Platform LSF Administration Guide Version 6.2

Using Resource Reservation
Administering Platform LSF
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Configuring per-resource reservation
To enable greater flexibility for reserving numeric resources are reserved by jobs,
configure the ReservationUsage section in
lsb.resources to reserve resources like
license tokes per resource as PER_JOB, PER_SLOT, or PER_HOST. For example:
Begin ReservationUsage
RESOURCE METHOD
licenseX PER_JOB
licenseY PER_HOST
licenseZ PER_SLOT
End ReservationUsage
Only user-defined numeric resources can be reserved. Builtin resources like mem, cpu,
swp, etc. cannot be configured in the ReservationUsage section.
The cluster-wide RESOURCE_RESERVE_PER_SLOT parameter in
lsb.params is
obsolete. Configuration in
lsb.resources overrides
RESOURCE_RESERVE_PER_SLOT if it also exists for the same resource.
RESOURCE_RESERVE_PER_SLOT parameter still controls resources not
configured in
lsb.resources. Resources not reserved in lsb.resources are
reserved per job.
PER_HOST reservation means that for the parallel job, LSF reserves one instance of a
for each host. For example, some application licenses are charged only once no matter
how many applications are running provided those applications are running on the same
host under the same user.
Assumptions and
limitations
◆ Per-resource configuration defines resource usage for individual resources, but it
does not change any existing resource limit behavior (PER_JOB, PER_SLOT).
◆ In a MultiCluster environment, you should configure resource usage in the
scheduling cluster (submission cluster in lease model or receiving cluster in job
forward model).