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/*
* Copyright (c) 2014-2020 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2021 Triad National Security, LLC. All rights
* reserved.
* Copyright (c) 2022 IBM Corporation. All rights reserved
*
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <stdio.h>
#ifdef HAVE_STRING_H
#include <string.h>
#endif /* HAVE_STRING_H */
#ifdef HAVE_SCHED_H
#include <sched.h>
#endif /* HAVE_SCHED_H */
#include <sys/types.h>
#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
#endif /* HAVE_SYS_MMAN_H */
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif /* HAVE_UNISTD_H */
#include "mpi.h"
#include "opal_stdint.h"
#include "opal/util/os_path.h"
#include "ompi/communicator/communicator.h"
#include "ompi/group/group.h"
#include "ompi/mca/coll/coll.h"
#include "ompi/mca/coll/base/base.h"
#include "ompi/mca/coll/base/coll_base_functions.h"
#include "ompi/proc/proc.h"
#include "coll_adapt.h"
#include "ompi/mca/coll/base/coll_tags.h"
#include "ompi/mca/pml/pml.h"
#include "coll_adapt_algorithms.h"
#include "coll_adapt_topocache.h"
/*
* Local functions
*/
/*
* Module constructor
*/
static void adapt_module_construct(mca_coll_adapt_module_t * module)
{
module->topo_cache = NULL;
module->adapt_enabled = false;
}
/*
* Module destructor
*/
static void adapt_module_destruct(mca_coll_adapt_module_t * module)
{
if (NULL != module->topo_cache) {
ompi_coll_adapt_topology_cache_item_t *item;
while (NULL != (item = (ompi_coll_adapt_topology_cache_item_t*)opal_list_remove_first(module->topo_cache))) {
OBJ_RELEASE(item);
}
OBJ_RELEASE(module->topo_cache);
module->topo_cache = NULL;
}
module->adapt_enabled = false;
}
OBJ_CLASS_INSTANCE(mca_coll_adapt_module_t,
mca_coll_base_module_t,
adapt_module_construct,
adapt_module_destruct);
/*
* In this macro, the following variables are supposed to have been declared
* in the caller:
* . ompi_communicator_t *comm
* . mca_coll_adapt_module_t *adapt_module
*/
#define ADAPT_SAVE_PREV_COLL_API(__api) \
do { \
adapt_module->previous_ ## __api = comm->c_coll->coll_ ## __api; \
adapt_module->previous_ ## __api ## _module = comm->c_coll->coll_ ## __api ## _module; \
if (!comm->c_coll->coll_ ## __api || !comm->c_coll->coll_ ## __api ## _module) { \
opal_output_verbose(1, ompi_coll_base_framework.framework_output, \
"(%s/%s): no underlying " # __api"; disqualifying myself", \
ompi_comm_print_cid(comm), comm->c_name); \
return OMPI_ERROR; \
} \
OBJ_RETAIN(adapt_module->previous_ ## __api ## _module); \
} while(0)
/*
* Init module on the communicator
*/
static int adapt_module_enable(mca_coll_base_module_t * module,
struct ompi_communicator_t *comm)
{
mca_coll_adapt_module_t * adapt_module = (mca_coll_adapt_module_t*) module;
ADAPT_SAVE_PREV_COLL_API(reduce);
ADAPT_SAVE_PREV_COLL_API(ireduce);
return OMPI_SUCCESS;
}
/*
* Initial query function that is invoked during MPI_INIT, allowing
* this component to disqualify itself if it doesn't support the
* required level of thread support. This function is invoked exactly
* once.
*/
int ompi_coll_adapt_init_query(bool enable_progress_threads, bool enable_mpi_threads)
{
return OMPI_SUCCESS;
}
/*
* Invoked when there's a new communicator that has been created.
* Look at the communicator and decide which set of functions and
* priority we want to return.
*/
mca_coll_base_module_t *ompi_coll_adapt_comm_query(struct ompi_communicator_t * comm,
int *priority)
{
mca_coll_adapt_module_t *adapt_module;
/* If we're intercomm, or if there's only one process in the communicator */
if (OMPI_COMM_IS_INTER(comm) || 1 == ompi_comm_size(comm)) {
opal_output_verbose(10, ompi_coll_base_framework.framework_output,
"coll:adapt:comm_query (%s/%s): intercomm, "
"comm is too small; disqualifying myself",
ompi_comm_print_cid(comm), comm->c_name);
return NULL;
}
/* Get the priority level attached to this module.
If priority is less than or equal to 0, then the module is unavailable. */
*priority = mca_coll_adapt_component.adapt_priority;
if (mca_coll_adapt_component.adapt_priority < 0) {
opal_output_verbose(10, ompi_coll_base_framework.framework_output,
"coll:adapt:comm_query (%s/%s): priority too low; "
"disqualifying myself",
ompi_comm_print_cid(comm), comm->c_name);
return NULL;
}
adapt_module = OBJ_NEW(mca_coll_adapt_module_t);
if (NULL == adapt_module) {
return NULL;
}
/* All is good -- return a module */
adapt_module->super.coll_module_enable = adapt_module_enable;
adapt_module->super.coll_allgather = NULL;
adapt_module->super.coll_allgatherv = NULL;
adapt_module->super.coll_allreduce = NULL;
adapt_module->super.coll_alltoall = NULL;
adapt_module->super.coll_alltoallw = NULL;
adapt_module->super.coll_barrier = NULL;
adapt_module->super.coll_bcast = ompi_coll_adapt_bcast;
adapt_module->super.coll_exscan = NULL;
adapt_module->super.coll_gather = NULL;
adapt_module->super.coll_gatherv = NULL;
adapt_module->super.coll_reduce = ompi_coll_adapt_reduce;
adapt_module->super.coll_reduce_scatter = NULL;
adapt_module->super.coll_scan = NULL;
adapt_module->super.coll_scatter = NULL;
adapt_module->super.coll_scatterv = NULL;
adapt_module->super.coll_ibcast = ompi_coll_adapt_ibcast;
adapt_module->super.coll_ireduce = ompi_coll_adapt_ireduce;
adapt_module->super.coll_iallreduce = NULL;
opal_output_verbose(10, ompi_coll_base_framework.framework_output,
"coll:adapt:comm_query (%s/%s): pick me! pick me!",
ompi_comm_print_cid(comm), comm->c_name);
return &(adapt_module->super);
}
/*
* Free ADAPT request
*/
int ompi_coll_adapt_request_free(ompi_request_t ** request)
{
OMPI_REQUEST_FINI(*request);
(*request)->req_state = OMPI_REQUEST_INVALID;
OBJ_RELEASE(*request);
*request = MPI_REQUEST_NULL;
return OMPI_SUCCESS;
}
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