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DMTCP_LAUNCH

NAME

dmtcp_launch −− start a process under DMTCP control.

SYNOPSIS

dmtcp_launch [OPTIONS] <command> [args...]

DESCRIPTION

dmtcp_command is a tool to send user commands to the dmtcp_coordinator remotely.

OPTIONS

Connecting to the DMTCP Coordinator
−h
, −−host hostname (environment variable DMTCP_HOST)

Hostname where dmtcp_coordinator is run (default: localhost)

−p, −−port port (environment variable DMTCP_PORT)

Port where dmtcp_coordinator is run (default: 7779)

−−port−file filename

File to write listener port number. (Useful with −−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 −−port, or with environment variable DMTCP_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)

−−mtcp−checkpoint−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 AT lists DOT sourceforge DOT 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−2.2/AUTHORS.

VERSION

DMTCP version 2.2 of March 2014.

COPYRIGHT

See /usr/share/doc/dmtcp−2.2/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.

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