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Administering Platform LSF - SAS

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Chapter 32<br />

Interactive Jobs with bsub<br />

Registering utmp File Entries for Interactive Batch<br />

Jobs<br />

Configuration and operation<br />

Limitations<br />

<strong>LSF</strong> administrators can configure the cluster to track user and account<br />

information for interactive batch jobs submitted with bsub -Ip or bsub -Is.<br />

User and account information is registered as entries in the UNIX utmp file,<br />

which holds information for commands such as who. Registering user<br />

information for interactive batch jobs in utmp allows more accurate job<br />

accounting.<br />

To enable utmp file registration, the <strong>LSF</strong> administrator sets the LSB_UTMP<br />

parameter in lsf.conf.<br />

When LSB_UTMP is defined, <strong>LSF</strong> registers the job by adding an entry to the<br />

utmp file on the execution host when the job starts. After the job finishes, <strong>LSF</strong><br />

removes the entry for the job from the utmp file.<br />

◆<br />

◆<br />

◆<br />

Registration of utmp file entries is supported only on SGI IRIX (6.4 and<br />

later).<br />

utmp file registration is not supported in a MultiCluster environment.<br />

Because interactive batch jobs submitted with bsub -I are not associated<br />

with a pseudo-terminal, utmp file registration is not supported for these<br />

jobs.<br />

<strong>Administering</strong> <strong>Platform</strong> <strong>LSF</strong> 413

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