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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) 2012-2017 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2014-2019 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* Copyright (c) 2017 IBM Corporation. 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/mca/topo/topo.h"
#include "ompi/mca/topo/base/base.h"
#include "ompi/runtime/ompi_spc.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;
SPC_RECORD(OMPI_SPC_NEIGHBOR_ALLTOALLV, 1);
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 = mca_topo_base_neighbor_count (comm, &indegree, &outdegree);
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_INTER(comm)) {
return OMPI_ERRHANDLER_NOHANDLE_INVOKE(MPI_ERR_COMM,
FUNC_NAME);
} else if (! OMPI_COMM_IS_TOPO(comm)) {
return OMPI_ERRHANDLER_NOHANDLE_INVOKE(MPI_ERR_COMM,
FUNC_NAME);
}
err = mca_topo_base_neighbor_count (comm, &indegree, &outdegree);
OMPI_ERRHANDLER_CHECK(err, comm, err, FUNC_NAME);
if (((0 < outdegree) && ((NULL == sendcounts) || (NULL == sdispls))) ||
((0 < indegree) && ((NULL == recvcounts) || (NULL == rdispls))) ||
MPI_IN_PLACE == sendbuf || MPI_IN_PLACE == recvbuf) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, 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);
}
if( OMPI_COMM_IS_CART(comm) ) {
const mca_topo_base_comm_cart_2_2_0_t *cart = comm->c_topo->mtc.cart;
if( 0 > cart->ndims ) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
}
}
else if( OMPI_COMM_IS_GRAPH(comm) ) {
int degree;
mca_topo_base_graph_neighbors_count(comm, ompi_comm_rank(comm), °ree);
if( 0 > degree ) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
}
}
else if( OMPI_COMM_IS_DIST_GRAPH(comm) ) {
const mca_topo_base_comm_dist_graph_2_2_0_t *dist_graph = comm->c_topo->mtc.dist_graph;
indegree = dist_graph->indegree;
outdegree = dist_graph->outdegree;
if( indegree < 0 || outdegree < 0 ) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, 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_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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