Platform LSF Reference Version 6.2

lsb.queues
Platform LSF Reference
425
If no host or host model is given, LSF uses the default run time normalization host
defined at the queue level (DEFAULT_HOST_SPEC in
lsb.queues) if it has been
configured; otherwise, LSF uses the default CPU time normalization host defined at the
cluster level (DEFAULT_HOST_SPEC in
lsb.params) if it has been configured;
otherwise, the host with the largest CPU factor (the fastest host in the cluster).
For MultiCluster jobs, if no other CPU time normalization host is defined and
information about the submission host is not available, LSF uses the host with the
largest CPU factor (the fastest host in the cluster).
Jobs submitted to a chunk job queue are not chunked if RUNLIMIT is greater than 30
minutes.
RUNLIMIT is required for queues configured with INTERRUPTIBLE_BACKFILL.
Default
Unlimited
SLOT_POOL
Syntax SLOT_POOL=pool_name
Description
Name of the pool of job slots the queue belongs to for queue-based fairshare. A queue
can only belong to one pool. All queues in the pool must share the same set of hosts.
Valid value
Specify any ASCII string up to 60 characters long. You can use letters, digits, underscores
(_) or dashes (-). You cannot use blank spaces.
Default
Undefined (no job slots reserved)
SLOT_RESERVE
Syntax
SLOT_RESERVE=MAX_RESERVE_TIME[
integer]
Description
Enables processor reservation for the queue and specifies the reservation time. Specify
the keyword MAX_RESERVE_TIME and, in square brackets, the number of
MBD_SLEEP_TIME cycles over which a job can reserve job slots.
MBD_SLEEP_TIME is defined in
lsb.params; the default value is 60 seconds.
If a job has not accumulated enough job slots to start before the reservation expires, it
releases all its reserved job slots so that other jobs can run. Then, the job cannot reserve
slots for one scheduling session, so other jobs have a chance to be dispatched. After one
scheduling session, the job can reserve job slots again for another period specified by
SLOT_RESERVE.
SLOT_RESERVE is overridden by the RESOURCE_RESERVE parameter.
If both RESOURCE_RESERVE and SLOT_RESERVE are defined in the same queue,
job slot reservation and memory reservation are enabled and an error is displayed when
the cluster is reconfigured. SLOT_RESERVE is ignored.
Job slot reservation for parallel jobs is enabled by RESOURCE_RESERVE if the LSF
scheduler plugin module names for both resource reservation and parallel batch jobs
(
schmod_parallel and schmod_reserve ) are configured in the lsb.modules
file: The
schmod_parallel name must come before schmod_reserve in
lsb.modules.