[GE users] PE: Use Slots from Single Queue/Hostgroup

Reuti reuti at staff.uni-marburg.de
Wed Aug 8 10:37:36 BST 2007


Am 08.08.2007 um 02:12 schrieb Anthony J. Ciani:

> I've recently added some new machines to my cluster, which have a  
> different architecture and performance from the old machines.  I  
> have pre-existing PEs for managing the resources (i.e. lam_24hr,  
> lam_48hr, lam_96hr), and I have two host groups (i.e. @old, and  
> @new).  Initially, I cloned the existing queues and modified their  
> host groups (e.g. 24hr -> 24hr_new).  I hoped that the scheduler  
> would try and place parallel jobs on a single queue (e.g. 24hr at old  
> OR 24hr_new at new), but it doesn't.  The scheduler will take slots  
> from any queues which have the PE in their pe_list.
> Sequence ordering sort of helps, but the scheduler will still  
> overflow into the other queue.
> Is it possible to get the scheduler to place all the tasks of a  
> parallel job on a single queue (one queue or the other, but not  
> both), without creating a new PE, or restricting/specifying the  
> queue on which the job must run?

no, this looks similar to:


You will need one PE & queue per possible combination.

-- Reuti

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