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openmpi/orte/mca/snapc/full/help-orte-snapc-full.txt

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Merging in the jjhursey-ft-cr-stable branch (r13912 : HEAD). This merge adds Checkpoint/Restart support to Open MPI. The initial frameworks and components support a LAM/MPI-like implementation. This commit follows the risk assessment presented to the Open MPI core development group on Feb. 22, 2007. This commit closes trac:158 More details to follow. This commit was SVN r14051. The following SVN revisions from the original message are invalid or inconsistent and therefore were not cross-referenced: r13912 The following Trac tickets were found above: Ticket 158 --> https://svn.open-mpi.org/trac/ompi/ticket/158
2007-03-16 23:11:45 +00:00
-*- text -*-
#
Add support for sending SIGSTOP the MPI job after the checkpoint is taken (uses a BLCR feature for the option). This commit looks larger than it really is since it includes a fair amount of code cleanup. The SIGSTOP/SIGCONT+checkpointing work uses some of the functionality in r20391. Basic use case below (note that the checkpoint generated is useable as usual if the stopped application is terminated). {{{ shell 1) mpirun -np 2 -am ft-enable-cr my-app ... running ... shell 2) ompi-checkpoint --stop -v MPIRUN_PID [localhost:001300] [ 0.00 / 0.20] Requested - ... [localhost:001300] [ 0.00 / 0.20] Pending - ... [localhost:001300] [ 0.01 / 0.21] Running - ... [localhost:001300] [ 1.01 / 1.22] Stopped - ompi_global_snapshot_1234.ckpt Snapshot Ref.: 0 ompi_global_snapshot_1234.ckpt shell 2) killall -CONT mpirun ... Application Continues execution in shell 1 ... }}} Other items in this commit are mostly cleanup that has been sitting off-trunk for too long: * Add a new {{{opal_crs_base_ckpt_options_t}}} type that encapsulates the various options that could be passed to the CRS. Currently only TERM and STOP, but this makes adding others ''much'' easier. * Eliminate ORTE_SNAPC_CKPT_STATE_PENDING_TERM, since it served a redundant purpose with the new options type. * Lay some basic ground work for some future features. This commit was SVN r21995. The following SVN revision numbers were found above: r20391 --> open-mpi/ompi@0704b9866893e8b7be5c23d72831ba5013c1d8c0
2009-09-22 18:26:12 +00:00
# Copyright (c) 2004-2009 The Trustees of Indiana University and Indiana
Merging in the jjhursey-ft-cr-stable branch (r13912 : HEAD). This merge adds Checkpoint/Restart support to Open MPI. The initial frameworks and components support a LAM/MPI-like implementation. This commit follows the risk assessment presented to the Open MPI core development group on Feb. 22, 2007. This commit closes trac:158 More details to follow. This commit was SVN r14051. The following SVN revisions from the original message are invalid or inconsistent and therefore were not cross-referenced: r13912 The following Trac tickets were found above: Ticket 158 --> https://svn.open-mpi.org/trac/ompi/ticket/158
2007-03-16 23:11:45 +00:00
# University Research and Technology
# Corporation. All rights reserved.
# Copyright (c) 2004-2005 The University of Tennessee and The University
# of Tennessee Research Foundation. All rights
# reserved.
# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
# University of Stuttgart. All rights reserved.
# Copyright (c) 2004-2005 The Regents of the University of California.
# All rights reserved.
# $COPYRIGHT$
#
# Additional copyrights may follow
#
# $HEADER$
#
# This is the US/English general help file for ORTE SnapC framework.
#
Add support for sending SIGSTOP the MPI job after the checkpoint is taken (uses a BLCR feature for the option). This commit looks larger than it really is since it includes a fair amount of code cleanup. The SIGSTOP/SIGCONT+checkpointing work uses some of the functionality in r20391. Basic use case below (note that the checkpoint generated is useable as usual if the stopped application is terminated). {{{ shell 1) mpirun -np 2 -am ft-enable-cr my-app ... running ... shell 2) ompi-checkpoint --stop -v MPIRUN_PID [localhost:001300] [ 0.00 / 0.20] Requested - ... [localhost:001300] [ 0.00 / 0.20] Pending - ... [localhost:001300] [ 0.01 / 0.21] Running - ... [localhost:001300] [ 1.01 / 1.22] Stopped - ompi_global_snapshot_1234.ckpt Snapshot Ref.: 0 ompi_global_snapshot_1234.ckpt shell 2) killall -CONT mpirun ... Application Continues execution in shell 1 ... }}} Other items in this commit are mostly cleanup that has been sitting off-trunk for too long: * Add a new {{{opal_crs_base_ckpt_options_t}}} type that encapsulates the various options that could be passed to the CRS. Currently only TERM and STOP, but this makes adding others ''much'' easier. * Eliminate ORTE_SNAPC_CKPT_STATE_PENDING_TERM, since it served a redundant purpose with the new options type. * Lay some basic ground work for some future features. This commit was SVN r21995. The following SVN revision numbers were found above: r20391 --> open-mpi/ompi@0704b9866893e8b7be5c23d72831ba5013c1d8c0
2009-09-22 18:26:12 +00:00
[waitpid_stop_fail]
Warning: waitpid(%d) failed with ret = %d while waiting on process
%s. Typically this means that you are stopping a restarted
process. We skip the rest of the checks, since this is normally
not a problem.
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