Re: [HTCondor-users] cpu affinity

[Anthony Tiradani <tiradani@xxxxxxxx>]

Hi Stefan,

I encountered the same thing when we switched to partitionable slots.  I was
advised by the HTCondor team to use ASSIGN_CPU_AFFINITY instead.  I can confirm
that this does work as expected, at least on Linux.

Thanks,

Anthony Tiradani

On 03/31/2015 10:10 PM, stefan harjes wrote:
> Hi,
> 
> I run lots of vanilla jobs, where I request 4 cpus. When the four cpus are
> claimed my process can only use them when the ENFORCE_CPU_AFFINITY flag is set
> to False. If it is set to True, my jobs only use one cpu even though 4 cpus are
> claimed.
> 
> From my understanding cpu affinity would mean that the process can not claim
> more cpu resources than claimed, but in my case the process is always restricted
> to one cpu. I have observed this on linux and windows with version 8.25 through
> 8.27.
> 
> Any hints?
> Thanks
> Stefan
> 
> 
> 
> 
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