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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) 2004-2006 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.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*
* These symbols are in a file by themselves to provide nice linker
* semantics. Since linkers generally pull in symbols by object fules,
* keeping these symbols as the only symbols in this file prevents
* utility programs such as "ompi_info" from having to import entire
* modules just to query their version and parameters
*/
#include "ompi_config.h"
#include <stdio.h>
#include "mpi.h"
#include "ompi/communicator/communicator.h"
#include "ompi/mca/topo/topo.h"
#include "ompi/mca/topo/base/base.h"
#include "ompi/mca/topo/unity/topo_unity.h"
/*
* *******************************************************************
* ************************ actions structure ************************
* *******************************************************************
*/
static mca_topo_base_module_1_0_0_t unity = {
mca_topo_unity_module_init, /* initalise after being selected */
mca_topo_unity_module_finalize, /* close a module on a communicator */
NULL, /* topo_cart_coords */
NULL, /* topo_cart_create */
NULL, /* topo_cart_get */
NULL, /* topo_cartdim_get */
mca_topo_unity_cart_map,
NULL, /* topo_cart_rank */
NULL, /* topo_cart_shift */
NULL, /* topo_cart_sub */
NULL, /* topo_graph_create */
NULL, /* topo_graph_get */
mca_topo_unity_graph_map,
NULL, /* topo_graphdims_get */
NULL, /* topo_graph_neighbors */
NULL /* topo_graph_neighbors_count */
};
/*
* *******************************************************************
* ************************* structure ends **************************
* *******************************************************************
*/
int mca_topo_unity_component_init_query(bool enable_progress_threads,
bool enable_mpi_threads)
{
/* Nothing to do */
return OMPI_SUCCESS;
}
struct mca_topo_base_module_1_0_0_t *
mca_topo_unity_component_comm_query (int *priority)
{
/* this is the lowest module on the totem pole */
*priority = 0;
/* the check as to whether this is an inter communicator
* or and intra communicator has to be done before reaching
* here. this is my solemn opinion. Therefore I am ignoring
* the checks here */
return &unity;
}
int mca_topo_unity_component_comm_unquery (struct ompi_communicator_t *comm)
{
/* This function might be needed for some purposes later. for now it
* does not have anything to do since there are no steps which need
* to be undone if this module is not selected */
return OMPI_SUCCESS;
}
int mca_topo_unity_module_init (struct ompi_communicator_t *comm)
{
/* This function is used to initialize the module on the communicator. We
* need to hang the data off of the communicator. For this we still use the
* same data structure which was defined in topo.h, mca_topo_comm_1_0_0_t.
* There are no additional things which we need. If some other module needs
* to hang additional data, then it has to have this structure as the first
* member and then extend. This is a must rule */
struct mca_topo_base_comm_1_0_0_t *topo_data;
/* allocate the data */
comm->c_topo_comm = NULL;
topo_data = (mca_topo_base_comm_1_0_0_t*)malloc(sizeof(struct mca_topo_base_comm_1_0_0_t));
if (NULL == topo_data) {
return OMPI_ERROR;
}
comm->c_topo_comm = topo_data;
return OMPI_SUCCESS;
}
int mca_topo_unity_module_finalize (struct ompi_communicator_t *comm)
{
/* All we need to do for now is to remove the allocated data */
if (NULL != comm->c_topo_comm) {
free (comm->c_topo_comm);
comm->c_topo = NULL;
}
return OMPI_SUCCESS;
}
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