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openmpi/ompi/mca/coll/ml/coll_ml_custom_utils.c
Pavel Shamis b89f8fabc9 Adding Hierarchical Collectives project to the Open MPI trunk.
The project includes following components and frameworks: 
- ML Collective component
- NETPATTERNS and COMMPATTERNS common components
- BCOL framework
- SBGP framework

Note: By default the ML collective component is disabled. In order to enable
new collectives user should bump up the priority of ml component (coll_ml_priority)

=============================================

Primary Contributors (in alphabetical order):

Ishai Rabinovich (Mellanox)
Joshua S. Ladd (ORNL / Mellanox)
Manjunath Gorentla Venkata (ORNL)
Mike Dubman (Mellanox)
Noam Bloch (Mellanox)
Pavel (Pasha) Shamis (ORNL / Mellanox)
Richard Graham (ORNL / Mellanox)
Vasily Filipov (Mellanox)

This commit was SVN r27078.
2012-08-16 19:11:35 +00:00

134 строки
3.9 KiB
C

/*
* Copyright (c) 2009-2012 Oak Ridge National Laboratory. All rights reserved.
* Copyright (c) 2009-2012 Mellanox Technologies. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/** @file */
#include "ompi_config.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "opal/util/output.h"
#include "opal/class/opal_list.h"
#include "opal/class/opal_object.h"
#include "opal/mca/mca.h"
#include "opal/mca/base/base.h"
#include "opal/threads/mutex.h"
#include "opal/sys/atomic.h"
#include "orte/util/show_help.h"
#include "ompi/op/op.h"
#include "ompi/constants.h"
#include "ompi/mca/coll/coll.h"
#include "ompi/mca/bcol/bcol.h"
#include "ompi/mca/coll/base/base.h"
#include "ompi/mca/coll/ml/coll_ml.h"
#include "ompi/mca/common/commpatterns/common_coll_ops.h"
#include "ompi/datatype/ompi_datatype.h"
#include "ompi/communicator/communicator.h"
#include "ompi/mca/bcol/base/base.h"
#include "coll_ml_custom_utils.h"
/*
* Local types
*/
struct avail_coll_t {
opal_list_item_t super;
int ac_priority;
mca_coll_base_module_2_0_0_t *ac_module;
};
typedef struct avail_coll_t avail_coll_t;
/*
* Stuff for the OBJ interface
* If topo_index == COLL_ML_TOPO_MAX it looks over all possilbe topologies, otherwhise it looks
* in the topology that was specified.
*/
int mca_coll_ml_check_if_bcol_is_used(const char *bcol_name, const mca_coll_ml_module_t *ml_module,
int topo_index)
{
int i, rc, hier, *ranks_in_comm,
is_used = 0,
comm_size = ompi_comm_size(ml_module->comm);
int n_hier, tp , max_tp;
const mca_coll_ml_topology_t *topo_info;
ranks_in_comm = (int *) malloc(comm_size * sizeof(int));
if (OPAL_UNLIKELY(NULL == ranks_in_comm)) {
ML_ERROR(("Memory allocation failed."));
ompi_mpi_abort(&ompi_mpi_comm_world.comm, MPI_ERR_NO_MEM, true);
}
for (i = 0; i < comm_size; ++i) {
ranks_in_comm[i] = i;
}
if (COLL_ML_TOPO_MAX == topo_index) {
tp = 0;
max_tp = COLL_ML_TOPO_MAX;
} else {
tp = topo_index;
max_tp = topo_index + 1;
}
for (; tp < max_tp; tp++) {
topo_info = &ml_module->topo_list[tp];
n_hier = topo_info->n_levels;
for (hier = 0; hier < n_hier; ++hier) {
hierarchy_pairs *pair = &topo_info->component_pairs[hier];
mca_bcol_base_component_t *b_cm = pair->bcol_component;
if(0 == strcmp(bcol_name,
b_cm->bcol_version.mca_component_name)) {
is_used = 1;
break;
}
}
}
rc = comm_allreduce_pml(&is_used, &is_used, 1, MPI_INT,
ompi_comm_rank(ml_module->comm), MPI_MAX,
comm_size, ranks_in_comm, ml_module->comm);
if (OPAL_UNLIKELY(OMPI_SUCCESS != rc)) {
ML_ERROR(("comm_allreduce_pml failed."));
ompi_mpi_abort(&ompi_mpi_comm_world.comm, MPI_ERR_OP, true);
}
free(ranks_in_comm);
return is_used;
}
/* The function is very different from the above function */
int mca_coll_ml_check_if_bcol_is_requested(const char *component_name)
{
mca_base_component_list_item_t *bcol_comp;
bcol_comp = (mca_base_component_list_item_t *) opal_list_get_first(&mca_bcol_base_components_in_use);
ML_VERBOSE(10, ("Loop over bcol components\n"));
for ( bcol_comp = (mca_base_component_list_item_t *) opal_list_get_first(&mca_bcol_base_components_in_use);
bcol_comp != (mca_base_component_list_item_t *) opal_list_get_end(&mca_bcol_base_components_in_use);
bcol_comp = (mca_base_component_list_item_t *) opal_list_get_next(bcol_comp)) {
if(0 == strcmp(component_name,
((mca_bcol_base_component_2_0_0_t *)
bcol_comp->cli_component)->bcol_version.mca_component_name)) {
return true;
}
}
/* the component was not resquested */
return false;
}