Platform LSF Reference Version 6.2

Parameters Section
Platform LSF Reference
380
The directories are always synchronized when data is logged to the files, or when
mbatchd is started on the first LSF master host.
Use this parameter if NFS traffic is too high and you want to reduce network traffic.
Valid Values
1 to INFINIT_INT
INFINIT_INT is defined in
lsf.h
Default
Undefined
See also
See “lsf.conf” under “LSB_LOCALDIR” on page 523.
HIST_HOURS
Syntax
HIST_HOURS=
hours
Description
Used only with fairshare scheduling. Determines a rate of decay for cumulative CPU
time and historical run time.
To calculate dynamic user priority, LSF scales the actual CPU time using a decay factor,
so that 1 hour of recently-used time is equivalent to 0.1 hours after the specified number
of hours has elapsed.
To calculate dynamic user priority with historical run time, LSF scales the accumulated
run time of finished jobs using the same decay factor, so that 1 hour of recently-used
time is equivalent to 0.1 hours after the specified number of hours has elapsed.
When HIST_HOURS=0, CPU time accumulated by running jobs is not decayed.
Default
5
JOB_ACCEPT_INTERVAL
Syntax
JOB_ACCEPT_INTERVAL=
integer
Description
The number you specify is multiplied by the value of lsb.params
MBD_SLEEP_TIME (60 seconds by default). The result of the calculation is the
number of seconds to wait after dispatching a job to a host, before dispatching a second
job to the same host.
If 0 (zero), a host may accept more than one job. By default, there is no limit to the total
number of jobs that can run on a host, so if this parameter is set to 0, a very large number
of jobs might be dispatched to a host all at once. This can overload your system to the
point that it will be unable to create any more processes. It is not recommended to set
this parameter to 0.
JOB_ACCEPT_INTERVAL set at the queue level (
lsb.queues) overrides
JOB_ACCEPT_INTERVAL set at the cluster level (
lsb.params).
Default
1
JOB_ATTA_DIR
Syntax
JOB_ATTA_DIR=
directory
Description
The shared directory in which mbatchd saves the attached data of messages posted
with the
bpost command.