Administering Platform LSF - SAS

About Resource Usage Limits
About Resource Usage Limits
Resource usage limits control how much resource can be consumed by
running jobs. Jobs that use more than the specified amount of a resource are
signalled or have their priority lowered.
Limits can be specified either at the queue level by your LSF administrator
(lsb.queues) or at the job level when you submit a job.
For example, by defining a high-priority short queue, you can allow short jobs
to be scheduled earlier than long jobs. To prevent some users from submitting
long jobs to this short queue, you can set CPU limit for the queue so that no
jobs submitted from the queue can run for longer than that limit.
Limits specified at the queue level are hard limits, while those specified with
job submission are soft limits. See setrlimit(2) man page for concepts of
hard and soft limits.
Resource usage limits and resource allocation limits
Resource usage limits are not the same as resource allocation limits, which
are enforced during job scheduling and before jobs are dispatched. You set
resource allocation limits to restrict the amount of a given resource that must
be available during job scheduling for different classes of jobs to start, and
which resource consumers the limits apply to.
See Chapter 16, “Resource Allocation Limits” for more information.
Summary of resource usage limits
Limit Job syntax (bsub) Queue syntax (lsb.queues) Fomat/Units
Core file size limit -C core_limit CORELIMIT=limit integer KB
CPU time limit -c cpu_limit CPULIMIT=[default]
maximum
[hours:]minutes[/host_name
| /host_model]
Data segment size -D data_limit DATALIMIT=[default] integer KB
limit
maximum
File size limit -F file_limit FILELIMIT=limit integer KB
Memory limit -M mem_limit MEMLIMIT=[default] integer KB
maximum
Process limit -p process_limit PROCESSLIMIT=[defaul integer KB
t] maximum
Run time limit -W run_limit RUNLIMIT=[default]
maximum
[hours:]minutes[/host_name
| /host_model]
Stack segment size -S stack_limit STACKLIMIT=limit integer KB
limit
Virtual memory limit -v swap_limit SWAPLIMIT=limit integer KB
Thread limit -T thread_limit THREADLIMIT=[default
] maximum
integer
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Administering Platform LSF