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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2008 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2011-2020 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2009 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2013-2014 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2012-2013 Inria. All rights reserved.
* Copyright (c) 2015 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* Copyright (c) 2017 IBM Corporation. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* Author(s): Torsten Hoefler
*
*/
#include "ompi_config.h"
#include "ompi/mpi/c/bindings.h"
#include "ompi/runtime/params.h"
#include "ompi/communicator/communicator.h"
#include "ompi/errhandler/errhandler.h"
#include "ompi/memchecker.h"
#include "ompi/mca/topo/topo.h"
#include "ompi/mca/topo/base/base.h"
#if OMPI_BUILD_MPI_PROFILING
#if OPAL_HAVE_WEAK_SYMBOLS
#pragma weak MPI_Dist_graph_create_adjacent = PMPI_Dist_graph_create_adjacent
#endif
#define MPI_Dist_graph_create_adjacent PMPI_Dist_graph_create_adjacent
#endif
static const char FUNC_NAME[] = "MPI_Dist_graph_create_adjacent";
int MPI_Dist_graph_create_adjacent(MPI_Comm comm_old,
int indegree, const int sources[],
const int sourceweights[], int outdegree,
const int destinations[], const int destweights[],
MPI_Info info, int reorder,
MPI_Comm *comm_dist_graph)
{
mca_topo_base_module_t* topo;
int i, comm_size, err;
MEMCHECKER(
memchecker_comm(comm_old);
);
if (MPI_PARAM_CHECK) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
if (ompi_comm_invalid(comm_old)) {
return OMPI_ERRHANDLER_NOHANDLE_INVOKE(MPI_ERR_COMM,
FUNC_NAME);
} else if (OMPI_COMM_IS_INTER(comm_old)) {
return OMPI_ERRHANDLER_NOHANDLE_INVOKE(MPI_ERR_COMM,
FUNC_NAME);
} else if (indegree < 0 || outdegree < 0 || NULL == comm_dist_graph) {
return OMPI_ERRHANDLER_INVOKE(comm_old, MPI_ERR_ARG,
"MPI_Dist_graph_create_adjacent negative degree");
} else if ((indegree > 0 &&
(NULL == sources || NULL == sourceweights)) ||
(outdegree > 0 &&
(NULL == destinations || NULL == destweights))) {
return OMPI_ERRHANDLER_INVOKE(comm_old, MPI_ERR_ARG, "MPI_Dist_graph_create_adjacent mismatched sources or destinations");
}
comm_size = ompi_comm_size(comm_old);
for (i = 0; i < indegree; ++i) {
if (((sources[i] < 0) && (sources[i] != MPI_PROC_NULL)) || sources[i] >= comm_size) {
return OMPI_ERRHANDLER_INVOKE(comm_old, MPI_ERR_ARG,
"MPI_Dist_graph_create_adjacent invalid sources");
} else if (MPI_UNWEIGHTED != sourceweights && sourceweights[i] < 0) {
return OMPI_ERRHANDLER_INVOKE(comm_old, MPI_ERR_ARG,
"MPI_Dist_graph_create_adjacent invalid sourceweights");
}
}
for (i = 0; i < outdegree; ++i) {
if (((destinations[i] < 0) && (destinations[i] != MPI_PROC_NULL)) || destinations[i] >= comm_size) {
return OMPI_ERRHANDLER_INVOKE(comm_old, MPI_ERR_ARG,
"MPI_Dist_graph_create_adjacent invalid destinations");
} else if (MPI_UNWEIGHTED != destweights && destweights[i] < 0) {
return OMPI_ERRHANDLER_INVOKE(comm_old, MPI_ERR_ARG,
"MPI_Dist_graph_create_adjacent invalid destweights");
}
}
}
/* Ensure there is a topo attached to this communicator */
if(OMPI_SUCCESS != (err = mca_topo_base_comm_select(comm_old, NULL,
&topo, OMPI_COMM_DIST_GRAPH))) {
return OMPI_ERRHANDLER_INVOKE(comm_old, err, 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_create_check(comm_old, &err)) ) {
OMPI_ERRHANDLER_RETURN(err, comm_old, err, FUNC_NAME);
}
#endif
err = topo->topo.dist_graph.dist_graph_create_adjacent(topo, comm_old, indegree,
sources, sourceweights, outdegree,
destinations, destweights, &(info->super),
reorder, comm_dist_graph);
OMPI_ERRHANDLER_RETURN(err, comm_old, err, FUNC_NAME);
}
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