dmtcp_restart(1) 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: $TMDPIR/[email protected]$HOST or /tmp/[email protected]$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: [email protected]
DMTCP home page: <>


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.