fceabb2498
This is a fairly intrusive change, but outside of the moving of opal/event to opal/mca/event, the only changes involved (a) changing all calls to opal_event functions to reflect the new framework instead, and (b) ensuring that all opal_event_t objects are properly constructed since they are now true opal_objects. Note: Shiqing has just returned from vacation and has not yet had a chance to complete the Windows integration. Thus, this commit almost certainly breaks Windows support on the trunk. However, I want this to have a chance to soak for as long as possible before I become less available a week from today (going to be at a class for 5 days, and thus will only be sparingly available) so we can find and fix any problems. Biggest change is moving the libevent code from opal/event to a new opal/mca/event framework. This was done to make it much easier to update libevent in the future. New versions can be inserted as a new component and tested in parallel with the current version until validated, then we can remove the earlier version if we so choose. This is a statically built framework ala installdirs, so only one component will build at a time. There is no selection logic - the sole compiled component simply loads its function pointers into the opal_event struct. I have gone thru the code base and converted all the libevent calls I could find. However, I cannot compile nor test every environment. It is therefore quite likely that errors remain in the system. Please keep an eye open for two things: 1. compile-time errors: these will be obvious as calls to the old functions (e.g., opal_evtimer_new) must be replaced by the new framework APIs (e.g., opal_event.evtimer_new) 2. run-time errors: these will likely show up as segfaults due to missing constructors on opal_event_t objects. It appears that it became a typical practice for people to "init" an opal_event_t by simply using memset to zero it out. This will no longer work - you must either OBJ_NEW or OBJ_CONSTRUCT an opal_event_t. I tried to catch these cases, but may have missed some. Believe me, you'll know when you hit it. There is also the issue of the new libevent "no recursion" behavior. As I described on a recent email, we will have to discuss this and figure out what, if anything, we need to do. This commit was SVN r23925.
400 строки
10 KiB
C
400 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) 2004-2005 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 Los Alamos National Security, LLC. All rights
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* 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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/** @file
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*
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* ORTE Layer Checkpoint/Restart Runtime functions
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*
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*/
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#include "orte_config.h"
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#include "orte/constants.h"
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#include <errno.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif /* HAVE_UNISTD_H */
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#ifdef HAVE_FCNTL_H
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#include <fcntl.h>
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#endif /* HAVE_FCNTL_H */
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif /* HAVE_SYS_TYPES_H */
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#ifdef HAVE_SYS_STAT_H
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#include <sys/stat.h> /* for mkfifo */
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#endif /* HAVE_SYS_STAT_H */
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#include "opal/util/opal_environ.h"
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#include "opal/util/output.h"
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#include "opal/util/basename.h"
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#include "opal/mca/event/event.h"
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#include "opal/mca/crs/crs.h"
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#include "opal/mca/crs/base/base.h"
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#include "opal/runtime/opal_cr.h"
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#include "orte/runtime/orte_cr.h"
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#include "orte/util/proc_info.h"
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#include "orte/runtime/orte_globals.h"
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#include "orte/mca/plm/base/base.h"
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#include "orte/mca/ess/ess.h"
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#include "orte/mca/ess/base/base.h"
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#include "orte/mca/routed/base/base.h"
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#include "orte/mca/routed/routed.h"
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#include "orte/mca/rml/base/base.h"
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#include "orte/mca/iof/base/base.h"
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#include "orte/mca/snapc/snapc.h"
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#include "orte/mca/snapc/base/base.h"
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#include "orte/mca/filem/base/base.h"
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/*************
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* Local functions
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*************/
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static int orte_cr_coord_pre_ckpt(void);
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static int orte_cr_coord_pre_restart(void);
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static int orte_cr_coord_pre_continue(void);
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static int orte_cr_coord_post_ckpt(void);
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static int orte_cr_coord_post_restart(void);
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static int orte_cr_coord_post_continue(void);
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bool orte_cr_continue_like_restart = false;
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bool orte_cr_flush_restart_files = true;
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/*************
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* Local vars
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*************/
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static opal_cr_coord_callback_fn_t prev_coord_callback = NULL;
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static int orte_cr_output = -1;
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/*
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* CR Init
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*/
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int orte_cr_init(void)
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{
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int ret, exit_status = ORTE_SUCCESS;
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int val;
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/*
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* OPAL Frameworks
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*/
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if (OPAL_SUCCESS != (ret = opal_cr_init() ) ) {
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exit_status = ret;
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goto cleanup;
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}
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/*
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* Register MCA Parameters
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*/
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mca_base_param_reg_int_name("orte_cr", "verbose",
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"Verbose output for the ORTE Checkpoint/Restart functionality",
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false, false,
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0,
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&val);
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/*** RHC: This is going to crash-and-burn when the output conversion is
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* completed as opal_output will have no idea what opal_cr_output stream means,
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* or even worse, will have assigned it to someone else!
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*/
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if(0 != val) {
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orte_cr_output = opal_output_open(NULL);
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opal_output_set_verbosity(orte_cr_output, val);
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} else {
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orte_cr_output = opal_cr_output;
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}
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opal_output_verbose(10, orte_cr_output,
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"orte_cr: init: orte_cr_init()\n");
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/* Init ORTE Entry Point Function */
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if( ORTE_SUCCESS != (ret = orte_cr_entry_point_init()) ) {
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exit_status = ret;
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goto cleanup;
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}
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/* Register the ORTE interlevel coordination callback */
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opal_cr_reg_coord_callback(orte_cr_coord, &prev_coord_callback);
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/* Typically this is not needed. Individual BTLs will set this as needed */
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orte_cr_continue_like_restart = false;
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orte_cr_flush_restart_files = true;
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cleanup:
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return exit_status;
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}
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/*
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* Finalize
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*/
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int orte_cr_finalize(void)
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{
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opal_output_verbose(10, orte_cr_output,
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"orte_cr: finalize: orte_cr_finalize()");
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orte_cr_entry_point_finalize();
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/*
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* OPAL Frameworks...
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*/
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opal_cr_finalize();
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return ORTE_SUCCESS;
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}
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/*
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* Interlayer coordination callback
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*/
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int orte_cr_coord(int state)
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{
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int ret, exit_status = ORTE_SUCCESS;
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opal_output_verbose(10, orte_cr_output,
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"orte_cr: coord: orte_cr_coord(%s)",
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opal_crs_base_state_str((opal_crs_state_type_t)state));
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/*
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* Before calling the previous callback, we have the opportunity to
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* take action given the state.
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*/
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if(OPAL_CRS_CHECKPOINT == state) {
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/* Do Checkpoint Phase work */
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orte_cr_coord_pre_ckpt();
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}
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else if (OPAL_CRS_CONTINUE == state ) {
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/* Do Continue Phase work */
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orte_cr_coord_pre_continue();
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}
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else if (OPAL_CRS_RESTART == state ) {
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/* Do Restart Phase work */
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orte_cr_coord_pre_restart();
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}
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else if (OPAL_CRS_TERM == state ) {
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/* Do Continue Phase work in prep to terminate the application */
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}
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else {
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/* We must have been in an error state from the checkpoint
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* recreate everything, as in the Continue Phase
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*/
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}
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/*
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* Call the previous callback, which should be OPAL
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*/
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if(OPAL_SUCCESS != (ret = prev_coord_callback(state)) ) {
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exit_status = ret;
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goto cleanup;
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}
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/*
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* After calling the previous callback, we have the opportunity to
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* take action given the state to tidy up.
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*/
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if(OPAL_CRS_CHECKPOINT == state) {
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/* Do Checkpoint Phase work */
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orte_cr_coord_post_ckpt();
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}
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else if (OPAL_CRS_CONTINUE == state ) {
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/* Do Continue Phase work */
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orte_cr_coord_post_continue();
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}
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else if (OPAL_CRS_RESTART == state ) {
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/* Do Restart Phase work */
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orte_cr_coord_post_restart();
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}
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else if (OPAL_CRS_TERM == state ) {
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/* Do Continue Phase work in prep to terminate the application */
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}
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else {
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/* We must have been in an error state from the checkpoint
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* recreate everything, as in the Continue Phase
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*/
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}
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cleanup:
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return exit_status;
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}
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/*************
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* Pre Lower Layer
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*************/
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static int orte_cr_coord_pre_ckpt(void) {
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int ret, exit_status = ORTE_SUCCESS;
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/*
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* All the checkpoint heavey lifting in here...
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*/
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opal_output_verbose(10, orte_cr_output,
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"orte_cr: coord_pre_ckpt: orte_cr_coord_pre_ckpt()");
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/*
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* Notify the ESS
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*/
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if( NULL != orte_ess.ft_event ) {
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if( ORTE_SUCCESS != (ret = orte_ess.ft_event(OPAL_CRS_CHECKPOINT))) {
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exit_status = ret;
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goto cleanup;
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}
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}
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cleanup:
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return exit_status;
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}
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static int orte_cr_coord_pre_restart(void) {
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/*
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* Can not really do much until OPAL is up and running,
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* so defer action until the post_restart function.
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*/
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opal_output_verbose(10, orte_cr_output,
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"orte_cr: coord_pre_restart: orte_cr_coord_pre_restart()");
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return ORTE_SUCCESS;
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}
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static int orte_cr_coord_pre_continue(void) {
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/*
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* Can not really do much until OPAL is up and running,
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* so defer action until the post_continue function.
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*/
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opal_output_verbose(10, orte_cr_output,
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"orte_cr: coord_pre_continue: orte_cr_coord_pre_continue()");
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return ORTE_SUCCESS;
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}
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/*************
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* Post Lower Layer
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*************/
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static int orte_cr_coord_post_ckpt(void) {
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/*
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* Now that OPAL is shutdown, we really can't do much
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* so assume pre_ckpt took care of everything.
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*/
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opal_output_verbose(10, orte_cr_output,
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"orte_cr: coord_post_ckpt: orte_cr_coord_post_ckpt()");
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return ORTE_SUCCESS;
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}
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static int orte_cr_coord_post_restart(void) {
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int ret, exit_status = ORTE_SUCCESS;
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orte_proc_type_t prev_type = ORTE_PROC_TYPE_NONE;
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char * tmp_dir = NULL;
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opal_output_verbose(10, orte_cr_output,
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"orte_cr: coord_post_restart: orte_cr_coord_post_restart()");
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/*
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* Add the previous session directory for cleanup
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*/
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opal_crs_base_cleanup_append(orte_process_info.job_session_dir, true);
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tmp_dir = opal_dirname(orte_process_info.job_session_dir);
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if( NULL != tmp_dir ) {
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opal_crs_base_cleanup_append(tmp_dir, true);
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free(tmp_dir);
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tmp_dir = NULL;
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}
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/*
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* Refresh System information
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*/
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prev_type = orte_process_info.proc_type;
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if( ORTE_SUCCESS != (ret = orte_proc_info_finalize()) ) {
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exit_status = ret;
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}
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if( NULL != orte_process_info.my_hnp_uri ) {
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free(orte_process_info.my_hnp_uri);
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orte_process_info.my_hnp_uri = NULL;
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}
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if( NULL != orte_process_info.my_daemon_uri ) {
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free(orte_process_info.my_daemon_uri);
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orte_process_info.my_daemon_uri = NULL;
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}
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if( ORTE_SUCCESS != (ret = orte_proc_info()) ) {
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exit_status = ret;
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}
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orte_process_info.proc_type = prev_type;
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orte_process_info.my_name = *ORTE_NAME_INVALID;
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/*
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* Notify the ESS
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*/
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if( NULL != orte_ess.ft_event ) {
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if( ORTE_SUCCESS != (ret = orte_ess.ft_event(OPAL_CRS_RESTART))) {
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exit_status = ret;
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goto cleanup;
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}
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}
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cleanup:
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return exit_status;
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}
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static int orte_cr_coord_post_continue(void) {
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int ret, exit_status = ORTE_SUCCESS;
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opal_output_verbose(10, orte_cr_output,
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"orte_cr: coord_post_continue: orte_cr_coord_post_continue()\n");
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/*
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* Notify the ESS
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*/
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if( NULL != orte_ess.ft_event ) {
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if( ORTE_SUCCESS != (ret = orte_ess.ft_event(OPAL_CRS_CONTINUE))) {
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exit_status = ret;
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goto cleanup;
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}
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}
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cleanup:
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return exit_status;
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}
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/*************************************************
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* ORTE Entry Point functionality
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*************************************************/
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int orte_cr_entry_point_init(void)
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{
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#if 0
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/* JJH XXX
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* Make sure to finalize the OPAL Entry Point function if it is active.
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*/
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opal_cr_entry_point_finalize();
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#endif
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return ORTE_SUCCESS;
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}
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int orte_cr_entry_point_finalize(void)
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{
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/* Nothing to do here... */
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return ORTE_SUCCESS;
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}
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