Administering Platform LSF - SAS

Chapter 24
Chunk Job Dispatch
Fairshare policies and chunk jobs
Fairshare queues can use job chunking. Jobs are accumulated in the chunk job
so that priority is assigned to jobs correctly according to the fairshare policy
that applies to each user. Jobs belonging to other users are dispatched in other
chunks.
TERMINATE_WHEN job control action
If the TERMINATE_WHEN job control action is applied to a chunk job,
sbatchd kills the chunk job element that is running and puts the rest of the
waiting elements into pending state to be rescheduled later.
Enforcing resource usage limits on chunk jobs
By default, resource usage limits are not enforced for chunk jobs because
chunk jobs are typically too short to allow LSF to collect resource usage.
To enforce resource limits for chunk jobs, define LSB_CHUNK_RUSAGE=Y in
lsf.conf. Limits may not be enforced for chunk jobs that take less than a
minute to run.
See Chapter 26, “Runtime Resource Usage Limits” for more information.
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