Re: [Condor-users] Looking for suggestions for inhomogeneous pool

[Steffen Grunewald <Steffen.Grunewald@xxxxxxxxxx>]

On Thu, Nov 24, 2011 at 10:48:33AM +0100, Steffen Grunewald wrote:
> But I always get confused by the Target/My prefixes, and again this time I
> suspect I got it wrong - parallel universe jobs, with a
> 
> NEGOTIATOR_PRE_JOB_RANK=1000000000 + 1000000000 * (TARGET.JobUniverse == 11) * TotalCpus - 1000 * Memory

Replacing the "==" with a "=?=" and a series of reconfigs and restarts somehow
fixed the issue that "low end" machines were selected.
Now, a different problem shows up.

1. Not all output=out.$(NODE) files get written (2 of 8 missing)
2. Each multi-core machine (single dynamic slot) gets only one MPI node

This is Condor 7.6.0, but the release notes don't promise that 7.6.4 would
behave differently. What's a feasible way to schedule up to TotalCpus MPI
nodes, without dropping the dynamic provisioning of slots?

https://condor-wiki.cs.wisc.edu/index.cgi/wiki?p=HowToPackParallelJobs
unfortunately doesn't tell anything about the slot setup...

Cheers,
 Steffen

-- 
Steffen Grunewald * MPI Grav.Phys.(AEI) * Am Mühlenberg 1, D-14476 Potsdam
Cluster Admin * --------------------------------- * http://www.aei.mpg.de/
* e-mail: steffen.grunewald(*)aei.mpg.de * +49-331-567-{fon:7274,fax:7298}