doom(1) - Linux man page

Name

doom - Deliver a signal to a LAM process.

Syntax

doom [-h] [-<signo>] <nodes> [<processes>]

Options

-h
Print the command help menu.
-<signo>
Deliver the signal <signo>.

Description

Most MPI users will probably not need to use the doom command; see lamclean(1). This command is only installed if LAM/MPI was configured with the --with-trillium switch.

The doom command delivers a signal to one or more processes on one or more nodes. The signal is specified with the -<signo> option. Possible signals are:

  1. terminate
  2. suspend execution
  3. continue execution
  4. user defined
  5. user defined

If a signal is not specified as an option, 4 (terminate) is delivered.

If no processes are specified, all application processes on that node will receive the signal. Processes can be specified in several ways, a mixture of which may be used on the command line. They are:

i<index_list>
by the index printed by state(1)
p<pid_list>
by process identifier

Examples

doom n0-7 i2
Terminate all processes with LAM index 2 on nodes 0 through 7.
doom h p9287-9290
Terminate local processes with process IDs 9287 through 9290.
doom -5 n0-7,11
Suspend execution of all application processes on nodes 0 through 7 and 11.

See Also

state(1), lamclean(1)

Referenced By

lamtrace(1), loadgo(1), mpitask(1)