Software gives administrators control over job scheduling.
Press Release Summary:
LoadLeveler® for AIX® 5L v3.3 schedules jobs and provides functions for building, submitting, and processing jobs in dynamic environment. With support for Gang and Backfill scheduling preemption, software offers advance reservation capability to allow users to schedule exclusive use of node resources. It also reduces number of environment variables software has to copy and allows jobs to be preempted by higher-priority jobs.
Original Press Release:
IBM LoadLeveler for AIX 5L, V3.3 Gives Administrators More Control Over Scheduling Process
At a glance
IBM LoadLeveler for AIX 5L schedules applications to IBM pSeries servers, eServer p5 servers, BladeCenter JS20, and Cluster 1600 running AIX 5L for POWER V5.2 or V5.3.
Improves scheduling capabilities, giving administrators more control over their jobs
Reduces the number of environment variables LoadLeveler has to copy, reducing the time needed to prepare jobs
Reduces or eliminates wait time in the queue by allowing specific node resources to be reserved for exclusive use by particular users
Allows jobs to be preempted so a higher priority job step can run
For ordering, contact:
Your IBM representative, an IBM Business Partner, or IBM Americas Call Centers at 800-IBM-CALL (Reference: RE001).
Overview
LoadLeveler® for AIX® 5L, V3.3 schedules jobs and provides functions for building, submitting, and processing jobs quickly and efficiently in a dynamic environment.
Version 3.3 provides the following enhancements:
Job launch enhancements with increased flexibility and processing options
Advance reservation, allowing administrators and authorized users to schedule exclusive use of node resources
Support for preemption under the Backfill scheduler
Ability to stage executables when job steps are checkpointed
Ability to specify a fixed system priority for a job step by administrators
Ability to configure the central manager, providing more control over the scheduling process
Support of bulk data transfer for jobs that use either Internet Protocol or User Space communication mode
Release 3 is the last release that will support Gang preemption. The method used for preemption has been replaced with the new Backfill scheduling preemption capability.
LoadLeveler V3.1 will be withdrawn from marketing on April 29, 2005, and withdrawn from service on April 1, 2006. LoadLeveler V3.3 replaces V3.2; V3.2 is no longer available to order.
Key prerequisites
AIX 5L for POWER(TM) V5.2 or V5.3
Any one of these systems:
IBM pSeries® servers
IBM p5 servers
IBM BladeCenter(TM) servers
IBM Cluster 1600
Planned availability date
April 29, 2005, for all systems except LoadLeveler on IBM eServer® BladeCenter JS20 running AIX V5.3, which is planned to be available August 26, 2005
