HP-UX Workload Manager Toolkits User's Guide

HP-UX WLM Duration Management Toolkit and HP-UX WLM Toolkit for Base SAS Software
Chapter 6 101
6HP-UX WLM Duration
Management Toolkit and HP-UX
WLM Toolkit for Base SAS
Software
NOTE The HP-UX WLM Duration Management toolkit (DMTK), including its
wlmdurdc command, and the HP-UX WLM Toolkit for Base SAS
Software (SASTK), will be deprecated in a future release. However, a
new and improved SASTK will be made available and will include a
white paper and example configuration files. Support for the DMTK
wlmdurdc command will be removed in a future release. In the
meantime, for wlmdurdc documentation, see wlmdurdc(1M). HP
recommends using usage-based controllers instead of DMTK.
HP-UX WLM can provide a number of features to help you better use
your HP servers. For example, WLM and its Duration Management
Toolkit (DMTK), can help by reducing the need for overprovisioning CPU
resources—granting jobs only the amount of CPU resources needed to
complete within a certain timeframe. This feature, known as duration
management, is useful in Base SAS environments and many other
environments. Furthermore, even without DMTK, WLM can grant
computing resources upon demand—providing an “express lane”—to
ensure that your most important jobs are given top priority. Express
lanes can be particularly beneficial in a Base SAS environment—where
any user has the ability to launch a job that can, regardless of its
business priority, significantly affect the performance of other jobs.
This chapter explains how to use duration management and express
lanes.
DMTK offers integrators and administrators nonintrusive solutions to
managing jobs through WLM configuration files. For developers, the
toolkit offers a SAS macro to programmatically manage SAS jobs to take
advantage of WLM features.
For more information on WLM, see the HP-UX Workload Manager User’s
Guide or wlm(5).