Re: [HTCondor-users] Does SLOT<N>_CPU_AFFINITY knob still work?

[Valerio Bellizzomi <valerio@xxxxxxxxxx>]

Hi,
it isn't even told that a NUMA node contains one cpu only.
On some HP mainboards with two Xeon E5345 processors, lscpu shows two
sockets and one NUMA node only.
Thus the cpu affinity must be very specific for each mainboard/cpu
pair.

VB


On Wed, 2023-11-29 at 16:25 +0100, Valerio Bellizzomi wrote:
> I'm going to attempt with two Partitionable Slots at 50% resources
> and
> ASSIGN_CPU_AFFINITY=true with
> 
> request_cpus = <number of cores in a Numa node>
> 
> is this sufficient to bind process to one numa node now that cgroups
> v2
> is available in HTCondor?
> 
> Thanks
> VB
> 
> 
> On Tue, 2023-11-28 at 15:14 +0100, Valerio Bellizzomi wrote:
> > Can we still use this knob to set cpu affinity? and/or are we
> > forced
> > to
> > use cgroups with systemd ?
> > 
> > I am trying to follow Luis's guide but it is not complete.
> > 
> > Luis, if you are reading this list, can I ask you to share your
> > configuration?
> > 
> > Thank you
> > VB
> > 
> > 
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