58 строки
2.1 KiB
C
58 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 (c) 2012-2013 Inria. 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 <string.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 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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