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.
59 строки
2.1 KiB
C
59 строки
2.1 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) 2004-2013 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 (c) 2008 Cisco Systems, Inc. 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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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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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 Cartesian topology information associated with a
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* communicator
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*
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* @param comm communicator with cartesian structure (handle)
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* @param maxdims length of vectors 'dims', 'periods', and 'coords'
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* in the calling program (integer)
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* @param dims number of processes for each cartesian dimension (array of integer)
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* @param periods periodicity (true/false) for each cartesian dimension
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* (array of logical)
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* @param coords coordinates of calling process in cartesian structure
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* (array of integer)
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*
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* @retval MPI_SUCCESS
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*/
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int mca_topo_base_cart_get(ompi_communicator_t* comm,
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int maxdims,
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int *dims,
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int *periods,
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int *coords)
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{
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int m = (maxdims <= comm->c_topo->mtc.cart->ndims) ?
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maxdims : comm->c_topo->mtc.cart->ndims;
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memcpy(dims, comm->c_topo->mtc.cart->dims, m * sizeof(int));
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memcpy(periods, comm->c_topo->mtc.cart->periods, m * sizeof(int));
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memcpy(coords, comm->c_topo->mtc.cart->coords, m * sizeof(int));
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return MPI_SUCCESS;
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}
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