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TKILL(1) LAM TOOLS TKILL(1)
tkill - Terminate LAM on one node.
tkill [-dhvN] [-f <killfile>]
-d Turn on debugging mode. This implies -v.
-h Print the command help menu.
-v Be verbose.
-N Pretend; do not take action.
-f <killfile> Use <killfile> as the name of the kill file.
The tkill tool terminates the LAM session started by hboot(1) on the local node. tkill
makes use of a kill file created by the LAM kernel, which contains the process identifiers
of every LAM process in ASCII format. A SIGHUP (see signal(3)) signal is sent to every
process listed in the kill file. tkill waits a short period of time for each process to
die. By adding the debug option, the user can see the final disposition of each process.
The mission is accomplished if all processes end up dead.
In LAM, the first process to be killed is always the kernel. When the kernel receives its
termination signal, it propagates the signal to all of its constituent processes. There-
fore, tkill will ordinarily be racing the kernel to kill all other processes. This redun-
dant aspect of tkill allows it to be used as a general purpose tool in association with
/tmp/lam-$USER@<hostname> the kill file, created by the kernel, where $USER is the
userid, and <hostname> is the name of the local machine
LAM 6.5.8 November, 2002 TKILL(1)
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