HP XC System 2.x Software - Manual (Page 34)

• The LSF lshosts command displays machine-specific information for the LSF execution
host node.
$ lshosts
Refer to Section 7.3.2 for more information about using this command and a sample of
its output.
• The LSF lsload command displays load information for the LSF execution host node.
$ lsload
Refer to Section 7.3.3 for more information about using this command and a sample of
its output.
2.3.4 Getting Information About the System’s Partitions
Information about the system’s partitions can be viewed with the SLURM sinfo command.
The sinfo command reports the state of all partitions and nodes managed by SLURM and
provides a wide variety of filtering, sorting, and formatting options. sinfo displays a summary
of available partition and node (not job) information such as partition names, nodes/partition,
and CPUs/node).
$ sinfo
Refer to Section 7.3.5 for more information about using the sinfo command and a sample of
its output.
2.3.5 Launching Jobs
To launch a job on an HP XC system, use the LSF bsub command. The bsub command
submits batch jobs or interactive batch jobs to an LSF queue for execution.
This section provides some brief examples of how to launch some typical serial and parallel
jobs. Refer to Section 7.4 for full information about launching jobs with the
bsub command.
2.3.5.1 Submitting a Serial Job
Submitting serial jobs is discussed in detail in Section 7.4.3. The command format to submit
a serial job is:
bsub [ bsub-options ] [ srun [ srun-options ] ] executable [ executable-options ]
Use the LSF bsub command to submit a job on the LSF-HPC execution host. The SLURM
srun job launch command is only needed if the LSF-HPC JOB_STARTER script is
not configured for the intended queue (but can be used regardless of whether or not the
script is configured). You can use the
bqueues command to confirm whether or not the
JOB_STARTER script exists.The executable parameter is the name of an executable file or
command.
The use of srun is discussed in detail in Chapter 6.
Consider an HP XC configuration where lsfhost.localdomain is the LSF execution
host, and nodes n[1-10] are compute nodes in the LSF partition. All nodes contain two
processors, providing 20 processors for use by LSF jobs. The following example shows one
way to submit a serial job on this system:
Example 2-1: Submitting a Serial Job
$ bsub -I srun hostname
Job <20> is submitted to default queue <normal>.
<<Waiting for dispatch ...>>
<<Starting on lsfhost.localdomain>>
n1
2-8 Using the System