LSF Version 7.3 - Administering Platform LSF

Administering Platform LSF 305
Fairshare Scheduling
❖ In master queue normal: FAIRSHARE_QUEUES=short license
❖ In master queue priority: FAIRSHARE_QUEUES= night owners
You cannot, however, define night, owners, or priority as slaves in the
normal queue; or normal, short and license as slaves in the priority queue;
or
short, license, night, owners as master queues of their own.
◆ Cross-queue fairshare cannot be used with host partition fairshare. It is part of
queue-level fairshare.
Configure
cross-queue
fairshare
1 Decide to which queues in your cluster cross-queue fairshare will apply.
For example, in your cluster you may have the queues
normal, priority,
short, and license and you want cross-queue fairshare to apply only to
normal, license, and short.
2 Define fairshare policies in your master queue.
In the queue you want to be the master, for example
normal, define the
following in
lsb.queues:
◆ FAIRSHARE and specify a share assignment for all users of the queue.
◆ FAIRSHARE_QUEUES and list slave queues to which the defined fairshare
policy will also apply
◆ PRIORITY to indicate the priority of the queue.
Begin Queue
QUEUE_NAME = queue1
PRIORITY = 30
NICE = 20
FAIRSHARE = USER_SHARES[[user1,100] [default,1]]
FAIRSHARE_QUEUES = queue2 queue3
DESCRIPTION = For normal low priority jobs, running only if hosts
are lightly loaded.
End Queue
3 In all the slave queues listed in FAIRSHARE_QUEUES, define all queue values
as desired.
For example:
Begin Queue
QUEUE_NAME = queue2
PRIORITY = 40
NICE = 20
UJOB_LIMIT = 4
PJOB_LIMIT = 2
End Queue
Begin Queue
QUEUE_NAME = queue3
PRIORITY = 50
NICE = 10
PREEMPTION = PREEMPTIVE
QJOB_LIMIT = 10
UJOB_LIMIT = 1
PJOB_LIMIT = 1
End Queue