Platform LSF Reference Version 6.2

lsb.hosts
Platform LSF Reference
363
Hosts that are not included in any host partition are controlled by the FCFS scheduling
policy instead of the fairshare scheduling policy.
Optionally, use the reserved host name
all to configure a single partition that applies
to all hosts in a cluster.
Optionally, use the not operator (
~) to exclude hosts or host groups from the list of
hosts in the host partition.
Examples HOSTS=all ~hostK ~hostM
The partition includes all the hosts in the cluster, except for hostK and hostM.
HOSTS=groupA ~hostL
The partition includes all the hosts in host group groupA except for hostL.
USER_SHARES
Syntax
USER_SHARES=[
user, number_shares]...
Description
Specifies user share assignments
◆ Specify at least one user share assignment.
◆ Enclose each user share assignment in square brackets, as shown.
◆ Separate a list of multiple share assignments with a space between the square
brackets.
◆ user
Specify users who are also configured to use the host partition. You can assign the
shares:
❖ To a single user (specify user_name)
❖ To users in a group, individually (specify group_name@) or collectively (specify
group_name)
❖ To users not included in any other share assignment, individually (specify the
keyword
default) or collectively (specify the keyword others)
By default, when resources are assigned collectively to a group, the group members
compete for the resources according to FCFS scheduling. You can use hierarchical
fairshare to further divide the shares among the group members.
When resources are assigned to members of a group individually, the share
assignment is recursive. Members of the group and of all subgroups always compete
for the resources according to FCFS scheduling, regardless of hierarchical fairshare
policies.
◆ number_shares
Specify a positive integer representing the number of shares of the cluster resources
assigned to the user.
The number of shares assigned to each user is only meaningful when you compare
it to the shares assigned to other users or to the total number of shares. The total
number of shares is just the sum of all the shares assigned in each share assignment.