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Last Modified: Tuesday, 17-Oct-2006 16:39:20 EDT

Revised (03/2003) CSB Policy on compute-intensive jobs and batch queues

Any program, or series of programs, which will take a substantial amount of computing time must be submitted as a batch job. Implementation of this system resource is via the DQS Distributed Queueing System, described in the document on Batch Queuing.

Policies are enforced by a combination of technical means and voluntary compliance. Users are expected to follow policy guidelines even when they are not automatically enforced by the DQS system.

Policy for use of DQS System

Each user is allowed a maximum of one job in each of the three length categories (short, medium, long). In addition, a user may have up to two jobs in sponge queues. However, there is a maximum of three jobs per user running on the fast computers: crunch3, crunch1 and crunch2.

The Batch Queuing document describes available queues in each category.

Users may not chain jobs. IE, if the queue medium-ajax has a limit of 1 job, it would be chaining to submit multiple jobs to that queue. The jobs would run serially, so would not violate the policy of one job per user in the medium queue. However, medium-ajax would still be effectively blocked to other users. The only valid way to chain jobs is, at the end of of a batch script, include a command to qsub the next job.

Using the DQS System

See Using Batch Queues in the CSB Core for instructions on using the DQS batch queueing system.

Last Modified: Tuesday, 17-Oct-2006 16:39:20 EDT


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