HP XC System 3.x Software - Manual (Page 53)

Example 5-11 Using the External Scheduler to Submit a Job That Excludes One or More Nodes
$ bsub -n4 -ext "SLURM[nodes=4; exclude=n3]" -I srun hostname
Job <72> is submitted to default queue <normal>.
<<Waiting for dispatch ...>>
<<Starting on lsfhost.localdomain>>
n1
n2
n4
n5
This example runs the job exactly the same as in Example 5-10 “Using the External Scheduler to Submit
a Job to Run One Task per Node” , but additionally requests that node n3 is not to be used to run the job.
Note that this command could have been written to exclude additional nodes.
Example 5-12 launches the hostname command once on nodes n1 through n10 (n[1-10]):
Example 5-12 Using the External Scheduler to Launch a Command in Parallel on Ten Nodes
$ bsub -n 10 -ext "SLURM[nodelist=n[1-10]]" srun hostname
Example 5-13 launches the hostname command on 10 cores on nodes with a dualcore SLURM feature
assigned to them:
Example 5-13 Using the External Scheduler to Constrain Launching to Nodes with a Given Feature
$ bsub -n 10 -ext "SLURM[constraint=dualcore]" -I srun hostname
You can use the bqueues command to determine the SLURM scheduler options that apply to jobs submitted
to a specific LSF-HPC queue, for example:
$ bqueues -l dualcore | grep SLURM
MANDATORY_EXTSCHED: SLURM[constraint=dualcore]
5.4 Submitting a Batch Job or Job Script
Use the following bsub command format to submit a batch job or job script:
bsub -n num-procs [bsub-options] script-name
The -n num-procs parameter, which is required for parallel jobs, specifies the number of cores the job
requests.
The script-name argument is the name of the batch job or script. The script can contain one or more
srun
or mpirun commands.
The script will execute once on the first allocated node, and the srun or mpirun commands within the
script will be run on the allocated compute nodes.
In Example 5-14 , a simple script named myscript.sh, which contains two srun commands, is displayed
then submitted.
5.4 Submitting a Batch Job or Job Script 53