Re: [HTCondor-users] Resource Matching

[Matthew T West <m.t.west@xxxxxxxxxxxx>]

Let me try again, at least regarding CPUs & chiplets.

When requesting multiple CPU cores for a single job, can I specify that 
all the cores come from a single NUMA node or single socket, when the EP 
is set-up to dynamically allocate slots? Maybe that is the default but I 
cannot find any info in the docs.

Cheers,
Matt

Matthew T. West
DevOps & HPC SysAdmin
University of Exeter, Research IT
http://www.exeter.ac.uk/research/researchcomputing/support/researchit
57 Laver Building, North Park Road, Exeter, EX4 4QE, United Kingdom

On 02/04/2024 18:20, Matthew T West via HTCondor-users wrote:
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>
> Afternoon All,
>
> As vendors of x86 chips (arm?) continue to expand the core count on a
> single socket by using chiplets, I am curious if it is possible in job
> submit to request all the cores be on the same chiplet? For multi-core
> (single chip) workloads that need thread communication, performance
> would be better if they need not go over intra-die fabric.
>
> On the complete other end of the size scale, I am curious how HTCondor's
> parallel universe handles jobs that need more machines that can fit on a
> single switch. Is there some way to define "nearest neighbors" that 
> folks who have run
> a dedicated scheduler have used in the past?
>
> Cheers,
> Matt
>
> P.S. - sorry for getting all the HPC blah-blah on the HTC list.
>
> --
> Matthew T. West
> DevOps & HPC SysAdmin
> University of Exeter, Research IT
> 57 Laver Building, North Park Road, Exeter, EX4 4QE, United Kingdom
>
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