Administering Platform LSF - SAS

Chapter 17
Reserving Resources
Using Resource Reservation
Queue-level resource reservation
At the queue level, resource reservation allows you to specify the amount of
resources to reserve for jobs in the queue. It also serves as the upper limits of
resource reservation if a user also specifies it when submitting a job.
Queue-level resource reservation and pending reasons
The use of RES_REQ affects the pending reasons as displayed by bjobs. If
RES_REQ is specified in the queue and the loadSched thresholds are not
specified, then the pending reasons for each individual load index will not be
displayed.
Configuring resource reservation at the queue level
Examples
Queue-level resource reservation can be configured as part of the RES_REQ
parameter. The resource reservation requirement can be configured at the
queue level as part of the queue level resource requirements. Use the resource
usage (rusage) section of the resource requirement string to specify the
amount of resources a job should reserve after it is started.
Begin Queue
.
RES_REQ = select[type==any] rusage[swp=100:mem=40:duration=60]
.
End Queue
This will allow a job to be scheduled on any host that the queue is configured
to use and will reserve 100 MB of swap and 40 MB of memory for a duration
of 60 minutes.
Begin Queue
.
RES_REQ = swap>50 rusage[swp=40:duration=5h:decay=1]
.
End Queue
Job-level resource reservation
To specify resource reservation at the job level, use bsub -R and include the
resource usage section in the resource requirement string.
Administering Platform LSF 271