Administering Platform LSF - SAS

Counted Host Locked Licenses
Counted Host Locked Licenses
Counted host locked licenses are only available on specific licensed hosts, but
also place a limit on the maximum number of copies available on the host.
Configuring counted host locked licenses
Using an External
LIM (ELIM)
Using a
check_license
script
You configure counted host locked licenses by having LSF determine the
number of licenses currently available. Use either of the following to count the
host locked licenses:
◆ External LIM (ELIM)
◆ A check_licenses shell script
To use an external LIM (ELIM) to get the number of licenses currently available,
configure an external load index licenses giving the number of free licenses
on each host. To restrict the application to run only on hosts with available
licenses, specify licenses>=1 in the resource requirements for the
application.
See “External Load Indices and ELIM” on page 158 for instructions on writing
and using an ELIM and configuring resource requirements for an application.
See the Platform LSF Reference for information about the lsf.task file.
There are two ways to use a check_license shell script to check license
availability and acquire a license if one is available:
◆ Configure the check_license script as a job-level pre-execution
command when submitting the licensed job:
% bsub -m licensed_hosts -E check_license licensed_job
◆ Configure the check_license script as a queue-level pre-execution
command. See “Configuring Pre- and Post-Execution Commands” on
page 368 for information about configuring queue-level pre-execution
commands.
It is possible that the license becomes unavailable between the time the
check_license script is run, and when the job is actually run. To handle this
case, configure a queue so that jobs in this queue will be requeued if they exit
with values indicating that the license was not successfully obtained.
See “Automatic Job Requeue” on page 301 for more information.
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Administering Platform LSF