Hi Ivan, For my curiosity, how do you actually submit a job? Do you use Ganga or the DIRAC api directly? Regards, Raja. On 06/07/17 11:32, Daniela Bauer wrote:
You can't -- this is the bit we need to work out within dirac, so that it reads the JDL correctly and then matches the queue.
Which queue is it ?
Regards, Daniela
On 6 July 2017 at 11:28, Dr Ivan D. Reid <ivan.reid@brunel.ac.uk <mailto:ivan.reid@brunel.ac.uk>> wrote:
On Thu, 6 Jul 2017, Daniela Bauer wrote:
But have you got a queue and for which VO, gridpp ?
For gridpp, yes, but how do I specify a queue?
Cheers, Daniela
Thanks,
ivan
On 6 July 2017 at 10:57, Dr Ivan D. Reid <ivan.reid@brunel.ac.uk <mailto:ivan.reid@brunel.ac.uk>> wrote:
On Thu, 6 Jul 2017, Daniela Bauer wrote:
Hi Ivan,
we haven't tested multi-core job submission in our dirac instance yet, but
if you have a use case (and a site that will support it!) we can look into it.
OK, Daniela. I've been testing the application locally, and could have a job script ready later today. It should run at Brunel, as that's where the data are. I've attached the plot of speedup vs cores that I've just obtained -- the single-core time is ~125 minutes. You can see that there's definitely no real advantage in going beyond eight cores. A sysadmin might prefer four...
Regards,
Daniela
Cheers, ivan
On 6 July 2017 at 10:16, Dr Ivan D. Reid <ivan.reid@brunel.ac.uk <mailto:ivan.reid@brunel.ac.uk>> wrote:
On Thu, 6 Jul 2017, Mark Slater wrote:
As regards Ganga, there isn't a specific option for multicore but there is
a 'diracOpts' field in the Dirac backend which you could use. However, I don't know what dirac option you'd need to specify MC so I can't help any more than that I'm afraid!
Cheers, Mark, at least it's a keyword to gwgl on!
On 06/07/2017 08:12, Dr Ivan D. Reid wrote:
Is there a way to tell ganga/dirac that your jobs are multi-core,
so that sites can direct them to appropriate queues, or do you just take pot-luck?
-- Ivan Reid (ivan.reid@[brunel.ac.uk <http://brunel.ac.uk>|cern.ch <http://cern.ch>]) Engineering, Design & Physical Sciences CMS Collaboration, Brunel University London. Room TOWD405 CERN, Room 40-1-B12
-- Ivan Reid (ivan.reid@[brunel.ac.uk <http://brunel.ac.uk>|cern.ch <http://cern.ch>]) Engineering, Design & Physical Sciences CMS Collaboration, Brunel University London. Room TOWD405 CERN, Room 40-1-B12 RG250WD "You Porsche. Me pass!" DoD #484 JKLO#003, 005 WP7# 3000 LC Unit #2368 (tinlc) UKMC#00009 BOTAFOT#16 UKRMMA#7 (Hon) KotPT -- "for stupidity above and beyond the call of duty".
-- Sent from the pit of despair
----------------------------------------------------------- daniela.bauer@imperial.ac.uk <mailto:daniela.bauer@imperial.ac.uk> HEP Group/Physics Dep Imperial College London, SW7 2BW Tel: +44-(0)20-75947810 http://www.hep.ph.ic.ac.uk/~dbauer/ <http://www.hep.ph.ic.ac.uk/%7Edbauer/>