PREEMPT_JOBTYPE

Syntax

PREEMPT_JOBTYPE=[EXCLUSIVE] [BACKFILL]

Description

If preemptive scheduling is enabled, this parameter enables preemption of exclusive and backfill jobs.

Specify one or both of the following keywords. Separate keywords with a space.

EXCLUSIVE

Enables preemption of and preemption by exclusive jobs. LSB_DISABLE_LIMLOCK_EXCL=Y in lsf.conf must also be defined.

BACKFILL

Enables preemption of backfill jobs. Jobs from higher priority queues can preempt jobs from backfill queues that are either backfilling reserved job slots or running as normal jobs.

AFFINITY

Enables affinity resource preemption. Affinity resources (thread, core, socket, and NUMA) held by a suspended job can be used by a pending job through queue-based preemption, or through License Scheduler preemption.

Default

Not defined. Exclusive and backfill jobs are only preempted if the exclusive low priority job is running on a different host than the one used by the preemptive high priority job.