Platform LSF Administration Guide Version 6.2

Welcome
Administering Platform LSF
41
New configuration parameters and environment variables
The following new parameters and environment variables have been added for LSF
Version 6.2:
lsb.hosts
◆ Condensed host groups
To define condensed host groups, add a CONDENSE column to the HostGroup
section. Under this column, enter Y to define a condensed host group or N to
define an uncondensed host group, as shown in the following:
Begin HostGroup
GROUP_NAME CONDENSE GROUP_MEMBER
groupA Y (hostA hostB hostD)
groupB N (hostC hostE)
End HostGroup
◆ Wildcards and special characters to define host names
You can use special characters when defining host group members under the
GROUP_MEMBER column to specify hosts. These are useful to define several
hosts in a single entry, such as for a range of hosts, or for all host names with a
certain text string.
If a host matches more than one host group, that host is a member of all groups. If
any host group is a condensed host group, the status and other details of the hosts
are counted towards all of the matching host groups.
When defining host group members, you can use string literals and the following
special characters:
❖ Use a tilde (~) to exclude specified hosts or host groups from the list. The
following example matches all hosts in the cluster except for
hostA, hostB,
and all members of the
groupA host group:
... (all ~hostA ~hostB ~groupA)
The tilde can be used in conjunction with the other special characters below.
❖ Use an asterisk (*) as a wildcard character to represent any number of
characters. The following example matches all hosts beginning with the text
string “
hostC” (such as hostCa, hostC1, or hostCZ1):
... (hostC*)
❖ Use square brackets with a hyphen ([integer1 - integer2]) to define a range of
non-negative integers at the end of a host name. The first integer must be less
than the second integer. The following example matches all hosts from
hostD51 to hostD100:
... (hostD[51-100])
❖ Use square brackets with commas ([integer1, integer2 ...]) to define individual
non-negative integers at the end of a host name. The following example
matches
hostD101, hostD123, and hostD321:
... (hostD[101,123,321])
❖ Use square brackets with commas and hyphens (such as [integer1 - integer2,
integer3
, integer4 - integer5]) to define different ranges of non-negative
integers at the end of a host name. The following example matches all hosts