117 строки
4.0 KiB
C
117 строки
4.0 KiB
C
/*
|
|
* 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.
|
|
* $COPYRIGHT$
|
|
*
|
|
* 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"
|
|
|
|
#if OPAL_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
|
|
#pragma weak MPI_Alltoallv = PMPI_Alltoallv
|
|
#endif
|
|
|
|
#if OMPI_PROFILING_DEFINES
|
|
#include "ompi/mpi/c/profile/defines.h"
|
|
#endif
|
|
|
|
static const char FUNC_NAME[] = "MPI_Alltoallv";
|
|
|
|
|
|
int MPI_Alltoallv(void *sendbuf, int *sendcounts, int *sdispls,
|
|
MPI_Datatype sendtype,
|
|
void *recvbuf, int *recvcounts, int *rdispls,
|
|
MPI_Datatype recvtype, MPI_Comm comm)
|
|
{
|
|
int i, size, err;
|
|
|
|
MEMCHECKER(
|
|
ptrdiff_t recv_ext;
|
|
ptrdiff_t send_ext;
|
|
|
|
size = ompi_comm_remote_size(comm);
|
|
ompi_datatype_type_extent(recvtype, &recv_ext);
|
|
ompi_datatype_type_extent(sendtype, &send_ext);
|
|
|
|
memchecker_datatype(sendtype);
|
|
memchecker_datatype(recvtype);
|
|
memchecker_comm(comm);
|
|
|
|
for ( i = 0; i < size; i++ ) {
|
|
/* 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_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM,
|
|
FUNC_NAME);
|
|
}
|
|
|
|
if ((NULL == sendcounts) || (NULL == sdispls) ||
|
|
(NULL == recvcounts) || (NULL == rdispls) ||
|
|
MPI_IN_PLACE == sendbuf || MPI_IN_PLACE == recvbuf) {
|
|
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
|
|
}
|
|
|
|
/* We always define the remote group to be the same as the local
|
|
group in the case of an intracommunicator, so it's safe to
|
|
get the size of the remote group here for both intra- and
|
|
intercommunicators */
|
|
|
|
size = ompi_comm_remote_size(comm);
|
|
for (i = 0; i < size; ++i) {
|
|
if (recvcounts[i] < 0) {
|
|
err = MPI_ERR_COUNT;
|
|
} else if (MPI_DATATYPE_NULL == recvtype || NULL == recvtype) {
|
|
err = MPI_ERR_TYPE;
|
|
} else {
|
|
OMPI_CHECK_DATATYPE_FOR_SEND(err, sendtype, sendcounts[i]);
|
|
}
|
|
OMPI_ERRHANDLER_CHECK(err, comm, err, FUNC_NAME);
|
|
}
|
|
}
|
|
|
|
OPAL_CR_ENTER_LIBRARY();
|
|
|
|
/* 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);
|
|
}
|
|
|