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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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