LSF Version 7.3 - Administering Platform LSF

Administering Platform LSF 93
Working with Hosts
Host Groups
You can define a host group within LSF or use an external executable to retrieve
host group members.
Use
bhosts to view a list of existing hosts. Use bmgroup to view host group
membership.
Where to use host groups
LSF host groups can be used in defining the following parameters in LSF
configuration files:
◆ HOSTS in lsb.queues for authorized hosts for the queue
◆ HOSTS in lsb.hosts in the HostPartition section to list host groups that are
members of the host partition
Configure host groups
1 Log in as the LSF administrator to any host in the cluster.
2 Open
lsb.hosts.
3 Add the
HostGroup section if it does not exist.
Begin HostGroup
GROUP_NAME GROUP_MEMBER
groupA (all)
groupB (groupA ~hostA ~hostB)
groupC (hostX hostY hostZ)
groupD (groupC ~hostX)
groupE (all ~groupC ~hostB)
groupF (hostF groupC hostK)
desk_tops (hostD hostE hostF hostG)
Big_servers (!)
End HostGroup
4 Enter a group name under the GROUP_NAME column.
External host groups must be defined in the
egroup executable.
5 Specify hosts in the GROUP_MEMBER column.
(Optional) To tell LSF that the group members should be retrieved using
egroup, put an exclamation mark (!) in the GROUP_MEMBER column.
6 Save your changes.
7 Run
badmin ckconfig to check the group definition. If any errors are
reported, fix the problem and check the configuration again.
8 Do one of the following:
a Run
badmin reconfig if you do not want the new group to be recognized
by jobs that were submitted before you reconfigured.