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Administering Platform LSF - SAS

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<strong>LSF</strong> in Multiple Authentication Environments<br />

<strong>LSF</strong> in Multiple Authentication Environments<br />

In some environments, such as a UNIX system or a Windows domain, you can<br />

have one user account that works on all hosts. However, when you build an<br />

<strong>LSF</strong> cluster in a heterogeneous environment, you can have a different user<br />

account on each system, and each system does its own password<br />

authentication.<br />

This means that <strong>LSF</strong> cannot always use the submission account to run a job,<br />

because the job will fail if the execution host cannot validate the password of<br />

the account you used on the submission host.<br />

In an environment of multiple authentication systems, user mapping<br />

determines which account <strong>LSF</strong> uses when it runs your job. User mapping can<br />

be defined all of the following ways:<br />

◆ For clusters containing Windows hosts, <strong>LSF</strong> default user mapping<br />

(<strong>LSF</strong>_USER_DOMAIN in lsf.conf) might be enabled. This should be<br />

configured only once, when you install and set up <strong>LSF</strong>.<br />

◆ User mapping at the user level (lsb.hosts) is configurable by the user.<br />

◆ User mapping at the system level (lsb.users) is configurable by the<br />

administrator.<br />

502<br />

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

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