[GE users] Requesting Slots for Parallel Jobs Based on Cores/CPU

sumyee sum-yee.lai at hp.com
Mon Aug 17 21:32:35 BST 2009


Hi Rayson,

If I used exclusive scheduling, wouldn't I lose 4 threads on a machine with 2 quad core CPUs?  I want to be able to dispatch 2 parallel jobs to a machine with 2 CPUs, if possible.

Thanks!

Sum Yee

-----Original Message-----
From: rayson [mailto:rayrayson at gmail.com] 
Sent: Monday, August 17, 2009 1:23 PM
To: users at gridengine.sunsource.net
Subject: Re: [GE users] Requesting Slots for Parallel Jobs Based on Cores/CPU

May be you can get the behavior you want by using exclusive
scheduling, which is a new feature in SGE 6.2u3:

http://wikis.sun.com/display/gridengine62u3/Configuring+Exclusive+Scheduling

Rayson



On 8/17/09, sumyee <sum-yee.lai at hp.com> wrote:
> I have a small cluster with various machine types:  2-quad core CPUs, 2-dual
> core CPUs, 1 CPU (1 core), and 1 CPU-dual cores.  Is there a way I can send
> parallel jobs to these machines and have the number of slots used based on
> the number of cores per CPU?  For example, if a parallel job gets sent to a
> quad core, it will use 4 slots.  If it gets sent to a dual core, it will get
> 2 slots.  If it goes on a machine with only 1 core, it will get 1 slot.  I
> want serial jobs to go on these machines and take up only 1 core each.
>
>
>
> Thanks!
>
>
>
> Sum Yee

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