Administering Platform LSF - SAS

Specifying a Minimum and Maximum Number of Processors
Specifying a Minimum and Maximum Number of
Processors
Syntax
Example
When submitting a parallel job, you can also specify a minimum number and
a maximum number of processors.
If you specify a maximum and minimum number of processors, the job will
start as soon as the minimum number of processors is available, but it will use
up to the maximum number of processors, depending on how many
processors are available at the time. Once the job starts running, no more
processors will be allocated to it even though more may be available later on.
Jobs that request fewer processors than the minimum PROCLIMIT defined for
the queue to which the job is submitted, or more processors than the maximum
PROCLIMIT cannot use the queue and are rejected. If the job requests
minimum and maximum processors, the maximum requested cannot be less
than the minimum PROCLIMIT, and the minimum requested cannot be more
than the maximum PROCLIMIT.
bsub -n min_proc[,max_proc]
% bsub -n 4,16 myjob
At most, 16 processors can be allocated to this job. If there are less than 16
processors eligible to run the job, this job can still be started as long as the
number of eligible processors is greater than or equal to 4.
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Administering Platform LSF