dmtcp_launch - Man Page
launch a process under DMTCP control.
Synopsis
dmtcp_launch [Options] <command> [args...]
Description
dmtcp_launch launches a process under DMTCP control.
A typical usage is:
rm ckpt_a.out_*.dmtcp # Remove any stale copies of ckpt image
dmtcp_launch --interval 5 a.out
dmtcp_command --checkpoint # Execute this in another window
#Kill the currently running a.out process
dmtcp_restart ckpt_a.out_*.dmtcp
Options
Connecting to the DMTCP Coordinator
- -h, --coord-host hostname (environment variable DMTCP_COORD_HOST)
Hostname where dmtcp_coordinator is run (default: localhost)
- -p, --coord-port port (environment variable DMTCP_COORD_PORT)
Port where dmtcp_coordinator is run (default: 7779)
- --port-file filename
File to write listener port number. (Useful with --coord-port 0, which is used to assign a random port)
- -j, --join
Join an existing coordinator, raise error if one doesn't already exist
- --new-coordinator
Create a new coordinator at the given port. Fail if one already exists on the given port. The port can be specified with --coord-port, or with environment variable DMTCP_COORD_PORT. If no port is specified, start coordinator at a random port (same as specifying port '0').
- --no-coordinator
Execute the process in stand-alone coordinator-less mode.
Use dmtcp_command or --interval to request checkpoints.- -i, --interval seconds (environment variable DMTCP_CHECKPOINT_INTERVAL)
Time in seconds between automatic checkpoints. 0 implies never (manual ckpt only); if not set and no env var, use default value set in dmtcp_coordinator or dmtcp_command. Not allowed if --join is specified
Checkpoint image generation
- --gzip, --no-gzip (environment variable DMTCP_GZIP=[01])
Enable/disable compression of checkpoint images (default: 1 (enabled))
WARNING: gzip adds seconds. Without gzip, ckpt is often < 1s- --ckptdir path (environment variable DMTCP_CHECKPOINT_DIR)
Directory to store checkpoint images (default: curr dir at launch)
- --ckpt-open-files
Checkpoint open files and restore old working dir. (default: do neither)
- --checkpoint-open-files
Deprecated. Use --ckpt-open-files instead.
- --ckpt-signal signum
Signal number used internally by DMTCP for checkpointing (default: 12)
- --ckpt-signal signum
Deprecated. Use --ckpt-signal instead.
Enable/disable plugins
- --with-plugin plugins (environment variable DMTCP_PLUGIN)
Colon-separated list of DMTCP plugins to be preloaded with DMTCP. (Absolute pathnames are required.)
- --batch-queue, --rm
Enable support for resource managers (Torque PBS and SLURM). (default: disabled)
- --ptrace
Enable support for PTRACE system call for gdb/strace etc. (default: disabled)
- --modify-env
Update environment variables based on the environment on the restart host (e.g., DISPLAY=$DISPLAY). This can be set in a file dmtcp_env.txt. (default: disabled)
- --ib, --infiniband
Enable InfiniBand plugin. (default: disabled)
- --disable-alloc-plugin (environment variable DMTCP_ALLOC_PLUGIN=[01])
Disable alloc plugin (default: enabled).
- --disable-dl-plugin (environment variable DMTCP_DL_PLUGIN=[01])
Disable dl plugin (default: enabled).
- --disable-all-plugins (EXPERTS ONLY, FOR DEBUGGING)
Disable all plugins.
Other options
- --prefix path
Prefix where DMTCP is installed on remote nodes.
- --tmpdir path (environment variable DMTCP_TMPDIR)
Directory to store temporary files (default: $TMDPIR/dmtcp-$USER@$HOST or /tmp/dmtcp-$USER@$HOST)
- -q, --quiet (or set environment variable DMTCP_QUIET = 0, 1, or 2)
Skip NOTE messages; if given twice, also skip WARNINGs
- --help
Print this message and exit.
- --version
Print version information and exit.
Reporting Bugs
Report bugs to: dmtcp-forum@lists.sourceforge.net
DMTCP home page: <http://dmtcp.sourceforge.net>
See Also
dmtcp(1), dmtcp_coordinator(1), dmtcp_launch(1), dmtcp_restart(1), dmtcp_command(1)
Author
See /usr/share/doc/dmtcp-3.0.0/AUTHORS.
Version
DMTCP version 3.0.0 of September, 2018.
Copyright
See /usr/share/doc/dmtcp-3.0.0/COPYING file.
License LGPLv3+: GNU LGPL version 3 or later <http://gnu.org/licenses/lgpl.html>.
This program comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to redistribute it under certain conditions; see COPYING file for details.
Referenced By
dmtcp_command(1), dmtcp_coordinator(1), dmtcp_restart(1), dmtcp_srun_helper(1).