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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2012 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2008 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2012-2013 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2014-2015 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <stdio.h>
#include "ompi/mpi/c/bindings.h"
#include "ompi/runtime/params.h"
#include "ompi/communicator/communicator.h"
#include "ompi/errhandler/errhandler.h"
#include "ompi/datatype/ompi_datatype.h"
#include "ompi/memchecker.h"
#include "ompi/communicator/comm_helpers.h"
#if OMPI_BUILD_MPI_PROFILING
#if OPAL_HAVE_WEAK_SYMBOLS
#pragma weak MPI_Neighbor_alltoallv = PMPI_Neighbor_alltoallv
#endif
#define MPI_Neighbor_alltoallv PMPI_Neighbor_alltoallv
#endif
static const char FUNC_NAME[] = "MPI_Neighbor_alltoallv";
int MPI_Neighbor_alltoallv(const void *sendbuf, const int sendcounts[], const int sdispls[],
MPI_Datatype sendtype, void *recvbuf,
const int recvcounts[], const int rdispls[],
MPI_Datatype recvtype, MPI_Comm comm)
{
int i, err;
int indegree, outdegree, weighted;
MEMCHECKER(
ptrdiff_t recv_ext;
ptrdiff_t send_ext;
memchecker_comm(comm);
if (MPI_IN_PLACE != sendbuf) {
memchecker_datatype(sendtype);
ompi_datatype_type_extent(recvtype, &recv_ext);
}
memchecker_datatype(recvtype);
ompi_datatype_type_extent(sendtype, &send_ext);
err = ompi_comm_neighbors_count(comm, &indegree, &outdegree, &weighted);
if (MPI_SUCCESS == err) {
if (MPI_IN_PLACE != sendbuf) {
for ( i = 0; i < outdegree; i++ ) {
/* check if send chunks are defined. */
memchecker_call(&opal_memchecker_base_isdefined,
(char *)(sendbuf)+sdispls[i]*send_ext,
sendcounts[i], sendtype);
}
}
for ( i = 0; i < indegree; i++ ) {
/* check if receive chunks are addressable. */
memchecker_call(&opal_memchecker_base_isaddressable,
(char *)(recvbuf)+rdispls[i]*recv_ext,
recvcounts[i], recvtype);
}
}
);
if (MPI_PARAM_CHECK) {
/* Unrooted operation -- same checks for all ranks */
err = MPI_SUCCESS;
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
if (ompi_comm_invalid(comm) || !(OMPI_COMM_IS_CART(comm) || OMPI_COMM_IS_GRAPH(comm) ||
OMPI_COMM_IS_DIST_GRAPH(comm))) {
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM,
FUNC_NAME);
}
if (MPI_IN_PLACE == sendbuf) {
sendcounts = recvcounts;
sdispls = rdispls;
sendtype = recvtype;
}
if ((NULL == sendcounts) || (NULL == sdispls) ||
(NULL == recvcounts) || (NULL == rdispls) ||
MPI_IN_PLACE == recvbuf) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
}
err = ompi_comm_neighbors_count(comm, &indegree, &outdegree, &weighted);
OMPI_ERRHANDLER_CHECK(err, comm, err, FUNC_NAME);
for (i = 0; i < outdegree; ++i) {
OMPI_CHECK_DATATYPE_FOR_SEND(err, sendtype, sendcounts[i]);
OMPI_ERRHANDLER_CHECK(err, comm, err, FUNC_NAME);
}
for (i = 0; i < indegree; ++i) {
OMPI_CHECK_DATATYPE_FOR_RECV(err, recvtype, recvcounts[i]);
OMPI_ERRHANDLER_CHECK(err, comm, err, FUNC_NAME);
}
}
/* Invoke the coll component to perform the back-end operation */
err = comm->c_coll.coll_neighbor_alltoallv(sendbuf, sendcounts, sdispls, sendtype,
recvbuf, recvcounts, rdispls, recvtype,
comm, comm->c_coll.coll_neighbor_alltoallv_module);
OMPI_ERRHANDLER_RETURN(err, comm, err, FUNC_NAME);
}
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