Hi, 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. Is there a way to submit jobs with a somehow flexible number of slots such that only complete nodes are allocated? 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. 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
