4 job terminology – HP XC System 3.x Software User Manual

Page 86

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$ lshosts

HOST_NAME type model cpuf ncpus maxmem maxswp server RESOURCES

lsfhost.loc SLINUX6 Opteron8 60.0 8 2007M - Yes (slurm)

$ ssh n15 lshosts

HOST_NAME type model cpuf ncpus maxmem maxswp server RESOURCES

lsfhost.loc SLINUX6 Opteron8 60.0 8 2007M - Yes (slurm)

n15 UNKNOWN UNKNOWN_ 1.0 - - - No ()

The job-level run-time limits enforced by LSF-HPC integrated with SLURM are not supported.

LSF-HPC integrated with SLURM does not support parallel or SLURM-based interactive jobs in PTY
mode (bsub -Is and bsub -Ip). However, after LSF-HPC dispatches a user job on the HP XC
system, you can use the srun or ssh command to access the job resources directly accessible. For
more information, see

“Working Interactively Within an Allocation”

.

LSF-HPC integrated with SLURM does not support user-account mapping and system-account
mapping.

LSF-HPC integrated with SLURM does not support chunk jobs. If a job is submitted to chunk queue,
SLURM lets the job pend.

LSF-HPC integrated with SLURM does not support topology-aware advanced reservation scheduling.

10.4 Job Terminology

The following terms are used to describe jobs submitted to LSF-HPC integrated with SLURM:

Batch job

A job submitted to LSF-HPC or SLURM that runs without any I/O
connection back to the terminal from which the job was submitted. This
job may run immediately, or it may run sometime in the future,
depending on resource availability and batch system scheduling policies.

Batch job submissions typically provide instructions on I/O management,
such as files from which to read input and filenames to collect output.

By default, LSF-HPC jobs are batch jobs. The output is e-mailed to the
user, which requires that e-mail be set up properly. SLURM batch jobs
are submitted with the srun -b command. By default, the output is
written to $CWD/slurm-SLURMjobID.out from the node on which the
batch job was launched.

Use Ctrl-C at any time to terminate the job.

Interactive batch job

A job submitted to LSF-HPC or SLURM that maintains I/O connections
with the terminal from which the job was submitted. The job is also
subject to resource availability and scheduling policies, so it may pause
before starting. After running, the job output displays on the terminal
and the user can provide input if the job allows it.

By default, SLURM jobs are interactive. Interactive LSF-HPC jobs are
submitted with the bsub -I command.

Use Ctrl-C at any time to terminate the job.

Serial job

A job that requests only one slot and does not specify any of the following
constraints:

mem

tmp

mincpus

nodes

Serial jobs are allocated a single CPU on a shared node with minimal
capacities that satisfies other allocation criteria. LSF-HPC always tries to
run multiple serial jobs on the same node, one CPU per job. Parallel jobs
and serial jobs cannot run on the same node.

86

Using LSF-HPC

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