[Qlustar-General] Re: HW Threads/Hyperthreading

On Fri, Aug 24, 2018 at 03:02:52PM +0200, Roland Fehrenbacher wrote:

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"AE" == Ansgar Esztermann-Kirchner aeszter@mpibpc.mpg.de writes:

Hi again,

AE> Hello List, does Qlustar handle hardware threads?

there is the option for turning them on or off (Generic property "Hyper Threading").

For slurm, this is currently not supported from within QluMan, but it's on our issue list for a while. We hope to add support for this in time for the upcoming 10.1 release. If all nodes need HT you could use a line

NodeName=DEFAULT State=UNKNOWN ThreadsPerCore=2

Sounds like a good workaround. I've employed it, and sinfo looks like I'd expect it to.

Thanks a lot & have a nice weekend,

A.