LSF Version 7.3 - Platform LSF Configuration Reference

MBD_EGO_TIME2LIVE
Syntax
MBD_EGO_TIME2LIVE=minutes
Description
For EGO-enabled SLA scheduling, specifies how long EGO should keep information about
host allocations in case mbatchd restarts,
Default
1440 minutes (24 hours)
MBD_QUERY_CPUS
Syntax
MBD_QUERY_CPUS=cpu_list
cpu_list defines the list of master host CPUS on which the mbatchd child query processes can
run. Format the list as a white-space delimited list of CPU numbers.
For example, if you specify
MBD_QUERY_CPUS=1 2 3
the mbatchd child query processes will run only on CPU numbers 1, 2, and 3 on the master
host.
Description
This parameter allows you to specify the master host CPUs on which mbatchd child query
processes can run (hard CPU affinity). This improves mbatchd scheduling and dispatch
performance by binding query processes to specific CPUs so that higher priority mbatchd
processes can run more efficiently.
When you define this parameter, LSF runs mbatchd child query processes only on the specified
CPUs. The operating system can assign other processes to run on the same CPU; however, if
utilization of the bound CPU is lower than utilization of the unbound CPUs.
Important
1.
You can specify CPU affinity only for master hosts that use one of the following operating
systems:
•
Linux 2.6 or higher
•
Solaris 8 or higher
2.
If failover to a master host candidate occurs, LSF maintains the hard CPU affinity, provided
that the master host candidate has the same CPU configuration as the original master host.
If the configuration differs, LSF ignores the CPU list and reverts to default behavior.
Related parameters
To improve scheduling and dispatch performance of all LSF daemons, you should use
MBD_QUERY_CPUS together with EGO_DAEMONS_CPUS (in ego.conf), which
controls LIM CPU allocation, and LSF_DAEMONS_CPUS, which binds mbatchd and
lsb.params
Platform LSF Configuration Reference 265