Platform LSF Reference Version 6.2

lsb.hosts
Platform LSF Reference
365
Automatic Time-based Configuration
Variable configuration is used to automatically change LSF configuration based on time
windows. You define automatic configuration changes in
lsb.hosts by using if-else
constructs and time expressions. After you change the files, reconfigure the cluster with
the
badmin reconfig command.
The expressions are evaluated by LSF every 10 minutes based on
mbatchd start time.
When an expression evaluates true, LSF dynamically changes the configuration based on
the associated configuration statements. Reconfiguration is done in real time without
restarting
mbatchd, providing continuous system availability.
Example
In the following example, the #if, #else, #endif are not interpreted as comments by
LSF but as if-else constructs.
Begin Host
HOST_NAME r15s r1m pg
host1 3/5 3/5 12/20
#if time(5:16:30-1:8:30 20:00-8:30)
host2 3/5 3/5 12/20
#else0host2 2/3 2/3 10/12
#endif
host3 3/5 3/5 12/20
End Host