Platform LSF Administration Guide Version 6.2

Chapter 16
Fairshare Scheduling
Administering Platform LSF
283
Queue-level User-based Fairshare
User-based fairshare policies configured at the queue level handle resource contention
among users in the same queue. You can define a different fairshare policy for every
queue, even if they share the same hosts. A user’s priority is calculated separately for each
queue.
To submit jobs to a fairshare queue, users must be allowed to use the queue (USERS in
lsb.queues) and must have a share assignment (FAIRSHARE in lsb.queues).
Even cluster and queue administrators cannot submit jobs to a fairshare queue if they
do not have a share assignment.
Viewing queue-level fairshare information
To find out if a queue is a fairshare queue, run bqueues -l. If you see
“USER_SHARES” in the output, then a fairshare policy is configured for the queue.
Configuring queue-level fairshare
To configure a fairshare queue, define FAIRSHARE in lsb.queues and specify a
share assignment for all users of the queue.
Syntax
FAIRSHARE = USER_SHARES[[
user, number_shares]...]
◆ You must specify at least one user share assignment.
◆ Enclose the list in square brackets, as shown.
◆ Enclose each user share assignment in square brackets, as shown.