LSF Version 7.3 - Platform LSF Configuration Reference

By default, the number of running and suspended jobs on a host cannot exceed the number
of job slots. If preemptive scheduling is used, the suspended jobs are not counted as using a
job slot.
On multiprocessor hosts, to fully use the CPU resource, make the number of job slots equal
to or greater than the number of processors.
Default
Unlimited
load_index
Syntax
load_index loadSched[/loadStop]
Specify io, it, ls, mem, pg, r15s, r1m, r15m, swp, tmp, ut, or a non-shared custom external
load index as a column. Specify multiple columns to configure thresholds for multiple load
indices.
Description
Scheduling and suspending thresholds for dynamic load indices supported by LIM, including
external load indices.
Each load index column must contain either the default entry or two numbers separated by a
slash ‘/’, with no white space. The first number is the scheduling threshold for the load index;
the second number is the suspending threshold.
Queue-level scheduling and suspending thresholds are defined in lsb.queues. If both files
specify thresholds for an index, those that apply are the most restrictive ones.
Example
HOST_NAME mem swp hostA 100/10 200/30
This example translates into a loadSched condition of
mem>=100 && swp>=200
and a loadStop condition of
mem < 10 || swp < 30
Default
Not defined
Example of a Host section
Begin Host HOST_NAME MXJ JL/U r1m pg DISPATCH_WINDOW hostA 1 -
0.6/1.6 10/20 (5:19:00-1:8:30 20:00-8:30) SUNSOL 1 - 0.5/2.5 -
23:00-8:00 default 2 1 0.6/1.6 20/40 () End Host
SUNSOL is a host type defined in lsf.shared. This example Host section configures one
host and one host type explicitly and configures default values for all other load-sharing hosts.
HostA runs one batch job at a time. A job will only be started on hostA if the r1m index is
below 0.6 and the pg index is below 10; the running job is stopped if the r1m index goes above
lsb.hosts
Platform LSF Configuration Reference 223