LSF Version 7.3 - Administering Platform LSF

Administering Platform LSF 669
Tuning the Cluster
Set a query-dedicated port for mbatchd
To change the default mbatchd behavior so that mbatchd forks a child mbatchd that
can create threads, specify a port number with LSB_QUERY_PORT in
lsf.conf.
TIP: This configuration only works on UNIX platforms that support thread programming.
1 Log on to the host as the primary LSF administrator.
2 Edit
lsf.conf.
3 Add the LSB_QUERY_PORT parameter and specify a port number that will be
dedicated to receiving requests from hosts.
4 Save the
lsf.conf file.
5 Reconfigure the cluster:
badmin mbdrestart
Specify an expiry time for child mbatchds (optional)
Use MBD_REFRESH_TIME in lsb.params to define how often mbatchd forks a
new child
mbatchd.
1 Log on to the host as the primary LSF administrator.
2 Edit
lsb.params.
3 Add the MBD_REFRESH_TIME parameter and specify a time interval in
seconds to fork a child
mbatchd.
The default value for this parameter is 5 seconds. Valid values are 0 to 300
seconds.
4 Save the
lsb.params file.
5 Reconfigure the cluster as follows:
badmin reconfig
Specify hard CPU affinity
You can 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.