Overview
The batch system at SLAC uses the IBM Platform Load Sharing Facility, LSF, and is made up of
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Various scientific groups at SLAC contribute to the purchase of the general farm batch systems and jobs submitted to run in the general farm are scheduled according to a fairshare priority structure. If you are not part of a computing group that has a fairshare, your jobs will run according to the priority of the group called AllUsers. More information about fairshare scheduling at Slac can be found here https://confluence.slac.stanford.edu/display/SCSPub/Fairshare+Scheduling
Submitting Jobs to the General Farm
To submit jobs to the general farm you will need to
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| bsub argument | requirement | description |
|---|---|---|
| -q <queue_name> | optional | Specifies a job submission queue. Not required for running jobs in the general shared clusters. |
| -W <[hours]:minutes> | required | Wallclock runtime limit that is not normalized for CPU differences. Essential for efficient job scheduling. Jobs will be terminated if they exceed this runlimit |
| -We <[hours]:minutes> | optional | Wallclock estimated runtime limit that is not normalized for CPU differences. The system will consider this estimate for scheduling purposes. Jobs may be not terminated immediately if they exceed this limit |
| -c <[hours]:minutes> | optional | cputime limit that is normalized by the CPU factor of the assigned core. Intended to prevent runaway jobs but it is not used to schedule time on cores. |
Fermi/GLAST and batch
Information about using batch at SLAC for the Fermi/GLAST user can be found here: http://www.slac.stanford.edu/exp/glast/wb/prod/pages/installingOfflineSW/usingSlacBatchFarm.htm
Documentation
There are manpages available for the various batch commands and there is full documentation for LSF here www.slac.stanford.edu/comp/unix/package/lsf/currdoc/ .
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