Platform LSF Reference Version 6.2

lsf.conf
Platform LSF Reference
529
Example LSB_NQS_PORT=607
Default
Undefined
LSB_PSET_BIND_DEFAULT
Syntax
LSB_PSET_BIND_DEFAULT=y
| Y
Description
If set, Platform LSF HPC binds a job that is not explicitly associated with an HP-UX
pset to the default pset 0. If LSB_PSET_BIND_DEFAULT is not set, LSF HPC must
still attach the job to a pset, and so binds the job to the same pset used by the LSF HPC
daemons.
Use LSB_PSET_BIND_DEFAULT to improve LSF daemon performance by
automatically unbinding a job with no pset options from the pset used by the LSF
daemons, and binding it to the default pset.
Default
Undefined
LSB_QUERY_PORT
Syntax
LSB_QUERY_PORT=
port_number
Description
Optional. Applies only to UNIX platforms that support thread programming.
This parameter is recommended for busy clusters with many jobs and frequent query
requests to increase
mbatchd performance when you use the bjobs command.
This may indirectly increase overall
mbatchd performance.
The
port_number is the TCP/IP port number to be used by mbatchd to only service
query requests from the LSF system.
mbatchd checks the query port during
initialization.
If LSB_QUERY_PORT is not defined:
◆ mbatchd uses the port specified by LSB_MBD_PORT in lsf.conf, or, if
LSB_MBD_PORT is not defined, looks into the system services database for port
numbers to communicate with other hosts in the cluster.
◆ For each query request it receives, mbatchd forks one child mbatchd to service
the request. Each child
mbatchd processes one request and then exits.
If LSB_QUERY_PORT is defined:
mbatchd prepares this port for connection.The default behavior of mbatchd changes,
a child
mbatchd is forked, and the child mbatchd creates threads to process requests.
mbatchd responds to requests by forking one child mbatchd. As soon as mbatchd
has forked a child
mbatchd, the child mbatchd takes over and listens on the port to
process more query requests. For each request, the child
mbatchd creates a thread to
process it.
The interval used by
mbatchd for forking new child mbatchds is specified by the
parameter MBD_REFRESH_TIME in
lsb.params.
The child
mbatchd continues to listen to the port number specified by
LSB_QUERY_PORT and creates threads to service requests until the job changes
status, a new job is submitted, or the time specified in MBD_REFRESH_TIME in