Monitoring LoadLeveler jobs on Big Red at IU

On this page:

• Useful commands for checking job status
• Common status codes
• Cancelling a job

Useful commands for checking job status

Following are some useful commands for checking the status of a job you're running using LoadLeveler on Big Red at Indiana University:

• To determine the current status of all submitted jobs, enter: llq
• To see the status of only your jobs, enter: llq -u
• For a more detailed list of your jobs' status, enter: llq -u username -l

  Replace username with your username.

• For information about a particular job, enter: llq -l -s jobid

  Replace jobid with the appropriate job ID. If the job status is Idle, Queued, or Deferred, a detailed job evaluation will be given in the last section of the output. It will usually tell you why your job is not running.

  The Maui command checkjob -v yourjobid will provide further diagnostic information.

• If your job isn't running, you can find out when it is scheduled by entering: showstart jobid

  Replace jobid with the appropriate job ID.

• For an explanation of the columns displayed by llq, enter: man llq
• To determine the status of all machines running LoadLeveler, enter: llstatus

  For a description of the fields displayed, enter man llstatus .

Common status codes

Following are the more common status codes:

Cancelling a job

To cancel jobs you have submitted to LoadLeveler, whether they're waiting to run or already running, use the llcancel command. The syntax is:

This document was developed with support from the National Science Foundation (NSF) under Grant No. 0503697 to the University of Chicago and subcontracted to Indiana University. Additional support was provided by IU through its participation in the TeraGrid, which is supported by the NSF under Grants No. 0833618, SCI451237, SCI535258, and SCI504075. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the NSF.

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