
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} else {
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memchecker_datatype(sendtype);
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memchecker_call(&opal_memchecker_base_isdefined, sendbuf, sendcount, sendtype);
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}
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memchecker_datatype(recvtype);
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/* check whether root's receive buffer is addressable. */
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for (i = 0; i < size; i++) {
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memchecker_call(&opal_memchecker_base_isaddressable,
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(char *)(recvbuf)+displs[i]*ext,
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recvcounts[i], recvtype);
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}
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} else {
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memchecker_datatype(sendtype);
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/* check whether send buffer is defined on other processes. */
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memchecker_call(&opal_memchecker_base_isdefined, sendbuf, sendcount, sendtype);
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}
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} else {
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if (MPI_ROOT == root) {
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memchecker_datatype(recvtype);
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/* check whether root's receive buffer is addressable. */
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for (i = 0; i < size; i++) {
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memchecker_call(&opal_memchecker_base_isaddressable,
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(char *)(recvbuf)+displs[i]*ext,
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recvcounts[i], recvtype);
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}
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} else if (MPI_PROC_NULL != root) {
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memchecker_datatype(sendtype);
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/* check whether send buffer is defined. */
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memchecker_call(&opal_memchecker_base_isdefined, sendbuf, sendcount, sendtype);
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}
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}
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);
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if (MPI_PARAM_CHECK) {
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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 ((ompi_comm_rank(comm) != root && MPI_IN_PLACE == sendbuf) ||
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(ompi_comm_rank(comm) == root && 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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/* Errors for intracommunicators */
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if (OMPI_COMM_IS_INTRA(comm)) {
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/* Errors for all ranks */
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if ((root >= ompi_comm_size(comm)) || (root < 0)) {
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err = MPI_ERR_ROOT;
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} else if (MPI_IN_PLACE != sendbuf) {
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OMPI_CHECK_DATATYPE_FOR_SEND(err, sendtype, sendcount);
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}
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OMPI_ERRHANDLER_CHECK(err, comm, err, FUNC_NAME);
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/* Errors for the root. Some of these could have been
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combined into compound if statements above, but since
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this whole section can be compiled out (or turned off at
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run time) for efficiency, it's more clear to separate
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them out into individual tests. */
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if (ompi_comm_rank(comm) == root) {
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if (NULL == displs) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
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}
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if (NULL == recvcounts) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_COUNT, FUNC_NAME);
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}
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size = ompi_comm_size(comm);
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for (i = 0; i < size; ++i) {
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if (recvcounts[i] < 0) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_COUNT, FUNC_NAME);
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} else if (MPI_DATATYPE_NULL == recvtype || NULL == recvtype) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_TYPE, FUNC_NAME);
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}
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}
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}
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}
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/* Errors for intercommunicators */
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else {
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if (! ((root >= 0 && root < ompi_comm_remote_size(comm)) ||
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MPI_ROOT == root || MPI_PROC_NULL == root)) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ROOT, FUNC_NAME);
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}
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/* Errors for the senders */
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if (MPI_ROOT != root && MPI_PROC_NULL != root) {
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OMPI_CHECK_DATATYPE_FOR_SEND(err, sendtype, sendcount);
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OMPI_ERRHANDLER_CHECK(err, comm, err, FUNC_NAME);
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}
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/* Errors for the root. Ditto on the comment above -- these
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error checks could have been combined above, but let's
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make the code easier to read. */
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else if (MPI_ROOT == root) {
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if (NULL == displs) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
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}
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if (NULL == recvcounts) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_COUNT, FUNC_NAME);
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}
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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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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_COUNT, FUNC_NAME);
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} else if (MPI_DATATYPE_NULL == recvtype || NULL == recvtype) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_TYPE, FUNC_NAME);
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}
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}
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}
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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_gatherv((void *) sendbuf, sendcount, sendtype, recvbuf,
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(int *) recvcounts, (int *) displs,
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recvtype, root, comm,
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comm->c_coll.coll_gatherv_module);
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OMPI_ERRHANDLER_RETURN(err, comm, err, FUNC_NAME);
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}
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