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Administering Platform LSF - SAS

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Static Resources<br />

Static Resources<br />

Static resources are built-in resources that represent host information that does<br />

not change over time, such as the maximum RAM available to user processes<br />

or the number of processors in a machine. Most static resources are determined<br />

by the LIM at start-up time, or when <strong>LSF</strong> detects hardware configuration<br />

changes.<br />

Static resources can be used to select appropriate hosts for particular jobs<br />

based on binary architecture, relative CPU speed, and system configuration.<br />

The resources ncpus, maxmem, maxswp, and maxtmp are not static on UNIX<br />

hosts that support dynamic hardware reconfiguration.<br />

Static resources reported by LIM<br />

CPU factor (cpuf)<br />

Server<br />

Index Measures Units Determined by<br />

type host type string configuration<br />

model host model string configuration<br />

hname host name string configuration<br />

cpuf CPU factor relative configuration<br />

server host can run remote jobs Boolean configuration<br />

rexpri execution priority nice(2) argument configuration<br />

ncpus number of processors processors LIM<br />

ndisks number of local disks disks LIM<br />

maxmem maximum RAM MB LIM<br />

maxswp maximum swap space MB LIM<br />

maxtmp maximum space in /tmp MB LIM<br />

The CPU factor is the speed of the host’s CPU relative to other hosts in the<br />

cluster. If one processor is twice the speed of another, its CPU factor should be<br />

twice as large. The CPU factors are defined by the <strong>LSF</strong> administrator. For<br />

multiprocessor hosts, the CPU factor is the speed of a single processor; <strong>LSF</strong><br />

automatically scales the host CPU load to account for additional processors.<br />

The server static resource is Boolean. It has the following values:<br />

◆ 1 if the host is configured to run jobs from other hosts<br />

◆ 0 if the host is an <strong>LSF</strong> client for submitting jobs to other hosts<br />

148<br />

<strong>Administering</strong> <strong>Platform</strong> <strong>LSF</strong>

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