Man pages sections > man1 > dmtcp_coordinator

dmtcp_coordinater -- coordinates checkpoints between multiple processes.

DMTCP_COORDINATOR(1) Distributed MultiThreaded CheckPointing DMTCP_COORDINATOR(1)


dmtcp_coordinater -- coordinates checkpoints between multiple processes.


dmtcp_coordinater [ OPTIONS]


dmtcp_coordinator coordinates checkpoints between multiple processes.


--port port (environment variable DMTCP_PORT)
Port to listen on (default: 7779)
--port-file filename

File to write listener port number. (Useful with --port 0, which is used to assign a random port)
--ckptdir path (environment variable DMTCP_CHECKPOINT_DIR)

Directory to store (default: ./)
--tmpdir path (environment variable DMTCP_TMPDIR)

Directory to store temporary files (default: env var TMDPIR or /tmp)

Exit automatically when last client disconnects

Exit automatically after checkpoint is created

Run silently in the background after detaching from the parent process.
--interval <val> (environment variable DMTCP_CHECKPOINT_INTERVAL)
Time in seconds between automatic checkpoints (default: 0, disabled)
-q, --quiet

Skip copyright notice.

Print this message and exit.

Print version information and exit.

Commands for Coordinator

l: List connected nodes
s: Print status message
c: Checkpoint all nodes
i: Print current checkpoint interval
(To change checkpoint interval, use dmtcp_command)
k: Kill all nodes
q: Kill all nodes and quit
?: Show this message


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