IBM Platform LSF 9.1.3 Fix 481015 Readme File 

Abstract

P102493. This patch enhances the License Scheduler dynamic feature delta to decay or increase licenses smoothly and to correctly calculate the number of free tokens when there is a duration specified in the rusage string for fast dispatch and cluster modes.

Description

Readme documentation for IBM Platform LSF 9.1.3 Fix 481015 including installation-related instructions, prerequisites and co-requisites, and list of fixes.

This fix addresses the following issues:

1) When there is no demand, the dynamic feature delta immediately decays licenses to the adjusted initial value.

To resolve this issue, the new nd_timeout() keyword controls how long License Scheduler waits after the license demand is 0, in minutes, before reducing the token amount to the adjusted initial value. Specify 0 or a positive integer. The default value is 30 minutes.

In the following example, if the license demand is 0, License Scheduler waits 5 minutes for the license demand to remain at 0 before reducing the number of licenses to the adjusted initial value:

FEATURE_DELTA= LanServer(mult dyn(init(5) max(100) dynstep(3 0.7) target(0.90) interval(2) nd_timeout(5)))

 

2) When the dynamic feature delta increases tokens, License Scheduler ensures that the current number of free tokens is less than the step() value before increasing the tokens.

To control this behavior, the new checkFree() keyword controls whether License Scheduler checks that the number of free tokens is less than the step() value before increasing the tokens. Specify 1 to check for free tokens (that is, increase tokens if the number of free tokens is less than the step() value) or 0 to disable the check (that is, License Scheduler increases the number of free tokens by the step() value regardless of the number of free tokens). The default value is 1 (License Scheduler performs the check).

The following example disables the check so that License Scheduler increases the tokens even if the number of tokens is more than the step() value:

FEATURE_DELTA= LanServer(mult dyn(init(5) max(100) dynstep(3 0.7) target(0.90) interval(2) checkFree(0)))

 

3) If the bsub command specified a duration for the fast dispatch or cluster mode features in the rusage string, the dynamic feature delta calculates free tokens incorrectly because fast dispatch and cluster modes do not support durations.

This patch resolves the issue and allows the dynamic feature delta to correctly calculate the free tokens when the duration is specified.

Readme File for: IBM® Platform LSF

Product/Component Release: 9.1.3

Update Name: Fix 481015

Fix ID: LSF-9.1.3-build481015

Publication Date: 9 February 2018

Last Modified Date: 9 February 2018

 

Contents

1. List of Fixes

2. Download Location

3. Product or Components Affected

4. System Requirements

5. Installation and Configuration

6. List of Files

7. Product Notifications

8. Copyright and Trademark Information

 

1. List of Fixes

P102493

 

2. Download Locations

Download Fix 481015 from the following location: http://www.ibm.com/eserver/support/fixes/

 

3. Product or Components Affected

Affected product or components include:

LSF/bld

 

4. System Requirements

linux2.6-glibc2.3-x86_64

 

5. Installation and Configuration

5.1 Before installation

(LSF_TOP=Full path to the top-level installation directory of LSF.) 

1) Log on to the LSF master host as root 

2) Set your environment: 

- For csh or tcsh: % source LSF_TOP/conf/cshrc.lsf 

- For sh, ksh, or bash: $ . LSF_TOP/conf/profile.lsf 

5.2 Installation steps

1) Go to the patch install directory: cd $LSF_ENVDIR/../10.1/install/ 

2) Copy the patch file to the install directory $LSF_ENVDIR/../10.1/install/ 

3) Run patchinstall: ./patchinstall <patch> 

5.3 After installation

1) Log on to the LSF master host as root 

2) Run bladmin reconfig

5.4 Uninstallation

1) Log on to the LSF master host as root 

2) Go to the patch install directory: cd $LSF_ENVDIR/../10.1/install/ 

3) Run ./patchinstall -r <patch> 

4) Run bladmin reconfig

 

6. List of Files

bld

 

7. Product Notifications

To receive information about product solution and patch updates automatically, subscribe to product notifications on the My notifications page ( www.ibm.com/support/mynotifications) on the IBM Support website (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.

 

8. Copyright and Trademark Information

©Copyright IBM Corporation 2018

 

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