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openmpi/ompi/mca/coll/base/coll_base_comm_select.c
Nathan Hjelm b68d66bb9b MCA: Add the project/project version to the MCA base component
This commit adds support for project_framework_component_* parameter
matching. This is the first step in allowing the same framework name
in multiple projects. This change also bumps the MCA component version
to 2.1.0.

All master frameworks have been updated to use the new component
versioning macro. An mca.h has been added to each project to add a
project specific versioning macro of the form
PROJECT_MCA_VERSION_2_1_0.

Signed-off-by: Nathan Hjelm <hjelmn@me.com>
2015-03-27 10:59:04 -06:00

382 строки
14 KiB
C

/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* 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) 2007 Lawrence Livermore National Security, LLC. All
* rights reserved.
* Copyright (c) 2008 Sun Microsystems, Inc. All rights reserved.
* Copyright (c) 2008-2014 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2012 Oak Ridge National Laboratory. All rights reserved.
* Copyright (c) 2013 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2014 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "mpi.h"
#include "ompi/communicator/communicator.h"
#include "opal/util/output.h"
#include "opal/util/show_help.h"
#include "opal/class/opal_list.h"
#include "opal/class/opal_object.h"
#include "ompi/mca/mca.h"
#include "opal/mca/base/base.h"
#include "ompi/mca/coll/coll.h"
#include "ompi/mca/coll/base/base.h"
/*
* Local types
*/
struct avail_coll_t {
opal_list_item_t super;
int ac_priority;
mca_coll_base_module_2_1_0_t *ac_module;
};
typedef struct avail_coll_t avail_coll_t;
/*
* Local functions
*/
static opal_list_t *check_components(opal_list_t * components,
ompi_communicator_t * comm);
static int check_one_component(ompi_communicator_t * comm,
const mca_base_component_t * component,
mca_coll_base_module_2_1_0_t ** module);
static int query(const mca_base_component_t * component,
ompi_communicator_t * comm, int *priority,
mca_coll_base_module_2_1_0_t ** module);
static int query_2_0_0(const mca_coll_base_component_2_0_0_t *
coll_component, ompi_communicator_t * comm,
int *priority,
mca_coll_base_module_2_1_0_t ** module);
/*
* Stuff for the OBJ interface
*/
static OBJ_CLASS_INSTANCE(avail_coll_t, opal_list_item_t, NULL, NULL);
#define COPY(module, comm, func) \
do { \
if (NULL != module->coll_ ## func) { \
if (NULL != comm->c_coll.coll_ ## func ## _module) { \
OBJ_RELEASE(comm->c_coll.coll_ ## func ## _module); \
} \
comm->c_coll.coll_ ## func = module->coll_ ## func; \
comm->c_coll.coll_ ## func ## _module = module; \
OBJ_RETAIN(module); \
} \
} while (0)
/*
* This function is called at the initialization time of every
* communicator. It is used to select which coll component will be
* active for a given communicator.
*
* This selection logic is not for the weak.
*/
int mca_coll_base_comm_select(ompi_communicator_t * comm)
{
opal_list_t *selectable;
opal_list_item_t *item;
int ret;
/* Announce */
opal_output_verbose(10, ompi_coll_base_framework.framework_output,
"coll:base:comm_select: new communicator: %s (cid %d)",
comm->c_name, comm->c_contextid);
/* Initialize all the relevant pointers, since they're used as
* sentinel values */
memset(&comm->c_coll, 0, sizeof(mca_coll_base_comm_coll_t));
opal_output_verbose(10, ompi_coll_base_framework.framework_output,
"coll:base:comm_select: Checking all available modules");
selectable = check_components(&ompi_coll_base_framework.framework_components, comm);
/* Upon return from the above, the modules list will contain the
list of modules that returned (priority >= 0). If we have no
collective modules available, then print error and return. */
if (NULL == selectable) {
/* There's no modules available */
opal_show_help("help-mca-coll-base.txt",
"comm-select:none-available", true);
return OMPI_ERROR;
}
/* FIX ME - Do some kind of collective operation to find a module
that everyone has available */
/* do the selection loop */
for (item = opal_list_remove_first(selectable);
NULL != item; item = opal_list_remove_first(selectable)) {
avail_coll_t *avail = (avail_coll_t *) item;
/* initialize the module */
ret = avail->ac_module->coll_module_enable(avail->ac_module, comm);
if (OMPI_SUCCESS == ret) {
/* copy over any of the pointers */
COPY(avail->ac_module, comm, allgather);
COPY(avail->ac_module, comm, allgatherv);
COPY(avail->ac_module, comm, allreduce);
COPY(avail->ac_module, comm, alltoall);
COPY(avail->ac_module, comm, alltoallv);
COPY(avail->ac_module, comm, alltoallw);
COPY(avail->ac_module, comm, barrier);
COPY(avail->ac_module, comm, bcast);
COPY(avail->ac_module, comm, exscan);
COPY(avail->ac_module, comm, gather);
COPY(avail->ac_module, comm, gatherv);
COPY(avail->ac_module, comm, reduce);
COPY(avail->ac_module, comm, reduce_scatter_block);
COPY(avail->ac_module, comm, reduce_scatter);
COPY(avail->ac_module, comm, scan);
COPY(avail->ac_module, comm, scatter);
COPY(avail->ac_module, comm, scatterv);
COPY(avail->ac_module, comm, iallgather);
COPY(avail->ac_module, comm, iallgatherv);
COPY(avail->ac_module, comm, iallreduce);
COPY(avail->ac_module, comm, ialltoall);
COPY(avail->ac_module, comm, ialltoallv);
COPY(avail->ac_module, comm, ialltoallw);
COPY(avail->ac_module, comm, ibarrier);
COPY(avail->ac_module, comm, ibcast);
COPY(avail->ac_module, comm, iexscan);
COPY(avail->ac_module, comm, igather);
COPY(avail->ac_module, comm, igatherv);
COPY(avail->ac_module, comm, ireduce);
COPY(avail->ac_module, comm, ireduce_scatter_block);
COPY(avail->ac_module, comm, ireduce_scatter);
COPY(avail->ac_module, comm, iscan);
COPY(avail->ac_module, comm, iscatter);
COPY(avail->ac_module, comm, iscatterv);
/* We can not reliably check if this comm has a topology
* at this time. The flags are set *after* coll_select */
COPY(avail->ac_module, comm, neighbor_allgather);
COPY(avail->ac_module, comm, neighbor_allgatherv);
COPY(avail->ac_module, comm, neighbor_alltoall);
COPY(avail->ac_module, comm, neighbor_alltoallv);
COPY(avail->ac_module, comm, neighbor_alltoallw);
COPY(avail->ac_module, comm, ineighbor_allgather);
COPY(avail->ac_module, comm, ineighbor_allgatherv);
COPY(avail->ac_module, comm, ineighbor_alltoall);
COPY(avail->ac_module, comm, ineighbor_alltoallv);
COPY(avail->ac_module, comm, ineighbor_alltoallw);
}
/* release the original module reference and the list item */
OBJ_RELEASE(avail->ac_module);
OBJ_RELEASE(avail);
}
/* Done with the list from the check_components() call so release it. */
OBJ_RELEASE(selectable);
/* check to make sure no NULLs */
if ((NULL == comm->c_coll.coll_allgather) ||
(NULL == comm->c_coll.coll_allgatherv) ||
(NULL == comm->c_coll.coll_allreduce) ||
(NULL == comm->c_coll.coll_alltoall) ||
(NULL == comm->c_coll.coll_alltoallv) ||
(NULL == comm->c_coll.coll_alltoallw) ||
(NULL == comm->c_coll.coll_barrier) ||
(NULL == comm->c_coll.coll_bcast) ||
((OMPI_COMM_IS_INTRA(comm)) && (NULL == comm->c_coll.coll_exscan)) ||
(NULL == comm->c_coll.coll_gather) ||
(NULL == comm->c_coll.coll_gatherv) ||
(NULL == comm->c_coll.coll_reduce) ||
(NULL == comm->c_coll.coll_reduce_scatter_block) ||
(NULL == comm->c_coll.coll_reduce_scatter) ||
((OMPI_COMM_IS_INTRA(comm)) && (NULL == comm->c_coll.coll_scan)) ||
(NULL == comm->c_coll.coll_scatter) ||
(NULL == comm->c_coll.coll_scatterv) ||
(NULL == comm->c_coll.coll_iallgather) ||
(NULL == comm->c_coll.coll_iallgatherv) ||
(NULL == comm->c_coll.coll_iallreduce) ||
(NULL == comm->c_coll.coll_ialltoall) ||
(NULL == comm->c_coll.coll_ialltoallv) ||
(NULL == comm->c_coll.coll_ialltoallw) ||
(NULL == comm->c_coll.coll_ibarrier) ||
(NULL == comm->c_coll.coll_ibcast) ||
((OMPI_COMM_IS_INTRA(comm)) && (NULL == comm->c_coll.coll_iexscan)) ||
(NULL == comm->c_coll.coll_igather) ||
(NULL == comm->c_coll.coll_igatherv) ||
(NULL == comm->c_coll.coll_ireduce) ||
(NULL == comm->c_coll.coll_ireduce_scatter_block) ||
(NULL == comm->c_coll.coll_ireduce_scatter) ||
((OMPI_COMM_IS_INTRA(comm)) && (NULL == comm->c_coll.coll_iscan)) ||
(NULL == comm->c_coll.coll_iscatter) ||
(NULL == comm->c_coll.coll_iscatterv)) {
/* TODO -- Once the topology flags are set before coll_select then
* check if neighborhood collectives have been set. */
mca_coll_base_comm_unselect(comm);
return OMPI_ERR_NOT_FOUND;
}
return OMPI_SUCCESS;
}
static int avail_coll_compare (opal_list_item_t **a,
opal_list_item_t **b) {
avail_coll_t *acoll = (avail_coll_t *) *a;
avail_coll_t *bcoll = (avail_coll_t *) *b;
if (acoll->ac_priority > bcoll->ac_priority) {
return 1;
} else if (acoll->ac_priority < bcoll->ac_priority) {
return -1;
}
return 0;
}
/*
* For each module in the list, check and see if it wants to run, and
* do the resulting priority comparison. Make a list of modules to be
* only those who returned that they want to run, and put them in
* priority order.
*/
static opal_list_t *check_components(opal_list_t * components,
ompi_communicator_t * comm)
{
int priority;
const mca_base_component_t *component;
mca_base_component_list_item_t *cli;
mca_coll_base_module_2_1_0_t *module;
opal_list_t *selectable;
avail_coll_t *avail;
/* Make a list of the components that query successfully */
selectable = OBJ_NEW(opal_list_t);
/* Scan through the list of components */
OPAL_LIST_FOREACH(cli, &ompi_coll_base_framework.framework_components, mca_base_component_list_item_t) {
component = cli->cli_component;
priority = check_one_component(comm, component, &module);
if (priority >= 0) {
/* We have a component that indicated that it wants to run
by giving us a module */
avail = OBJ_NEW(avail_coll_t);
avail->ac_priority = priority;
avail->ac_module = module;
opal_list_append(selectable, &avail->super);
}
}
/* If we didn't find any available components, return an error */
if (0 == opal_list_get_size(selectable)) {
OBJ_RELEASE(selectable);
return NULL;
}
/* Put this list in priority order */
opal_list_sort(selectable, avail_coll_compare);
/* All done */
return selectable;
}
/*
* Check a single component
*/
static int check_one_component(ompi_communicator_t * comm,
const mca_base_component_t * component,
mca_coll_base_module_2_1_0_t ** module)
{
int err;
int priority = -1;
err = query(component, comm, &priority, module);
if (OMPI_SUCCESS == err) {
priority = (priority < 100) ? priority : 100;
opal_output_verbose(10, ompi_coll_base_framework.framework_output,
"coll:base:comm_select: component available: %s, priority: %d",
component->mca_component_name, priority);
} else {
priority = -1;
opal_output_verbose(10, ompi_coll_base_framework.framework_output,
"coll:base:comm_select: component not available: %s",
component->mca_component_name);
}
return priority;
}
/**************************************************************************
* Query functions
**************************************************************************/
/*
* Take any version of a coll module, query it, and return the right
* module struct
*/
static int query(const mca_base_component_t * component,
ompi_communicator_t * comm,
int *priority, mca_coll_base_module_2_1_0_t ** module)
{
*module = NULL;
if (2 == component->mca_type_major_version &&
0 == component->mca_type_minor_version &&
0 == component->mca_type_release_version) {
const mca_coll_base_component_2_0_0_t *coll100 =
(mca_coll_base_component_2_0_0_t *) component;
return query_2_0_0(coll100, comm, priority, module);
}
/* Unknown coll API version -- return error */
return OMPI_ERROR;
}
static int query_2_0_0(const mca_coll_base_component_2_0_0_t * component,
ompi_communicator_t * comm, int *priority,
mca_coll_base_module_2_1_0_t ** module)
{
mca_coll_base_module_2_1_0_t *ret;
/* There's currently no need for conversion */
ret = component->collm_comm_query(comm, priority);
if (NULL != ret) {
*module = ret;
return OMPI_SUCCESS;
}
return OMPI_ERROR;
}