5fae72b9aa
This patch reshape the way we deal with topologies completely. Where our topologies were mainly storage components (they were not capable of creating the new communicator), the new version is built around a [possibly] common representation (in mca/topo/topo.h), but the functions to attach and retrieve the topological information are specific to each component. As a result the ompi_create_cart and ompi_create_graph functions become useless and have been removed. In addition to adding the internal infrastructure to manage the topology information, it updates the MPI interface, and the debuggers support and provides all Fortran interfaces. This commit was SVN r28687.
65 строки
2.0 KiB
C
65 строки
2.0 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2012 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include "ompi/mca/topo/base/base.h"
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#include "ompi/communicator/communicator.h"
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/*
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* function - retrieves graph topology information associated with a
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* communicator
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*
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* @param comm communicator with graph structure (handle)
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* @param maxindex length of vector 'index' in the calling program (integer)
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* @param maxedges length of vector 'edges' in the calling program (integer)
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* @param nodes array of integers containing the graph structure (for details see
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* @param edges array of integers containing the graph structure
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*
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* @retval MPI_SUCCESS
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*/
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int mca_topo_base_graph_get(ompi_communicator_t* comm,
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int maxindex,
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int maxedges,
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int *index,
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int *edges)
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{
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int i, *p;
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int nprocs = ompi_comm_size(comm);
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/*
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* Fill the nodes and edges arrays.
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*/
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p = comm->c_topo->mtc.graph->index;
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for (i = 0; (i < nprocs) && (i < maxindex); ++i, ++p) {
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*index++ = *p;
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}
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p = comm->c_topo->mtc.graph->edges;
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for (i = 0;
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(i < comm->c_topo->mtc.graph->index[nprocs-1]) && (i < maxedges);
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++i, ++p) {
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*edges++ = *p;
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}
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return MPI_SUCCESS;
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}
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