Man pages sections > man1 > dmtcp_restart

dmtcp_restart -- restart processes from given checkpoint images.

DMTCP_RESTART(1) Distributed MultiThreaded CheckPointing DMTCP_RESTART(1)


dmtcp_restart -- restart processes from given checkpoint images.


dmtcp_restart [ OPTIONS] ckpt1.dmtcp [ ckpt2.dmtcp...]


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


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

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').
-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

Other options


Allow root to run dmtcp_restart and disable uid checking. (default: disabled)
--no-strict-uid-checking (environment variable DMTCP_DISABLE_UID_CHECKING)

Disable uid checking for the checkpoint image. This allows the checkpoint image to be restarted by a different user than the one that created it.
--ckptdir path (environment variable DMTCP_CHECKPOINT_DIR)

Directory to store checkpoint images (default: use the same directory used in previous checkpoint)
--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

Print this message and exit.

Print version information and exit.


Report bugs to:
DMTCP home page: <>


dmtcp(1), dmtcp_coordinator(1), dmtcp_launch(1), dmtcp_restart(1), dmtcp_command(1)


See /usr/share/doc/dmtcp-2.2/AUTHORS.


DMTCP version 2.2 of March 2014. See /usr/share/doc/dmtcp-2.2/COPYING file.
License LGPLv3+: GNU LGPL version 3 or later <>.
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.
March 2014 Distributed MultiThreaded CheckPointing