Difference: BatchSystem (7 vs. 8)

Revision 82013-01-17 - AndrewPickford

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Batch System

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The PPE group has limited resources for batch computing. The ppepbs batch system is provided for running a small number of jobs. If a large number of jobs are needed then please use the Grid or try the Compute Cluster
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The PPE group has limited resources for batch computing. The ppepbs batch system is provided for running a small number of jobs. If a large number of jobs are needed then please use the Grid or try the Compute Cluster.
 
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PPEPBS

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The PPE batch system that is managed via the TORQUE Resource Manager (based on OpenPBS) and the Maui scheduler. The batch system can be accessed from any linux desktop using the pbs commands described below.
 
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The PPE group has a small batch system that is managed via the TORQUE Resource Manager (based on OpenPBS) and the Maui scheduler. The batch nodes are installed with mixture of 64 bit SL4 and SL5. There are 47 cpus for SL5 jobs and 40 cpus for SL4 jobs. Eight queues are available spilt into two groups: four queues for SL4 jobs and four queues for SL5 jobs (see the queues section below). Executables should be built on one of the PPE Linux desktops machines of the required flavour. The version of scientific linux install on a machine can be checked by examining the /etc/redhat-release file:
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The batch nodes are installed with mixture of 64 bit SL4 and SL5. There are 47 cpus for SL5 jobs and 40 cpus for SL4 jobs. Eight queues are available spilt into two groups: four queues for SL4 jobs and four queues for SL5 jobs (see the queues section below). Executables should be built on one of the PPE Linux desktops machines of the required flavour. The version of scientific linux install on a machine can be checked by examining the /etc/redhat-release file:
 
cat /etc/redhat-release

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 a 64 bit machine will return x86_64 and 32 bit machine i686.

Job submission

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Jobs can be submitted to a TORQUE queue via qsub, e.g.:
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From any ppe linux desktop jobs can be submitted to a TORQUE queue via qsub, e.g.:
 
ssh ppepbs

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 echo "This is a test..."
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More documentation is given in the qsub man page. The TORQUE documentation pages installed on ppepbs can be listed via

ssh ppepbs
rpm -ql torque-docs
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More documentation is given in the qsub man page.
 

Queues

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There are currently eight queues on ppepbs. The four queues ending in '4' will run jobs on SL4 machines and the four queues ending in '5' will run jobs on SL5 machines:
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There are currently eight queues on the batch system. The four queues ending in '4' will run jobs on SL4 machines and the four queues ending in '5' will run jobs on SL5 machines:
 
Queue            Memory CPU Time Walltime Node  Run Que Lm  State

 
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