Platform LSF Reference Version 6.2

lsgrun
Platform LSF Reference
213
lsgrun
executes a task on a set of hosts
SYNOPSIS
lsgrun [-i] [-p | -P | -S] [-v] -f host_file | -m host_name ... | -n num_hosts
[
-R "res_req"] [command [argument ...]]
lsgrun [-h | -V]
DESCRIPTION
Executes a task on the specified hosts. lsgrun is useful for fast global operations such
as starting daemons, replicating files to or from local disks, looking for processes
running on all hosts, checking who is logged in on each host, and so on. The hosts can
be specified using a host file, a list of host names or by letting the system select the hosts.
DEFAULT BEHAVIOR
By default:
◆ lsgrun is not interactive.
◆ The specified task will be executed sequentially on hosts with full pseudo tty
support.
◆ lsgrun does not create a pseudo-terminal.
◆ LSF uses as many processors as available to run the specified task.
◆ The resource requirement for host selection is r15s:pg.
◆ The prompt Command> is displayed to allow users to type in a command (task)
terminated by a
CTRL-D or EOF. The command is then executed on the specified
hosts.
OPTIONS
-i
Interactive operation mode. You are asked whether the task will be executed on all hosts.
If you answer
y, the task is started on all specified hosts; otherwise, you are asked to
specify hosts interactively.
-p
Parallel run mode. Executes the task on all hosts simultaneously and without pseudo
tty support.
If this option is specified and the
-P option is specified, the -P option is ignored.
This option is useful for fast start-up of tasks. However, any output from remote tasks
will arrive at the terminal in arbitrary order, depending on task execution speeds on
individual hosts.