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openmpi/orte/mca/snapc/full/snapc_full_component.c
Josh Hursey e12ca48cd9 A number of C/R enhancements per RFC below:
http://www.open-mpi.org/community/lists/devel/2010/07/8240.php

Documentation:
  http://osl.iu.edu/research/ft/

Major Changes: 
-------------- 
 * Added C/R-enabled Debugging support. 
   Enabled with the --enable-crdebug flag. See the following website for more information: 
   http://osl.iu.edu/research/ft/crdebug/ 
 * Added Stable Storage (SStore) framework for checkpoint storage 
   * 'central' component does a direct to central storage save 
   * 'stage' component stages checkpoints to central storage while the application continues execution. 
     * 'stage' supports offline compression of checkpoints before moving (sstore_stage_compress) 
     * 'stage' supports local caching of checkpoints to improve automatic recovery (sstore_stage_caching) 
 * Added Compression (compress) framework to support 
 * Add two new ErrMgr recovery policies 
   * {{{crmig}}} C/R Process Migration 
   * {{{autor}}} C/R Automatic Recovery 
 * Added the {{{ompi-migrate}}} command line tool to support the {{{crmig}}} ErrMgr component 
 * Added CR MPI Ext functions (enable them with {{{--enable-mpi-ext=cr}}} configure option) 
   * {{{OMPI_CR_Checkpoint}}} (Fixes trac:2342) 
   * {{{OMPI_CR_Restart}}} 
   * {{{OMPI_CR_Migrate}}} (may need some more work for mapping rules) 
   * {{{OMPI_CR_INC_register_callback}}} (Fixes trac:2192) 
   * {{{OMPI_CR_Quiesce_start}}} 
   * {{{OMPI_CR_Quiesce_checkpoint}}} 
   * {{{OMPI_CR_Quiesce_end}}} 
   * {{{OMPI_CR_self_register_checkpoint_callback}}} 
   * {{{OMPI_CR_self_register_restart_callback}}} 
   * {{{OMPI_CR_self_register_continue_callback}}} 
 * The ErrMgr predicted_fault() interface has been changed to take an opal_list_t of ErrMgr defined types. This will allow us to better support a wider range of fault prediction services in the future. 
 * Add a progress meter to: 
   * FileM rsh (filem_rsh_process_meter) 
   * SnapC full (snapc_full_progress_meter) 
   * SStore stage (sstore_stage_progress_meter) 
 * Added 2 new command line options to ompi-restart 
   * --showme : Display the full command line that would have been exec'ed. 
   * --mpirun_opts : Command line options to pass directly to mpirun. (Fixes trac:2413) 
 * Deprecated some MCA params: 
   * crs_base_snapshot_dir deprecated, use sstore_stage_local_snapshot_dir 
   * snapc_base_global_snapshot_dir deprecated, use sstore_base_global_snapshot_dir 
   * snapc_base_global_shared deprecated, use sstore_stage_global_is_shared 
   * snapc_base_store_in_place deprecated, replaced with different components of SStore 
   * snapc_base_global_snapshot_ref deprecated, use sstore_base_global_snapshot_ref 
   * snapc_base_establish_global_snapshot_dir deprecated, never well supported 
   * snapc_full_skip_filem deprecated, use sstore_stage_skip_filem 

Minor Changes: 
-------------- 
 * Fixes trac:1924 : {{{ompi-restart}}} now recognizes path prefixed checkpoint handles and does the right thing. 
 * Fixes trac:2097 : {{{ompi-info}}} should now report all available CRS components 
 * Fixes trac:2161 : Manual checkpoint movement. A user can 'mv' a checkpoint directory from the original location to another and still restart from it. 
 * Fixes trac:2208 : Honor various TMPDIR varaibles instead of forcing {{{/tmp}}} 
 * Move {{{ompi_cr_continue_like_restart}}} to {{{orte_cr_continue_like_restart}}} to be more flexible in where this should be set. 
 * opal_crs_base_metadata_write* functions have been moved to SStore to support a wider range of metadata handling functionality. 
 * Cleanup the CRS framework and components to work with the SStore framework. 
 * Cleanup the SnapC framework and components to work with the SStore framework (cleans up these code paths considerably). 
 * Add 'quiesce' hook to CRCP for a future enhancement. 
 * We now require a BLCR version that supports {{{cr_request_file()}}} or {{{cr_request_checkpoint()}}} in order to make the code more maintainable. Note that {{{cr_request_file}}} has been deprecated since 0.7.0, so we prefer to use {{{cr_request_checkpoint()}}}. 
 * Add optional application level INC callbacks (registered through the CR MPI Ext interface). 
 * Increase the {{{opal_cr_thread_sleep_wait}}} parameter to 1000 microseconds to make the C/R thread less aggressive. 
 * {{{opal-restart}}} now looks for cache directories before falling back on stable storage when asked. 
 * {{{opal-restart}}} also support local decompression before restarting 
 * {{{orte-checkpoint}}} now uses the SStore framework to work with the metadata 
 * {{{orte-restart}}} now uses the SStore framework to work with the metadata 
 * Remove the {{{orte-restart}}} preload option. This was removed since the user only needs to select the 'stage' component in order to support this functionality. 
 * Since the '-am' parameter is saved in the metadata, {{{ompi-restart}}} no longer hard codes {{{-am ft-enable-cr}}}. 
 * Fix {{{hnp}}} ErrMgr so that if a previous component in the stack has 'fixed' the problem, then it should be skipped. 
 * Make sure to decrement the number of 'num_local_procs' in the orted when one goes away. 
 * odls now checks the SStore framework to see if it needs to load any checkpoint files before launching (to support 'stage'). This separates the SStore logic from the --preload-[binary|files] options. 
 * Add unique IDs to the named pipes established between the orted and the app in SnapC. This is to better support migration and automatic recovery activities. 
 * Improve the checks for 'already checkpointing' error path. 
 * A a recovery output timer, to show how long it takes to restart a job 
 * Do a better job of cleaning up the old session directory on restart. 
 * Add a local module to the autor and crmig ErrMgr components. These small modules prevent the 'orted' component from attempting a local recovery (Which does not work for MPI apps at the moment) 
 * Add a fix for bounding the checkpointable region between MPI_Init and MPI_Finalize. 

This commit was SVN r23587.

The following Trac tickets were found above:
  Ticket 1924 --> https://svn.open-mpi.org/trac/ompi/ticket/1924
  Ticket 2097 --> https://svn.open-mpi.org/trac/ompi/ticket/2097
  Ticket 2161 --> https://svn.open-mpi.org/trac/ompi/ticket/2161
  Ticket 2192 --> https://svn.open-mpi.org/trac/ompi/ticket/2192
  Ticket 2208 --> https://svn.open-mpi.org/trac/ompi/ticket/2208
  Ticket 2342 --> https://svn.open-mpi.org/trac/ompi/ticket/2342
  Ticket 2413 --> https://svn.open-mpi.org/trac/ompi/ticket/2413
2010-08-10 20:51:11 +00:00

169 строки
6.1 KiB
C

/*
* Copyright (c) 2004-2010 The Trustees of Indiana University.
* All rights reserved.
* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
* 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.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "orte_config.h"
#include "opal/util/output.h"
#include "orte/mca/snapc/snapc.h"
#include "orte/mca/snapc/base/base.h"
#include "snapc_full.h"
/*
* Public string for version number
*/
const char *orte_snapc_full_component_version_string =
"ORTE SNAPC full MCA component version " ORTE_VERSION;
/*
* Local functionality
*/
static int snapc_full_open(void);
static int snapc_full_close(void);
bool orte_snapc_full_skip_app = false;
bool orte_snapc_full_timing_enabled = false;
int orte_snapc_full_progress_meter = 0;
int orte_snapc_full_max_wait_time = 20;
/*
* Instantiate the public struct with all of our public information
* and pointer to our public functions in it
*/
orte_snapc_full_component_t mca_snapc_full_component = {
/* First do the base component stuff */
{
/* Handle the general mca_component_t struct containing
* meta information about the component itfull
*/
{
ORTE_SNAPC_BASE_VERSION_2_0_0,
/* Component name and version */
"full",
ORTE_MAJOR_VERSION,
ORTE_MINOR_VERSION,
ORTE_RELEASE_VERSION,
/* Component open and close functions */
snapc_full_open,
snapc_full_close,
orte_snapc_full_component_query
},
{
/* The component is checkpoint ready */
MCA_BASE_METADATA_PARAM_CHECKPOINT
},
/* Verbosity level */
0,
/* opal_output handler */
-1,
/* Default priority */
20
}
};
static int snapc_full_open(void)
{
int value;
/*
* This should be the last componet to ever get used since
* it doesn't do anything.
*/
mca_base_param_reg_int(&mca_snapc_full_component.super.base_version,
"priority",
"Priority of the SNAPC full component",
false, false,
mca_snapc_full_component.super.priority,
&mca_snapc_full_component.super.priority);
mca_base_param_reg_int(&mca_snapc_full_component.super.base_version,
"verbose",
"Verbose level for the SNAPC full component",
false, false,
mca_snapc_full_component.super.verbose,
&mca_snapc_full_component.super.verbose);
/* If there is a custom verbose level for this component than use it
* otherwise take our parents level and output channel
*/
if ( 0 != mca_snapc_full_component.super.verbose) {
mca_snapc_full_component.super.output_handle = opal_output_open(NULL);
opal_output_set_verbosity(mca_snapc_full_component.super.output_handle,
mca_snapc_full_component.super.verbose);
} else {
mca_snapc_full_component.super.output_handle = orte_snapc_base_output;
}
mca_base_param_reg_int(&mca_snapc_full_component.super.base_version,
"skip_app",
"Not for general use! For debugging only! Shortcut app level coord. [Default = disabled]",
false, false,
0,
&value);
orte_snapc_full_skip_app = OPAL_INT_TO_BOOL(value);
mca_base_param_reg_int(&mca_snapc_full_component.super.base_version,
"enable_timing",
"Enable timing information. [Default = disabled]",
false, false,
0,
&value);
orte_snapc_full_timing_enabled = OPAL_INT_TO_BOOL(value);
mca_base_param_reg_int(&mca_snapc_full_component.super.base_version,
"max_wait_time",
"Wait time before orted gives up on checkpoint (seconds)",
false, false,
20,
&orte_snapc_full_max_wait_time);
mca_base_param_reg_int(&mca_snapc_full_component.super.base_version,
"progress_meter",
"Display Progress every X percentage done. [Default = 0/off]",
false, false,
0,
&value);
orte_snapc_full_progress_meter = (value % 101);
/*
* Debug Output
*/
opal_output_verbose(10, mca_snapc_full_component.super.output_handle,
"snapc:full: open()");
opal_output_verbose(20, mca_snapc_full_component.super.output_handle,
"snapc:full: open: priority = %d",
mca_snapc_full_component.super.priority);
opal_output_verbose(20, mca_snapc_full_component.super.output_handle,
"snapc:full: open: verbosity = %d",
mca_snapc_full_component.super.verbose);
opal_output_verbose(20, mca_snapc_full_component.super.output_handle,
"snapc:full: open: max_wait_time = %d",
orte_snapc_full_max_wait_time);
opal_output_verbose(20, mca_snapc_full_component.super.output_handle,
"snapc:full: open: progress_meter = %d",
orte_snapc_full_progress_meter);
return ORTE_SUCCESS;
}
static int snapc_full_close(void)
{
opal_output_verbose(10, mca_snapc_full_component.super.output_handle,
"snapc:full: close()");
return ORTE_SUCCESS;
}