Hello List,
does Qlustar handle hardware threads? SLURM has the triple sockets/cores/threads, so I'd expect to be able to configure this somewhere. However, I couldn't find anything in the docs (or in QluMan).
A.
"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").
AE> SLURM has the triple sockets/cores/threads, so I'd expect to be AE> able to configure this somewhere. However, I couldn't find AE> anything in the docs (or in QluMan).
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
and place it into the slurm.conf header of QluMan.
Best,
Roland
On Fri, Aug 24, 2018 at 03:02:52PM +0200, Roland Fehrenbacher wrote:
"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.
"AE" == Ansgar Esztermann-Kirchner aeszter@mpibpc.mpg.de writes:
AE> On Fri, Aug 24, 2018 at 03:02:52PM +0200, Roland Fehrenbacher AE> wrote: >> >>>>> "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
AE> Sounds like a good workaround. I've employed it, and sinfo looks AE> like I'd expect it to.
Very good.
AE> Thanks a lot & have a nice weekend,
Thanks, same to you.
-
Ansgar Esztermann-Kirchner -
Roland Fehrenbacher