230d04327e
This commit removes the --with-mpi-thread-multiple option and forces MPI_THREAD_MULTIPLE support. This cleans up an abstration violation in opal where OMPI_ENABLE_THREAD_MULTIPLE determines whether the opal_using_threads is meaningful. To reduce the performance hit on MPI_THREAD_SINGLE programs an OPAL_UNLIKELY is used for the check on opal_using_threads in OPAL_THREAD_* macros. This commit does not clean up the arguments to the various functions that take whether muti-threading support is enabled. That should be done at a later time. Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
293 строки
10 KiB
C
293 строки
10 KiB
C
/*
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* Copyright (c) 2004-2010 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) 2004-2011 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) 2004-2006 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2007-2012 Los Alamos National Security, LLC. All rights
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* reserved.
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* Copyright (c) 2008 Cisco Systems, Inc. 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 "opal/util/output.h"
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#include <stdlib.h>
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#include <string.h>
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#include "opal/runtime/opal_progress.h"
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#include "opal/mca/btl/base/base.h"
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#include "opal/mca/pmix/pmix.h"
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#include "ompi/runtime/ompi_cr.h"
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#include "ompi/mca/bml/base/base.h"
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#include "ompi/mca/bml/base/bml_base_btl.h"
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#include "ompi/mca/pml/base/base.h"
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#include "ompi/proc/proc.h"
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#include "bml_r2.h"
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#include "bml_r2_ft.h"
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int mca_bml_r2_ft_event(int state)
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{
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#if OPAL_ENABLE_FT_CR == 1
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static bool first_continue_pass = false;
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ompi_proc_t** procs = NULL;
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size_t num_procs;
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size_t btl_idx;
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int ret, p;
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int loc_state;
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int param_type = -1;
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const char **btl_list;
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if(OPAL_CRS_CHECKPOINT == state) {
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/* Do nothing for now */
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}
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else if(OPAL_CRS_CONTINUE == state) {
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first_continue_pass = !first_continue_pass;
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/* Since nothing in Checkpoint, we are fine here (unless required by BTL) */
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if (opal_cr_continue_like_restart && !first_continue_pass) {
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procs = ompi_proc_all(&num_procs);
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if(NULL == procs) {
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return OMPI_ERR_OUT_OF_RESOURCE;
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}
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}
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}
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else if(OPAL_CRS_RESTART_PRE == state ) {
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/* Nothing here */
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}
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else if(OPAL_CRS_RESTART == state ) {
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procs = ompi_proc_all(&num_procs);
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if(NULL == procs) {
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return OMPI_ERR_OUT_OF_RESOURCE;
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}
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}
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else if(OPAL_CRS_TERM == state ) {
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;
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}
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else {
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;
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}
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/* Never call the ft_event functions attached to the BTLs on the second
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* pass of RESTART since on the first pass they were unloaded and therefore
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* no longer exist.
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*/
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if( OPAL_CRS_RESTART != state ) {
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if( OPAL_CRS_CONTINUE == state && !first_continue_pass ) {
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;
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} else {
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/* Since we only ever call into the BTLs once during the first restart
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* pass, just lie to them on this pass for a bit of local clarity.
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*/
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if( OPAL_CRS_RESTART_PRE == state ) {
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loc_state = OPAL_CRS_RESTART;
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} else {
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loc_state = state;
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}
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/*
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* Call ft_event in:
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* - BTL modules
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* - MPool modules
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*
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* These should be cleaning out stale state, and memory references in
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* preparation for being shut down.
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*/
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for(btl_idx = 0; btl_idx < mca_bml_r2.num_btl_modules; btl_idx++) {
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/*
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* Notify Mpool
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*/
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if( NULL != (mca_bml_r2.btl_modules[btl_idx])->btl_mpool &&
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NULL != (mca_bml_r2.btl_modules[btl_idx])->btl_mpool->mpool_ft_event ) {
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opal_output_verbose(10, ompi_cr_output,
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"bml:r2: ft_event: Notify the %s MPool.\n",
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(mca_bml_r2.btl_modules[btl_idx])->btl_mpool->mpool_component->mpool_version.mca_component_name);
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if(OMPI_SUCCESS != (ret = (mca_bml_r2.btl_modules[btl_idx])->btl_mpool->mpool_ft_event(loc_state) ) ) {
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continue;
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}
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}
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/*
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* Notify BTL
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*/
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if( NULL != (mca_bml_r2.btl_modules[btl_idx])->btl_ft_event) {
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opal_output_verbose(10, ompi_cr_output,
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"bml:r2: ft_event: Notify the %s BTL.\n",
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(mca_bml_r2.btl_modules[btl_idx])->btl_component->btl_version.mca_component_name);
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if(OMPI_SUCCESS != (ret = (mca_bml_r2.btl_modules[btl_idx])->btl_ft_event(loc_state) ) ) {
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continue;
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}
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}
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}
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} /* OPAL_CRS_CONTINUE == state && !first_continue_pass */
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}
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if(OPAL_CRS_CHECKPOINT == state) {
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;
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}
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else if(OPAL_CRS_CONTINUE == state) {
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/* Matches OPAL_CRS_RESTART_PRE */
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if (opal_cr_continue_like_restart && first_continue_pass) {
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if( OMPI_SUCCESS != (ret = mca_bml_r2_finalize()) ) {
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opal_output(0, "bml:r2: ft_event(Restart): Failed to finalize BML framework\n");
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return ret;
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}
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if( OMPI_SUCCESS != (ret = mca_base_framework_close(&opal_btl_base_framework)) ) {
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opal_output(0, "bml:r2: ft_event(Restart): Failed to close BTL framework\n");
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return ret;
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}
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}
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/* Matches OPAL_CRS_RESTART */
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else if (opal_cr_continue_like_restart && !first_continue_pass) {
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/*
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* Barrier to make all processes have been successfully restarted before
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* we try to remove some restart only files.
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*/
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opal_pmix.fence(NULL, 0);
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/*
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* Re-open the BTL framework to get the full list of components.
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*/
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if( OMPI_SUCCESS != (ret = mca_base_framework_open(&opal_btl_base_framework, 0)) ) {
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opal_output(0, "bml:r2: ft_event(Restart): Failed to open BTL framework\n");
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return ret;
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}
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/*
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* Re-select the BTL components/modules
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* This will cause the BTL components to discover the available
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* network options on this machine, and post proper modex informaiton.
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*/
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if( OMPI_SUCCESS != (ret = mca_btl_base_select(OPAL_ENABLE_PROGRESS_THREADS, 1) ) ) {
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opal_output(0, "bml:r2: ft_event(Restart): Failed to select in BTL framework\n");
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return ret;
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}
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/*
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* Clear some structures so we can properly repopulate them
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*/
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mca_bml_r2.btls_added = false;
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for(p = 0; p < (int)num_procs; ++p) {
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if( NULL != procs[p]->proc_endpoints[OMPI_PROC_ENDPOINT_TAG_BML]) {
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OBJ_RELEASE(procs[p]->proc_endpoints[OMPI_PROC_ENDPOINT_TAG_BML]);
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procs[p]->proc_endpoints[OMPI_PROC_ENDPOINT_TAG_BML] = NULL;
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}
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OBJ_RELEASE(procs[p]);
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}
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if( NULL != procs ) {
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free(procs);
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procs = NULL;
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}
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}
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}
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else if(OPAL_CRS_RESTART_PRE == state ) {
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opal_output_verbose(10, ompi_cr_output,
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"bml:r2: ft_event(Restart): Finalize BML\n");
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/*
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* Finalize the BML
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* - Flush progress functions
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* - Flush module references
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* - mca_btl_base_close()
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* Need to do this because we may have BTL components that were
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* unloaded in the first selection that may be available now.
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* Conversely we may have BTL components loaded now that
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* are not available now.
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*/
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if( OMPI_SUCCESS != (ret = mca_bml_r2_finalize()) ) {
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opal_output(0, "bml:r2: ft_event(Restart): Failed to finalize BML framework\n");
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return ret;
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}
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if( OMPI_SUCCESS != (ret = mca_base_framework_close(&opal_btl_base_framework)) ) {
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opal_output(0, "bml:r2: ft_event(Restart): Failed to close BTL framework\n");
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return ret;
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}
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}
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else if(OPAL_CRS_RESTART == state ) {
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/*
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* Barrier to make all processes have been successfully restarted before
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* we try to remove some restart only files.
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*/
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opal_pmix.fence(NULL, 0);
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/*
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* Re-open the BTL framework to get the full list of components.
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* - but first clear the MCA value that was there
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*/
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param_type = mca_base_var_find("ompi", "btl", NULL, NULL);
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btl_list = NULL;
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mca_base_var_get_value(param_type, &btl_list, NULL, NULL);
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opal_output_verbose(11, ompi_cr_output,
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"Restart (Previous BTL MCA): <%s>\n", btl_list ? btl_list[0] : "");
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if( OMPI_SUCCESS != (ret = mca_base_framework_open(&opal_btl_base_framework, 0)) ) {
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opal_output(0, "bml:r2: ft_event(Restart): Failed to open BTL framework\n");
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return ret;
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}
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/* The reregistered paramter is guaranteed to have the same index */
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btl_list = NULL;
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mca_base_var_get_value(param_type, &btl_list, NULL, NULL);
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opal_output_verbose(11, ompi_cr_output,
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"Restart (New BTL MCA): <%s>\n", btl_list ? btl_list[0] : "");
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if( NULL != btl_list ) {
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free(btl_list);
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btl_list = NULL;
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}
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/*
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* Re-select the BTL components/modules
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* This will cause the BTL components to discover the available
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* network options on this machine, and post proper modex informaiton.
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*/
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if( OMPI_SUCCESS != (ret = mca_btl_base_select(OPAL_ENABLE_PROGRESS_THREADS, 1) ) ) {
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opal_output(0, "bml:r2: ft_event(Restart): Failed to select in BTL framework\n");
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return ret;
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}
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/*
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* Clear some structures so we can properly repopulate them
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*/
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mca_bml_r2.btls_added = false;
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for(p = 0; p < (int)num_procs; ++p) {
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if( NULL != procs[p]->proc_endpoints[OMPI_PROC_ENDPOINT_TAG_BML]) {
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OBJ_RELEASE(procs[p]->proc_endpoints[OMPI_PROC_ENDPOINT_TAG_BML]);
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procs[p]->proc_endpoints[OMPI_PROC_ENDPOINT_TAG_BML] = NULL;
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}
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OBJ_RELEASE(procs[p]);
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}
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if( NULL != procs ) {
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free(procs);
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procs = NULL;
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}
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}
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else if(OPAL_CRS_TERM == state ) {
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;
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}
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else {
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;
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}
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#endif
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return OMPI_SUCCESS;
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}
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