Hi, Am 22.08.2012 um 21:39 schrieb Henrichs, Juryk:
> we have a heterogeneous cluster consisting of nodes with 32 and 48 > cpu's. Some of our jobs are best run either on one complete node or > distributed over a number of nodes. In either case it is desired that > the job runs exclusively on each node and uses all available slots. > > The reason for this is that we use mpirun with --mca mpi_paffinity_alone > 1 as this gives the best performance. > > The problem is, that up to now we have to take care on which type of > nodes a job is running and that jobs are not distributed over mixed nodes. You mean only 32 core machine or 48 core machines? > Is there a way to submit jobs with a somehow flexible number of slots > such that only complete nodes are allocated? Sure, you can specify a slot range for the PE request in `qsub`. > I am aware of the $pe_slots allocation rule, but as I understand it, a > job which requests more slots than available on one single node will > never get started. Correct. There is also something like the "allocation_rule 48" to get multiple of 48 slots. -- Reuti > Juryk > > > This e-mail and any attachment thereto may contain confidential information > and/or information protected by intellectual property rights for the > exclusive attention of the intended addressees named above. Any access of > third parties to this e-mail is unauthorised. Any use of this e-mail by > unintended recipients such as total or partial copying, distribution, > disclosure etc. is prohibited and may be unlawful. When addressed to our > clients the content of this e-mail is subject to the General Terms and > Conditions of GL's Group of Companies applicable at the date of this e-mail. > If you have received this e-mail in error, please notify the sender either by > telephone or by e-mail and delete the material from any computer. > GL's Group of Companies does not warrant and/or guarantee that this message > at the moment of receipt is authentic, correct and its communication free of > errors, interruption etc. > FutureShip GmbH, HRB 106781 AG HH, VAT Reg. No. DE263937825 > Geschäftsführer (CEO): Volker Höppner, Henning Kinkhorst, Stefan Deucker > > > _______________________________________________ > users mailing list > users@gridengine.org > https://gridengine.org/mailman/listinfo/users > _______________________________________________ users mailing list users@gridengine.org https://gridengine.org/mailman/listinfo/users
