IBM Spectrum LSF 10.1 Fix 600432 Readme

Abstract

P104228: Fix to improve scheduling performance with large parallel jobs that request an advanced reservation.

Description

Readme documentation for IBM Spectrum LSF 10.1 Fix 600432 including installation-related instructions, prerequisites and co-requisites.

This fix addresses the following issue:

Certain job patterns involving large parallel jobs that request an advanced reservation might result in excessively long scheduling sessions.

Recommendation: To ensure backfill is not interrupted prematurely, set the job scheduling interval threshold to a larger value. This can be done by configuring the JOB_SCHEDULING_INTERVAL parameter in the lsb.params file and setting a larger max_time value.

For example, the following has a min_time of 1 and a max_time of 120:
JOB_SCHEDULING_INTERVAL = 1 120

Readme file for: IBM® Spectrum LSF
Product/Component Release: 10.1
Update Name: Fix 600432
PMR/APAR: P104228
Fix ID: lsf-10.1-build600432
Publication date:13 May 2021
Last modified date: 13 May 2021

Contents:

1. List of fixes

2. Download location

3. Product notifications

4. Products or components affected

5. System requirements

6. Installation and configuration

7. List of files

8. Copyright and trademark information

1. List of fixes

P104228

2. Download Location

Download Fix 600432 from the following location: http://www.ibm.com/eserver/support/fixes

3. Product Notifications

To receive information about product solution and patch updates automatically, subscribe to product notifications on the My notifications page http://www.ibm.com/support/mynotifications/ on the IBM Support website (http://support.ibm.com). You can edit your subscription settings to choose the types of information you want to get notification about, for example, security bulletins, fixes, troubleshooting, and product enhancements or documentation changes.

4. Products or components affected

LSF/mbschd

5. System requirements

linux3.10-glibc2.17-ppc64le

6. Installation and configuration

6.1 Before installation

Shutdown LSF on all work load manager (WLM) and launch node (LN) hosts.

Back up the LSF configuration from the conf ($LSF_ENVDIR) directory and any scripts or binary files that you added to the LSF_SERVERDIR directory (for example, customized elims, esubs, stage in pre-scripts, stage in post scripts).

Run rpm -qa| grep lsf to list the currently installed rpm files

Use yum erase or rpm -evh to unistall the existing LSF packages.

rpm -ev --allmatches -notriggers 'list of filenames as they appear in step 3'

6.2 Installation steps

Download lsf-10.1.0.11-600432.ppc64le_csm.bin package

Run lsf-10.1.0.11-600432.ppc64le_csm.bin to extract the RPM files. Accept the license agreement when prompted to continue with the file extraction.
lsf-common-10.1.0.11-600432.ppc64le.rpm
lsf-master-10.1.0.11-600432.ppc64le.rpm
lsf-misc-10.1.0.11-600432.ppc64le.rpm
lsf-server-10.1.0.11-600432.ppc64le.rpm
lsf-python2-api-1.0.6-10.1.0.11.ppc64le.rpm
ibm_smpi-jsm-10.03.01.00rtm5-rh7_20191114.ppc64le.rpm

Use rpm -ivh or yum install commands to deploy the common, server, and master RPM packages. The installation is relocatable (--prefix options supported)

On the work load manager
rpm -ivh lsf-common-10.1.0.11-600432.ppc64le.rpm lsf-server-10.1.0.11-600432.ppc64le.rpm lsf-master-10.1.0.11-600432.ppc64le.rpm

On the launch node
rpm -ivh lsf-common-10.1.0.11-600432.ppc64le.rpm lsf-server-10.1.0.11-600432.ppc64le.rpm

Verify that the installation is successful:
rpm -qa | grep lsf
lsf-server-10.1.0.11-600432.ppc64le
lsf-common-10.1.0.11-600432.ppc64le
lsf-master-10.1.0.11-600432.ppc64le

6.3 After installation

Restore previously backed up LSF conf directory and any customized scripts or binaries in LSF_SERVERDIR

(Optional) Under LSF_TOP:
Rename work.rpmsave to work

Using bash: On each WLM and LN, run the following commands as root:
. /opt/ibm/spectrumcomputing/lsf/conf/profile.lsf
or if you have used the --prefix to define your own LSF_TOP
. /conf/profile.lsf

Start up LSF
lsf_daemons start

6.4 Uninstallation

Shut down LSF on all WLM and LN hosts.
lsf_daemons stop

Back up the LSF conf directory and any customized scripts or binaries as stated in previous steps.

Use yum erase or rpm -evh commands to unistall LSF following the same previous steps.

7. List of files

lsf-10.1.0.9-600432.ppc64le_csm.bin

The contents of lsf-10.1.0.11-600432.ppc64le_csm.bin:

lsf-common-10.1.0.11-600432.ppc64le.rpm
lsf-master-10.1.0.11-600432.ppc64le.rpm
lsf-misc-10.1.0.11-600432.ppc64le.rpm
lsf-python2-api-1.0.6-10.1.0.11.ppc64le.rpm
lsf-server-10.1.0.11-600432.ppc64le.rpm
ibm_smpi-jsm-10.03.01.00rtm5-rh7_20191114.ppc64le.rpm

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