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/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 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) 2008 Cisco Systems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#include "ompi/mca/topo/base/base.h"
#include "ompi/communicator/communicator.h"
#include "ompi/mca/topo/topo.h"
/*
* function - retrieves Cartesian topology information associated with a
* communicator
*
* @param comm communicator with cartesian structure (handle)
* @param maxdims length of vectors 'dims', 'periods', and 'coords'
* in the calling program (integer)
* @param dims number of processes for each cartesian dimension (array of integer)
* @param periods periodicity (true/false) for each cartesian dimension
* (array of logical)
* @param coords coordinates of calling process in cartesian structure
* (array of integer)
*
* @retval MPI_SUCCESS
*/
int mca_topo_base_cart_get (MPI_Comm comm,
int maxdims,
int *dims,
int *periods,
int *coords)
{
int m = (maxdims <= comm->c_topo_comm->mtc_ndims_or_nnodes) ?
maxdims : comm->c_topo_comm->mtc_ndims_or_nnodes;
memcpy(dims, comm->c_topo_comm->mtc_dims_or_index, m * sizeof(int));
memcpy(periods, comm->c_topo_comm->mtc_periods_or_edges, m * sizeof(int));
memcpy(coords, comm->c_topo_comm->mtc_coords, m * sizeof(int));
return MPI_SUCCESS;
}
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