dmtcp-1.2.5/0000755000000000000000000000000011760333242011325 5ustar rootrootdmtcp-1.2.5/install-sh0000755000000000000000000003253711574611270013346 0ustar rootroot#!/bin/sh # install - install a program, script, or datafile scriptversion=2009-04-28.21; # UTC # This originates from X11R5 (mit/util/scripts/install.sh), which was # later released in X11R6 (xc/config/util/install.sh) with the # following copyright and license. # # Copyright (C) 1994 X Consortium # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to # deal in the Software without restriction, including without limitation the # rights to use, copy, modify, merge, publish, distribute, sublicense, and/or # sell copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in # all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 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You may also peek at any GNU archive site, in case some other package would contain this missing \`$1' program." exit 1 ;; esac exit 0 # Local variables: # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "scriptversion=" # time-stamp-format: "%:y-%02m-%02d.%02H" # time-stamp-time-zone: "UTC" # time-stamp-end: "; # UTC" # End: dmtcp-1.2.5/COPYING0000644000000000000000000000344311732033331012357 0ustar rootrootDMTCP (and the included MTCP) is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License (LGPL) as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. The files dmtcp/src/dmtcpaware.c and dmtcp/src/dmtcpaware.h are released under MIT/BSD dual license. The user is allowed to use these files under either license. Files found in the directory dmtcp/src are Copyright (C) 2006-2008 by Jason Ansel, Kapil Arya, and Gene Cooperman, except that files dmtcp/src/trampolines.* are Copyright (C) 2006-2008 by Tyler Denniston, and Kapil Arya, and except that files dmtcp/src/eventwrappers.* are Copyright (C) 2012 by Kapil Arya, Gene Cooperman and Rohan Garg. Files found in the directory dmtcp/jalib are Copyright (C) 2005-2008 by Jason Ansel. Files found in the directory mtcp are Copyright (C) 2006-2012 by Michael Rieker, Jason Ansel, Kapil Arya, and Gene Cooperman. The contents of files mtcp/mtcp_sigaction_*, mtcp/sysdep-*, mtcp/NOTES-x86_64/*.[hS] and dmtcp/src/glibcsystem.cpp are taken from glibc and is Copyright (C) 1991-2000,2002,2003,2005,2007 Free Software Foundation, Inc. Files found in the directory dmtcp/plugin are Copyright (C) 2005-2012 by Jason Ansel, Kapil Arya, and Gene Cooperman, except that files found in the directory dmtcp/plugin/ptrace are Copyright (C) 2005-2012 by Ana-Maria Visan, Kapil Arya, and Gene Cooperman. Any remaining files (for building/testing) are Copyright (C) 2006-2008 Jason Ansel, Kapil Arya, and Gene Cooperman. dmtcp-1.2.5/QUICK-START0000644000000000000000000005020711732033331013016 0ustar rootroot Overview of DMTCP (Distributed MultiThreaded Checkpointing) CONCEPTS: DMTCP Checkpoint/Restart allows one to transparently checkpoint to disk a distributed computation. It works under Linux, with no modifications to the Linux kernel nor to the application binaries. It can be used by unprivileged users (no root privilege needed). One can later restart from a checkpoint, or even migrate the processes by moving the checkpoint files to another host prior to restarting. There is one DMTCP coordinator for each computation that you wish to checkpoint. By specifying --host and --port (or the environment variables DMTCP_HOST and DMTCP_PORT), you can add a process to a coordinator different from the default coordinator. If you don't specify, the default coordinator is always at (localhost, 7779). A DMTCP coordinator process is started on one host. Application binaries are started under the dmtcp_checkpoint command, causing them to connect to the coordinator upon startup. As threads are spawned, child processes are forked, remote processes are spawned via ssh, libraries are dynamically loaded, DMTCP transparently and automatically tracks them. By default, DMTCP uses gzip to compress the checkpoint images. This can be turned off (dmtcp_checkpoint --no-gzip ; or setting an environment variable to 0: DMTCP_GZIP=0). This will be faster, and if your memory is dominated by incompressible data, this can be helpful. Gzip can add seconds for large checkpoint images. Typically, checkpoint and restart is less than one second without gzip. A DMTCP checkpoint image includes any libraries (.so files) that it may have been using. This strategy is used for greater portability of the checkpoint images --- and in some cases, it even allows migration of the checkpoint images (and hence, processes) to hosts with different Linux distributions, different Linux kernels, etc. To run a program with checkpointing: 1) Run dmtcp_coordinator in a separate terminal/window bin/dmtcp_coordinator 2) In separate terminal(s), replace each command(s) with "dmtcp_checkpoint [command]" bin/dmtcp_checkpoint ./a.out 3) To checkpoint, type 'c' into dmtcp_coordinator [ In dmtcp_coordinator window: h for help, c for checkpoint, l for list of processes to be checkpointed, k to kill processes to be checkpointed, q to kill processes to be checkpointed and quit the coordinator.] 4) RESTART: Creating a checkpoint causes the dmtcp_coordinator to write a script, dmtcp_restart_script.sh, along with a checkpoint file (file type: .dmtcp) for each client process. The simplest way to restart a previously checkpointed computation is: ./bin/dmtcp_restart_script.sh [ ./dmtcp_restart_script.sh usually works "as is", but it can be edited ] [ Alternatively, if all processes were on the same processor, and there were no .dmtcp files prior to this checkpoint: ] ./bin/dmtcp_restart ckpt_*.dmtcp ============================================ CONVENIENCE COMMANDS AND DEBUGGING RESTARTED PROCESSES: # Help exists: bin/dmtcp_coordinator --help ; bin/dmtcp_checkpoint --help ; bin/dmtcp_command --help, etc. # Automatically start a coordinator in background bin/dmtcp_checkpoint ./a.out & # Checkpoint all processes of the default coordinator bin/dmtcp_command --checkpoint # Kill a.out, and optionally kill coordinator process bin/dmtcp_command --kill # Kill a.out, and optionally kill coordinator process bin/dmtcp_command --quit # Restart directly from local checkpoint images (.dmtcp files) ./dmtcp_restart_script.sh # Or else, directly restart from the ckpt images in the current directory. # (Be sure there are no old ckpt_a.out_*.dmtcp files. # Ensure that the restarted process is running, and not suspended.) bin/dmtcp_restart ckpt_a.out_*.dmtcp & # Have gdb attach to a restarted process, and debug # NOTE: You must specify 'mtcp_restart', not 'dmtcp_restart' gdb ./a.out `pgrep -n MTCP` # force a.out to exit any low level libraries and return to a known location # set a breakpoint on a common function and continue: (gdb) break write (gdb) continue ============================================ COMMAND-LINE OPTIONS: `dmtcp_checkpoint', `dmtcp_command', and 'dmtcp_restart' print their options when run with no command-line arguments. `dmtcp_coordinator' offers help when run (Type 'h' for help.). ============================================ OPTIONS THROUGH ENVIRONMENT VARIABLES: dmtcp_coordinator: DMTCP_CHECKPOINT_INTERVAL=