Re: [HTCondor-users] Limit no of cores to be used by Condor

[Todd Tannenbaum <tannenba@xxxxxxxxxxx>]

On 4/17/2023 11:52 AM, Greg Thain via HTCondor-users wrote:

> On
>       4/17/23 11:30, gagan tiwari wrote:
>       
> > Hi Guys,
> >         
> >                             I want to reserve core 0,1 for kernel jobs
> >         on all of our execute nodes.
> >         
> >         So, please let me know how to exclude those cores from being
> >         used by Condor jobs.
> >         
> >       
>       
>       
>       Probably the best way is to not reserve specific cores for the
>       system or for HTCondor, but just tell HTCondor to use two fewer
>       cores than it detects on the system, by setting NUM_CPUS to two
>       fewer than what the execute point has.
>       
>     
    
    So on all your execute points (nodes), you could have the following
    in an HTCondor config to achieve what Greg suggests above:
    
       NUM_CPUS = $(DETECTED_CPUS) - 2
    
    regards,
    Todd