Platform LSF Administration Guide Version 6.2

Welcome

Administering Platform LSF

Server host compatibility Platform LSF

To use new features introduced in Platform LSF Version 6.2, you must upgrade all hosts

in your cluster to 6.2.

LSF 6.x and 5.x servers are compatible with Version 6.2 master hosts. All LSF 6.x and

5.x features are supported by 6.2 master hosts.

Cross-product compatibility

See “”Platform LSF Family of Products Compatibility” at

www.platform.com/Support/Compatibility.Upgrade.htm for more

information.

New 64-bit Linux host types

The pre-6.2 LINUX64 host type is ambiguous. LSF reports the same LINUX64 host type

for hosts that are not binary compatible (for example, AMD64 and Intel IA-64 Linux

hosts). Jobs requesting the

LINUX64 host type can get dispatched to hosts where the

job cannot run.

The

LINUX64 host type has been replaced with two new host types to ensure jobs are

dispatched to the correct host type:

◆

X86_64 for AMD64 and EM64T Linux hosts

◆

IA64 for Intel IA-64 Linux hosts

Issue

◆

After upgrading the cluster, existing jobs that require the obsolete LINUX64 host

type cannot run.

Solution: Wait for all jobs to finish before upgrading, or use

bmod to change the

host type from

LINUX64 to one of the new host types to allow jobs to run on the

hosts of the correct type.

Issue

◆

In LSF MultiCluster, jobs submitted from an LSF 6.1 cluster requiring hosts of type

LINUX64 do not run on an LSF 6.2 cluster because no hosts of that type exist in

the execution cluster.

Solution: On the submission cluster:

Manually add the new X86_64 and IA64 host types to lsf.shared.

Submit the jobs again, or use bmod to change the host type from LINUX64 to

one of the new host types to allow jobs to run on the hosts of the correct type.