[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Condor-users] Multi-core setup for MPI/parallel jobs?



I've got a couple of dual-core nodes which I'd like to set aside for
Condor's parallel universe. While the basics are clear (define 
DedicatedScheduler and add it to STARTD_ATTRS), how would I tell Condor
to use both CPUs? For obvious reasons, it often would make more sense 
to use both of them in the same job, therefore 2 slots wouldn't make 
sense, would they? For now, there's an explicit declaration of

NUM_CPUS = 2
MAX_SLOT_TYPES = 1
SLOT_TYPE_1 = cpus=2, mem=100%, swap=100%, disk=100%
NUM_SLOTS_TYPE_1 = 1
NUM_SLOTS = 1

If a user requests machine_count=20, this will allocate 20 nodes when 
only 10 would be required - keeping the machines cooler but causing 
unnecessary network traffic.

Any suggestions?


Steffen


-- 
Steffen Grunewald * MPI Grav.Phys.(AEI) * Am M�erg 1, D-14476 Potsdam
Cluster Admin * http://pandora.aei.mpg.de/merlin/ * http://www.aei.mpg.de/
* e-mail: steffen.grunewald(*)aei.mpg.de * +49-331-567-{fon:7233,fax:7298}
No Word/PPT mails - http://www.gnu.org/philosophy/no-word-attachments.html