tkill - Terminate LAM on one node.
SYNTAX
tkill [-dhvN] [-f <killfile>]
OPTIONS
-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.
DESCRIPTION
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 ker
nel. When the kernel receives its termination signal, it
propagates the signal to all of its constituent processes.
Therefore, tkill will ordinarily be racing the kernel to
kill all other processes. This redundant aspect of tkill
allows it to be used as a general purpose tool in associa
tion with hboot(1).
FILES
/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
SEE ALSO
hboot(1), lam-helpfile(5)
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