a0782e1c7e
inter communicators (fail with MPI_ERR_COMM) or non process topologies communicators (fail with MPI_ERR_TOPOLOGY)
126 строки
4.9 KiB
C
126 строки
4.9 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) 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 (c) 2014-2015 Research Organization for Information Science
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* and Technology (RIST). All rights 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/communicator/comm_helpers.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 OMPI_BUILD_MPI_PROFILING
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#if OPAL_HAVE_WEAK_SYMBOLS
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#pragma weak MPI_Ineighbor_alltoallv = PMPI_Ineighbor_alltoallv
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#endif
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#define MPI_Ineighbor_alltoallv PMPI_Ineighbor_alltoallv
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#endif
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static const char FUNC_NAME[] = "MPI_Ineighbor_alltoallv";
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int MPI_Ineighbor_alltoallv(const void *sendbuf, const int sendcounts[], const int sdispls[],
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MPI_Datatype sendtype, void *recvbuf, const int recvcounts[],
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const int rdispls[], MPI_Datatype recvtype, MPI_Comm comm,
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MPI_Request *request)
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{
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int i, err;
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int indegree, outdegree, weighted;
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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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memchecker_comm(comm);
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if (MPI_IN_PLACE != sendbuf) {
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memchecker_datatype(sendtype);
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ompi_datatype_type_extent(recvtype, &recv_ext);
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}
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memchecker_datatype(recvtype);
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ompi_datatype_type_extent(sendtype, &send_ext);
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err = ompi_comm_neighbors_count(comm, &indegree, &outdegree, &weighted);
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if (MPI_SUCCESS == err) {
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if (MPI_IN_PLACE != sendbuf) {
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for ( i = 0; i < outdegree; 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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}
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}
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for ( i = 0; i < indegree; i++ ) {
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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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);
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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) || OMPI_COMM_IS_INTER(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_IS_TOPO(comm)) {
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return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_TOPOLOGY,
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FUNC_NAME);
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} else if ((NULL == sendcounts) || (NULL == sdispls) ||
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(NULL == recvcounts) || (NULL == rdispls) ||
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MPI_IN_PLACE == sendbuf || 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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err = ompi_comm_neighbors_count(comm, &indegree, &outdegree, &weighted);
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OMPI_ERRHANDLER_CHECK(err, comm, err, FUNC_NAME);
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for (i = 0; i < outdegree; ++i) {
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OMPI_CHECK_DATATYPE_FOR_SEND(err, sendtype, sendcounts[i]);
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OMPI_ERRHANDLER_CHECK(err, comm, err, FUNC_NAME);
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}
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for (i = 0; i < indegree; ++i) {
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OMPI_CHECK_DATATYPE_FOR_RECV(err, recvtype, recvcounts[i]);
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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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err = comm->c_coll.coll_ineighbor_alltoallv(sendbuf, sendcounts, sdispls,
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sendtype, recvbuf, recvcounts, rdispls,
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recvtype, comm, request, comm->c_coll.coll_ineighbor_alltoallv_module);
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OMPI_ERRHANDLER_RETURN(err, comm, err, FUNC_NAME);
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}
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