[torquedev] Mixing Torque 2.110 and 2.3.0 on a cluster ?

[Glen Beane]

On Sat, Mar 22, 2008 at 6:25 PM, Chris Samuel <csamuel at vpac.org> wrote:

> Hi folks,
>
> We're looking at upgrading our Opteron cluster to 2.3.0
> as we *really* want the cpusets support so I'm wondering
> if anyone has tried running a mix of 2.1.10 and 2.3.0 on
> a single cluster ?
>
> My main concerns are:
>
> 1) Will the 2.1 and 2.3 mom's talk to each other correctly ?
>
> 2) Can 2.1.10 mom's talk to a 2.3.0 server (and visa versa) ?
>
> 3) We have heaps of mpiexec's, OpenMPI, etc, built against
> 2.1.10, I'm hoping that the fact that it's all now shared libs
> should make it painless, but has anyone actually tested this ? :-)



I would test this on a couple test systems first..  Maybe setup a
reservation on a few nodes and upgrade the moms,  then see if they can still
talk to pbs_server, then try submitting a job to them,  and finally
submitting a job that runs on 2.1 and 2.3 nodes.

The job structure has changed slightly between 2.1 and 2.3.  I need to
verify this wouldn't cause any problems - especially witha  2.3 server and
2.1 moms!
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