beautypg.com

4 checking lsf system queues, 5 getting information about the lsf partition, 4 submitting jobs – HP XC System 2.x Software User Manual

Page 93: Section 7.3.4, Section 7.3.5, Section 7.4, Section 7.4)

background image

See the

OUTPUT

section of the

lsload

manpage for further information about the output of

this example. In addition, refer to the Platform Computing Corporation LSF documentation and
the

lsload

manpage for more information about the features of this command.

7.3.4 Checking LSF System Queues

All jobs on the HP XC system that are submitted to LSF-HPC are placed into an LSF job
queue.HP recommends that you check the status and availability of LSF system queues before
launching a job so that you can select the most appropriate queue for your job.

You can easily check the status, limits, and configurations of LSF queues with the

bqueues

command. This command is fully described in Platform Computing Corporation’s LSF
documentation and manpages.

See the

bsub

(1)

manpage for more information on submitting jobs to specific queues.

Refer to the

bqueues

manpage for further information about this command.

The

bparams

command displays a list of the current default queues configured for the system.

See the

bparams

(1)

manpage for more details.

7.3.5 Getting Information About the

lsf

Partition

Information about the SLURM

lsf

compute node partition can be viewed with the SLURM

sinfo

command. A partition is one or more compute nodes that have been grouped together.

A SLURM

lsf

partition is created when the HP XC system is installed. This partition contains

the resources that will be managed by LSF-HPC and available for jobs submitted to LSF-HPC.

The

sinfo

command reports the state of the

lsf

partition and all other partitions on the

system. The

sinfo

command displays a summary of available partition and node information

such as partition names, nodes/partition, and CPUs/node). It has a wide variety of filtering,
sorting, and formatting options.

The following example shows the use of the

sinfo

command to obtain

lsf

partition

information:

$ sinfo -p lsf

PARTITION AVAIL TIMELIMIT NODES

STATE NODELIST

lsf

up

infinite

128

idle n[1-128]

Use the following command to obtain more information on the nodes in the

lsf

partition:

$ sinfo -p lsf -lNe

NODELIST

NODES PARTITION STATE CPUS MEMORY TMP_DISK WEIGHT FEATURES REASON

n[1-128]

128

lsf

idle

2

3456

1

1

(null) none

Refer to the

sinfo

(1)

manpage and Chapter 6 for further information about using the

sinfo

command.

7.4 Submitting Jobs

The

bsub

command submits jobs to the LSF-HPC.

This section discusses how you can use the

bsub

command on the HP XC system with

LSF-HPC to launch a variety of applications. This section focuses on enhancements to the

bsub

command from the LSF-HPC integration with SLURM on the HP XC system; this

section does not discuss standard

bsub

functionality or flexibility. See the Platform LSF

documentation and the

bsub

(1)

manpage for more information on this important command.

The

bsub

command and its options, including the external SLURM scheduler is used to

request a set of resources on which to launch a job. See Section 7.1.2 for an introduction and
Section 7.4.1 for additional information. The arguments to he

bsub

command consist of the

user job and its arguments. The

bsub

options allow you to provide information on the amount

and type of resources needed by the job.

Using LSF

7-9