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Subject: |
Reminder of Bassi queue policies |
Author: |
Richard Gerber <ragerber_at_lbl.gov> |
Date: |
2007-04-30 11:18:29 |
Dear Bassi Users,
The Bassi queues are becoming crowded, so we'd like to review the NERSC
queue policies.
For the production batch classes (regular, premium, and low), the system
enforces the following maximum limits:
* 3 running jobs per user account
* 4 queued (I state) jobs per user account
* 2 combined interactive and debug jobs either queued or running per
user account
NERSC manually enforces the following policies:
* Jobs on User Hold are deleted 7 days following submission
* Accounts may be suspended for chaining in the interactive or debug class
Chaining is defined as using a batch script to submit another batch script.
Since jobs on User Hold age in the queue, their release may
perturb the scheduler such that overall system throughput is degraded.
In such circumstances NERSC may change the state of User Hold jobs to System
Hold, and release them only when overall system throughput will not
be affected.
Please see the following web page for more information:
http://www.nersc.gov/nusers/systems/bassi/running_jobs/classes.php#policy
Sincerely,
Richard Gerber
--
Richard Gerber, Ph.D. ragerber@lbl.gov
NERSC phone: 510-486-6820
Lawrence Berkeley National Lab fax: 510-486-4316
Berkeley, CA 94720
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