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Administering Platform LSF - SAS

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Host Partition Fairshare<br />

Host Partition Fairshare<br />

About host partition fairshare<br />

Fairshare policy configured at the host level handles resource contention<br />

across multiple queues.<br />

You can define a different fairshare policy for every host partition. If multiple<br />

queues use the host partition, a user has the same priority across multiple<br />

queues.<br />

To run a job on a host that has fairshare, users must have a share assignment<br />

(USER_SHARES in the HostPartition section of lsb.hosts). Even cluster<br />

administrators cannot submit jobs to a fairshare host if they do not have a share<br />

assignment.<br />

Viewing host partition information<br />

Example<br />

Use bhpart to view the following information:<br />

◆ Host partitions configured in your cluster<br />

◆ Number of shares (for each user or group in a host partition)<br />

◆ Dynamic share priority (for each user or group in a host partition)<br />

◆ Number of started jobs<br />

◆ Number of reserved jobs<br />

◆ CPU time, in seconds (cumulative CPU time for all members of the group,<br />

recursively)<br />

◆ Run time, in seconds (historical and actual run time for all members of the<br />

group, recursively)<br />

% bhpart Partition1<br />

HOST_PARTITION_NAME: Partition1<br />

HOSTS: hostA hostB hostC<br />

SHARE_INFO_FOR: Partition1/<br />

USER/GROUP SHARES PRIORITY STARTED RESERVED CPU_TIME RUN_TIME<br />

group1 100 5.440 5 0 200.0 1324<br />

208<br />

<strong>Administering</strong> <strong>Platform</strong> <strong>LSF</strong>

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