IBM LoadLeveler for AIX 5L: Using and Administering

llfavorjob - Reorder system queue by job

Purpose

Sets specified jobs to a higher system priority than all jobs that are not favored. This command also unfavors previously favored job(s), restoring the original priority, when you specify the -u flag.

Syntax

llfavorjob [-?] [-H] [-v] [-q] [-u] <joblist>

Flags

-?

Provides a short usage message.

-H

Provides extended help information.

-v

Outputs the name of the command, release number, service level, service level date, and operating system used to build the command.

-q

Specifies quiet mode: print no messages other than error messages.

-u

Unfavors previously favored jobs, requeuing them according to their original priority levels.

joblist

Is a blank-delimited list of jobs of the form host.jobid.stepid where:

• host is the name of the schedd machine to which the job was submitted (delimited by dot). The default is the local machine.
• jobid is the job ID assigned to the job by LoadLeveler when it was submitted using the llsubmit command. jobid is required.
• stepid (delimited by dot) Is the job step ID assigned to the job by LoadLeveler when it was submitted using the llsubmit command. The default is to include all members of the job.

Description

If this command is issued against jobs that are already running, it has no effect. If the job vacates, however, and returns to the queue, the job gets re-ordered with the new priority.

If more than one job is affected by this command, then the jobs are ordered by the sysprio expression and are scanned before the not favored jobs. However, favored jobs which do not match the job requirements with available machines may run after not favored jobs. This command remains in effect until reversed with the -u option.

Examples

This example assigns job steps 12.4 on the machine iron and 8.2 on zinc the highest priorities in the system, with the job steps ordered by the sysprio expression:

llfavorjob iron.12.4 zinc.8.2

This example unfavors job steps 12.4 on the machine iron and 8.2 on the machine zinc:

llfavorjob -u iron.12.4 zinc.8.2