LSF Version 7.3 - Administering Platform LSF

About lstcsh
738 Administering Platform LSF
variables is automatically reflected on remote hosts. Note that shell variables, the
nice value, and resource usage limits are not automatically propagated to remote
hosts.
For more details on
lstcsh, see the lstcsh(1) man page.
In this section
◆ Task Lists on page 738
◆ Local and Remote Modes on page 738
◆ Automatic Remote Execution on page 739
Task Lists
LSF maintains two task lists for each user, a local list (.lsftask) and a remote list
(
lsf.task). Commands in the local list must be executed locally. Commands in the
remote list can be executed remotely.
See the Platform LSF Configuration Reference for information about the
.lsftask
and
lsf.task files.
Changing task list
membership
You can use the LSF commands lsltasks and lsrtasks to inspect and change the
memberships of the local and remote task lists.
Task lists and
resource
requirements
Resource requirements for specific commands can be configured using task lists.
You can optionally associate resource requirements with each command in the
remote list to help LSF find a suitable execution host for the command.
If there are multiple eligible commands on a command-line, their resource
requirements are combined for host selection.
If a command is in neither list, you can choose how
lstcsh handles the command.
Local and Remote Modes
lstcsh has two modes of operation:
◆ Local
◆ Remote
Local mode The local mode is the default mode. In local mode, a command line is eligible for
remote execution only if all of the commands on the line are present in the remote
task list, or if the
@ character is specified on the command-line to force it to be
eligible.
See @ character on page 739 for more details.
Local mode is conservative and can fail to take advantage of the performance
benefits and load-balancing advantages of LSF.
Remote mode In remote mode, a command line is considered eligible for remote execution if none
of the commands on the line is in the local task list.
Remote mode is aggressive and makes more extensive use of LSF. However, remote
mode can cause inconvenience when
lstcsh attempts to send host-specific
commands to other hosts.