Il 06/11/20 13:43, Valerio Bellizzomi ha scritto:
> Usually hyperthreading will halve the memory-bandwidth available to one
> thread running in one core, the other half being used by the second
> thread.
True. That's one of the "many factors" to consider.
We tested with MPI jobs that are mostly CP
On Fri, 2020-11-06 at 13:00 +0100, Diego Zuccato wrote:
> Il 04/11/20 19:12, Brian Andrus ha scritto:
>
> > One thing you will start finding in HPC is that, by it's goal,
> > hyperthreading is usually a poor fit.
> Depends on many factors, but our tests confirm it can do much good!
>
> > If you a
Il 04/11/20 19:12, Brian Andrus ha scritto:
> One thing you will start finding in HPC is that, by it's goal,
> hyperthreading is usually a poor fit.
Depends on many factors, but our tests confirm it can do much good!
> If you are properly utilizing your cores, your jobs will actually be
> slowed
Le mercredi 04 novembre 2020 à 21:41 +, Sebastian T Smith a écrit :
> Hi,
Hi,
> We have Hyper-threading/SMT enabled on our cluster. It's challenging
> to fully utilize threads, as Brian suggests. We have a few workloads
> that benefit from it being enabled
Our cluster services tasks in the
4, 2020 10:12 AM
To: slurm-users@lists.schedmd.com
Subject: Re: [slurm-users] Using hyperthreaded processors
JC,
One thing you will start finding in HPC is that, by it's goal, hyperthreading
is usually a poor fit.
If you are properly utilizing your cores, your jobs will actually be slowed b
JC,
One thing you will start finding in HPC is that, by it's goal,
hyperthreading is usually a poor fit.
If you are properly utilizing your cores, your jobs will actually be
slowed by using hyperthreading. They are not 'extra' cores, but a
method of swapping a core to a different workload d
Hi,
I would like to make good use of hyperthreaded processors and I already
skimmed through a quantity of posts and documentation.
It is pretty clear that Slurm likes to allocate processing units up to
the core level, and to be able to allocate threads one has to either :
- not declare Sockets/Co
