Re: [Condor-users] Restrict Condor to don't use X cores in a multicore node.

[Lukas Slebodnik <slebodnik@xxxxxxxx>]

Another approch is set variable NUM_CPUS, it can be used to lie to the
condor_startd daemon about how many CPUs a machine has. 

After setting this variable Condor must be restarted. Reconfiguration using 
condor_reconfig will not be enough. 

http://www.cs.wisc.edu/condor/manual/v7.4/3_3Configuration.html#16457

NUM_CPUS = 6

Regards,
Lukas

On Tue, Jun 28, 2011 at 11:10:05AM -0400, Ian Chesal wrote:
> 
> On Tuesday, June 28, 2011 at 11:00 AM, Edier Zapata wrote:
> 
> > Good morning,
> > Is there a way to avoid the use of X cores by Condor?
> > Example:
> >  I have a 8 cores node, but I want Condor to use only the cores 3 to 8 and have cores 1 and 2 free of Condor's processing.
> > Is there a way to do this?
> Add:
> 
> NUM_SLOTS = 6
> 
> to the condor_config.local file for the machine and it will only advertise 6 slots instead of 8. That's the quick way to do it. If you want 1/8th of the memory per slot instead of 1/6th you need to define a new slot type:
> 
> SLOT_TYPE_1 = 1/8
> NUM_SLOTS_TYPE_1 = 6
> NUM_SLOTS = 6
> 
> I think you need the NUM_SLOTS in there still to keep Condor from using the 2 additional CPUs you didn't use with TYPE_1 -- play around with that one. It's been a while since I divided things any way other than evenly.
> 
> For details see: http://www.cs.wisc.edu/condor/manual/v7.4/3_13Setting_Up.html#sec:SMP-Divide
> 
> Regards,
> - Ian
> 
> ---
> Ian Chesal
> 
> Cycle Computing, LLC
> Leader in Open Compute Solutions for Clouds, Servers, and Desktops
> Enterprise Condor Support and Management Tools
> 
> http://www.cyclecomputing.com
> http://www.cyclecloud.com
> http://twitter.com/cyclecomputing
> 
> > 
> > Thanks.
> > -- 
> > Edier Alberto Zapata Hernández
> > Ingeniero de Sistemas
> > Universidad de Valle
> > _______________________________________________
> > Condor-users mailing list
> > To unsubscribe, send a message to condor-users-request@xxxxxxxxxxx (mailto:condor-users-request@xxxxxxxxxxx) with a
> > subject: Unsubscribe
> > You can also unsubscribe by visiting
> > https://lists.cs.wisc.edu/mailman/listinfo/condor-users
> > 
> > The archives can be found at:
> > https://lists.cs.wisc.edu/archive/condor-users/
> 

> _______________________________________________
> Condor-users mailing list
> To unsubscribe, send a message to condor-users-request@xxxxxxxxxxx with a
> subject: Unsubscribe
> You can also unsubscribe by visiting
> https://lists.cs.wisc.edu/mailman/listinfo/condor-users
> 
> The archives can be found at:
> https://lists.cs.wisc.edu/archive/condor-users/