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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) 2004-2020 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) 2010-2012 Oak Ridge National Labs. All rights reserved.
* Copyright (c) 2012-2013 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2014-2018 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/runtime/ompi_spc.h"
#if OMPI_BUILD_MPI_PROFILING
#if OPAL_HAVE_WEAK_SYMBOLS
#pragma weak MPI_Alltoallv = PMPI_Alltoallv
#endif
#define MPI_Alltoallv PMPI_Alltoallv
#endif
static const char FUNC_NAME[] = "MPI_Alltoallv";
int MPI_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, size, err;
SPC_RECORD(OMPI_SPC_ALLTOALLV, 1);
MEMCHECKER(
ptrdiff_t recv_ext;
ptrdiff_t send_ext;
if (MPI_IN_PLACE != sendbuf) {
memchecker_datatype(sendtype);
ompi_datatype_type_extent(sendtype, &send_ext);
}
memchecker_datatype(recvtype);
ompi_datatype_type_extent(recvtype, &recv_ext);
memchecker_comm(comm);
size = OMPI_COMM_IS_INTER(comm)?ompi_comm_remote_size(comm):ompi_comm_size(comm);
for ( i = 0; i < size; i++ ) {
if (MPI_IN_PLACE != sendbuf) {
/* check if send chunks are defined. */
memchecker_call(&opal_memchecker_base_isdefined,
(char *)(sendbuf)+sdispls[i]*send_ext,
sendcounts[i], sendtype);
}
/* 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)) {
return OMPI_ERRHANDLER_NOHANDLE_INVOKE(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 == sendbuf && OMPI_COMM_IS_INTER(comm)) ||
MPI_IN_PLACE == recvbuf) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
}
size = OMPI_COMM_IS_INTER(comm)?ompi_comm_remote_size(comm):ompi_comm_size(comm);
for (i = 0; i < size; ++i) {
OMPI_CHECK_DATATYPE_FOR_SEND(err, sendtype, sendcounts[i]);
OMPI_ERRHANDLER_CHECK(err, comm, err, FUNC_NAME);
OMPI_CHECK_DATATYPE_FOR_RECV(err, recvtype, recvcounts[i]);
OMPI_ERRHANDLER_CHECK(err, comm, err, FUNC_NAME);
}
if (MPI_IN_PLACE != sendbuf && !OMPI_COMM_IS_INTER(comm)) {
size_t sendtype_size, recvtype_size;
int me = ompi_comm_rank(comm);
ompi_datatype_type_size(sendtype, &sendtype_size);
ompi_datatype_type_size(recvtype, &recvtype_size);
if ((sendtype_size*sendcounts[me]) != (recvtype_size*recvcounts[me])) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_TRUNCATE, FUNC_NAME);
}
}
}
#if OPAL_ENABLE_FT_MPI
/*
* An early check, so as to return early if we are using a broken
* communicator. This is not absolutely necessary since we will
* check for this, and other, error conditions during the operation.
*/
if( OPAL_UNLIKELY(!ompi_comm_iface_coll_check(comm, &err)) ) {
OMPI_ERRHANDLER_RETURN(err, comm, err, FUNC_NAME);
}
#endif
/* Invoke the coll component to perform the back-end operation */
err = comm->c_coll->coll_alltoallv(sendbuf, sendcounts, sdispls, sendtype,
recvbuf, recvcounts, rdispls, recvtype,
comm, comm->c_coll->coll_alltoallv_module);
OMPI_ERRHANDLER_RETURN(err, comm, err, FUNC_NAME);
}
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