390 строки
15 KiB
C
390 строки
15 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2007 Lawrence Livermore National Security, LLC. All
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* rights reserved.
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* Copyright (c) 2008 Sun Microsystems, Inc. All rights reserved.
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* Copyright (c) 2008-2014 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2012 Oak Ridge National Laboratory. All rights reserved.
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* Copyright (c) 2013 Los Alamos National Security, LLC. All rights
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* reserved.
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* Copyright (c) 2014 Research Organization for Information Science
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* and Technology (RIST). All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "mpi.h"
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#include "ompi/communicator/communicator.h"
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#include "opal/util/output.h"
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#include "opal/util/show_help.h"
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#include "opal/class/opal_list.h"
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#include "opal/class/opal_object.h"
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#include "ompi/mca/mca.h"
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#include "opal/mca/base/base.h"
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#include "ompi/mca/coll/coll.h"
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#include "ompi/mca/coll/base/base.h"
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/*
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* Local types
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*/
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struct avail_coll_t {
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opal_list_item_t super;
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int ac_priority;
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mca_coll_base_module_2_1_0_t *ac_module;
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};
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typedef struct avail_coll_t avail_coll_t;
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/*
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* Local functions
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*/
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static opal_list_t *check_components(opal_list_t * components,
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ompi_communicator_t * comm);
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static int check_one_component(ompi_communicator_t * comm,
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const mca_base_component_t * component,
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mca_coll_base_module_2_1_0_t ** module);
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static int query(const mca_base_component_t * component,
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ompi_communicator_t * comm, int *priority,
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mca_coll_base_module_2_1_0_t ** module);
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static int query_2_0_0(const mca_coll_base_component_2_0_0_t *
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coll_component, ompi_communicator_t * comm,
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int *priority,
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mca_coll_base_module_2_1_0_t ** module);
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/*
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* Stuff for the OBJ interface
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*/
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static OBJ_CLASS_INSTANCE(avail_coll_t, opal_list_item_t, NULL, NULL);
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#define COPY(module, comm, func) \
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do { \
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if (NULL != module->coll_ ## func) { \
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if (NULL != comm->c_coll.coll_ ## func ## _module) { \
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OBJ_RELEASE(comm->c_coll.coll_ ## func ## _module); \
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} \
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comm->c_coll.coll_ ## func = module->coll_ ## func; \
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comm->c_coll.coll_ ## func ## _module = module; \
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OBJ_RETAIN(module); \
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} \
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} while (0)
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#define CHECK_NULL(what, comm, func) \
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( (what) = # func , NULL == (comm)->c_coll.coll_ ## func)
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/*
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* This function is called at the initialization time of every
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* communicator. It is used to select which coll component will be
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* active for a given communicator.
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*
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* This selection logic is not for the weak.
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*/
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int mca_coll_base_comm_select(ompi_communicator_t * comm)
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{
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opal_list_t *selectable;
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opal_list_item_t *item;
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char* which_func = "unknown";
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int ret;
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/* Announce */
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opal_output_verbose(10, ompi_coll_base_framework.framework_output,
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"coll:base:comm_select: new communicator: %s (cid %d)",
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comm->c_name, comm->c_contextid);
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/* Initialize all the relevant pointers, since they're used as
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* sentinel values */
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memset(&comm->c_coll, 0, sizeof(mca_coll_base_comm_coll_t));
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opal_output_verbose(10, ompi_coll_base_framework.framework_output,
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"coll:base:comm_select: Checking all available modules");
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selectable = check_components(&ompi_coll_base_framework.framework_components, comm);
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/* Upon return from the above, the modules list will contain the
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list of modules that returned (priority >= 0). If we have no
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collective modules available, then print error and return. */
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if (NULL == selectable) {
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/* There's no modules available */
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opal_show_help("help-mca-coll-base.txt",
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"comm-select:none-available", true);
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return OMPI_ERROR;
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}
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/* FIX ME - Do some kind of collective operation to find a module
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that everyone has available */
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/* do the selection loop */
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for (item = opal_list_remove_first(selectable);
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NULL != item; item = opal_list_remove_first(selectable)) {
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avail_coll_t *avail = (avail_coll_t *) item;
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/* initialize the module */
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ret = avail->ac_module->coll_module_enable(avail->ac_module, comm);
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if (OMPI_SUCCESS == ret) {
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/* copy over any of the pointers */
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COPY(avail->ac_module, comm, allgather);
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COPY(avail->ac_module, comm, allgatherv);
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COPY(avail->ac_module, comm, allreduce);
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COPY(avail->ac_module, comm, alltoall);
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COPY(avail->ac_module, comm, alltoallv);
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COPY(avail->ac_module, comm, alltoallw);
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COPY(avail->ac_module, comm, barrier);
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COPY(avail->ac_module, comm, bcast);
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COPY(avail->ac_module, comm, exscan);
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COPY(avail->ac_module, comm, gather);
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COPY(avail->ac_module, comm, gatherv);
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COPY(avail->ac_module, comm, reduce);
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COPY(avail->ac_module, comm, reduce_scatter_block);
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COPY(avail->ac_module, comm, reduce_scatter);
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COPY(avail->ac_module, comm, scan);
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COPY(avail->ac_module, comm, scatter);
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COPY(avail->ac_module, comm, scatterv);
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COPY(avail->ac_module, comm, iallgather);
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COPY(avail->ac_module, comm, iallgatherv);
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COPY(avail->ac_module, comm, iallreduce);
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COPY(avail->ac_module, comm, ialltoall);
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COPY(avail->ac_module, comm, ialltoallv);
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COPY(avail->ac_module, comm, ialltoallw);
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COPY(avail->ac_module, comm, ibarrier);
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COPY(avail->ac_module, comm, ibcast);
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COPY(avail->ac_module, comm, iexscan);
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COPY(avail->ac_module, comm, igather);
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COPY(avail->ac_module, comm, igatherv);
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COPY(avail->ac_module, comm, ireduce);
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COPY(avail->ac_module, comm, ireduce_scatter_block);
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COPY(avail->ac_module, comm, ireduce_scatter);
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COPY(avail->ac_module, comm, iscan);
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COPY(avail->ac_module, comm, iscatter);
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COPY(avail->ac_module, comm, iscatterv);
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/* We can not reliably check if this comm has a topology
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* at this time. The flags are set *after* coll_select */
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COPY(avail->ac_module, comm, neighbor_allgather);
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COPY(avail->ac_module, comm, neighbor_allgatherv);
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COPY(avail->ac_module, comm, neighbor_alltoall);
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COPY(avail->ac_module, comm, neighbor_alltoallv);
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COPY(avail->ac_module, comm, neighbor_alltoallw);
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COPY(avail->ac_module, comm, ineighbor_allgather);
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COPY(avail->ac_module, comm, ineighbor_allgatherv);
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COPY(avail->ac_module, comm, ineighbor_alltoall);
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COPY(avail->ac_module, comm, ineighbor_alltoallv);
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COPY(avail->ac_module, comm, ineighbor_alltoallw);
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}
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/* release the original module reference and the list item */
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OBJ_RELEASE(avail->ac_module);
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OBJ_RELEASE(avail);
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}
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/* Done with the list from the check_components() call so release it. */
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OBJ_RELEASE(selectable);
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/* check to make sure no NULLs */
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if (CHECK_NULL(which_func, comm, allgather) ||
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CHECK_NULL(which_func, comm, allgatherv) ||
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CHECK_NULL(which_func, comm, allreduce) ||
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CHECK_NULL(which_func, comm, alltoall) ||
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CHECK_NULL(which_func, comm, alltoallv) ||
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CHECK_NULL(which_func, comm, alltoallw) ||
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CHECK_NULL(which_func, comm, barrier) ||
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CHECK_NULL(which_func, comm, bcast) ||
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((OMPI_COMM_IS_INTRA(comm)) && CHECK_NULL(which_func, comm, exscan)) ||
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CHECK_NULL(which_func, comm, gather) ||
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CHECK_NULL(which_func, comm, gatherv) ||
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CHECK_NULL(which_func, comm, reduce) ||
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CHECK_NULL(which_func, comm, reduce_scatter_block) ||
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CHECK_NULL(which_func, comm, reduce_scatter) ||
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((OMPI_COMM_IS_INTRA(comm)) && CHECK_NULL(which_func, comm, scan)) ||
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CHECK_NULL(which_func, comm, scatter) ||
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CHECK_NULL(which_func, comm, scatterv) ||
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CHECK_NULL(which_func, comm, iallgather) ||
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CHECK_NULL(which_func, comm, iallgatherv) ||
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CHECK_NULL(which_func, comm, iallreduce) ||
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CHECK_NULL(which_func, comm, ialltoall) ||
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CHECK_NULL(which_func, comm, ialltoallv) ||
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CHECK_NULL(which_func, comm, ialltoallw) ||
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CHECK_NULL(which_func, comm, ibarrier) ||
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CHECK_NULL(which_func, comm, ibcast) ||
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((OMPI_COMM_IS_INTRA(comm)) && CHECK_NULL(which_func, comm, iexscan)) ||
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CHECK_NULL(which_func, comm, igather) ||
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CHECK_NULL(which_func, comm, igatherv) ||
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CHECK_NULL(which_func, comm, ireduce) ||
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CHECK_NULL(which_func, comm, ireduce_scatter_block) ||
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CHECK_NULL(which_func, comm, ireduce_scatter) ||
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((OMPI_COMM_IS_INTRA(comm)) && CHECK_NULL(which_func, comm, iscan)) ||
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CHECK_NULL(which_func, comm, iscatter) ||
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CHECK_NULL(which_func, comm, iscatterv)) {
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/* TODO -- Once the topology flags are set before coll_select then
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* check if neighborhood collectives have been set. */
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opal_show_help("help-mca-coll-base.txt",
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"comm-select:no-function-available", true, which_func);
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mca_coll_base_comm_unselect(comm);
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return OMPI_ERR_NOT_FOUND;
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}
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return OMPI_SUCCESS;
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}
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static int avail_coll_compare (opal_list_item_t **a,
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opal_list_item_t **b) {
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avail_coll_t *acoll = (avail_coll_t *) *a;
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avail_coll_t *bcoll = (avail_coll_t *) *b;
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if (acoll->ac_priority > bcoll->ac_priority) {
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return 1;
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} else if (acoll->ac_priority < bcoll->ac_priority) {
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return -1;
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}
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return 0;
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}
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/*
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* For each module in the list, check and see if it wants to run, and
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* do the resulting priority comparison. Make a list of modules to be
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* only those who returned that they want to run, and put them in
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* priority order.
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*/
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static opal_list_t *check_components(opal_list_t * components,
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ompi_communicator_t * comm)
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{
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int priority;
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const mca_base_component_t *component;
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mca_base_component_list_item_t *cli;
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mca_coll_base_module_2_1_0_t *module;
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opal_list_t *selectable;
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avail_coll_t *avail;
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/* Make a list of the components that query successfully */
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selectable = OBJ_NEW(opal_list_t);
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/* Scan through the list of components */
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OPAL_LIST_FOREACH(cli, &ompi_coll_base_framework.framework_components, mca_base_component_list_item_t) {
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component = cli->cli_component;
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priority = check_one_component(comm, component, &module);
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if (priority >= 0) {
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/* We have a component that indicated that it wants to run
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by giving us a module */
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avail = OBJ_NEW(avail_coll_t);
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avail->ac_priority = priority;
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avail->ac_module = module;
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opal_list_append(selectable, &avail->super);
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}
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}
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/* If we didn't find any available components, return an error */
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if (0 == opal_list_get_size(selectable)) {
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OBJ_RELEASE(selectable);
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return NULL;
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}
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/* Put this list in priority order */
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opal_list_sort(selectable, avail_coll_compare);
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/* All done */
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return selectable;
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}
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/*
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* Check a single component
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*/
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static int check_one_component(ompi_communicator_t * comm,
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const mca_base_component_t * component,
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mca_coll_base_module_2_1_0_t ** module)
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{
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int err;
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int priority = -1;
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err = query(component, comm, &priority, module);
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if (OMPI_SUCCESS == err) {
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priority = (priority < 100) ? priority : 100;
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opal_output_verbose(10, ompi_coll_base_framework.framework_output,
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"coll:base:comm_select: component available: %s, priority: %d",
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component->mca_component_name, priority);
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} else {
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priority = -1;
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opal_output_verbose(10, ompi_coll_base_framework.framework_output,
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"coll:base:comm_select: component not available: %s",
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component->mca_component_name);
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}
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return priority;
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}
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/**************************************************************************
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* Query functions
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**************************************************************************/
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/*
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* Take any version of a coll module, query it, and return the right
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* module struct
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*/
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static int query(const mca_base_component_t * component,
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ompi_communicator_t * comm,
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int *priority, mca_coll_base_module_2_1_0_t ** module)
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{
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*module = NULL;
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if (2 == component->mca_type_major_version &&
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0 == component->mca_type_minor_version &&
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0 == component->mca_type_release_version) {
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const mca_coll_base_component_2_0_0_t *coll100 =
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(mca_coll_base_component_2_0_0_t *) component;
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return query_2_0_0(coll100, comm, priority, module);
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}
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/* Unknown coll API version -- return error */
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return OMPI_ERROR;
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}
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static int query_2_0_0(const mca_coll_base_component_2_0_0_t * component,
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ompi_communicator_t * comm, int *priority,
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mca_coll_base_module_2_1_0_t ** module)
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{
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mca_coll_base_module_2_1_0_t *ret;
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/* There's currently no need for conversion */
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ret = component->collm_comm_query(comm, priority);
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if (NULL != ret) {
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*module = ret;
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return OMPI_SUCCESS;
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}
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return OMPI_ERROR;
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}
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