HP XC System 3.x Software User Manual

Page 116

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A.4 Launching a Parallel Interactive Shell Through LSF-HPC

This section provides an example that shows how to launch a parallel interactive shell through LSF-HPC.
The bsub -Is command is used to launch an interactive shell through LSF-HPC. This example steps
through a series of commands that illustrate what occurs when you launch an interactive shell.

Examine the LSF execution host information:

$ bhosts
HOST_NAME STATUS JL/U MAX NJOBS RUN SSUSP USUSP RSV
lsfhost.localdomain ok - 12 0 0 0 0 0

Examine the partition information:

$ sinfo
PARTITION AVAIL TIMELIMIT NODES STATE NODELIST
lsf up infinite 6 idle n[5-10]

Examine the local host information:

$ hostname
n2

Examine the job information:

$ bjobs
No unfinished job found

Run the LSF bsub -Is command to launch the interactive shell:

$ bsub -Is -n4 -ext "SLURM[nodes=4]" /bin/bash
Job <124> is submitted to default queue <normal>.
<<Waiting for dispatch ...>>
<<Starting on lsfhost.localdomain>>

Note the output when hostname is again issued:

$ hostname
n16

Note the output when srun hostname is issued:

$ srun hostname
n5
n7
n6
n8

Note the output from the bjobs command:

$ bjobs
JOBID USER STAT QUEUE FROM_HOST EXEC_HOST JOB_NAME SUBMIT_TIME
124 lsfad RUN normal n2 4*lsfhost.loc /bin/bash date and time

Examine the running job's information:

$ bhist -l 124
Job <124>, User <lsfadmin>, Project <default>,
Interactive pseudo-terminal shell mode,
Extsched <SLURM[nodes=4]>, Command </bin/bash>

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Examples

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