Dear Slurm Users,
I am experiencing a significant performance discrepancy when running
the same VASP job through the Slurm scheduler compared to running it
directly with mpirun. I am hoping for some insights or advice on how
to resolve this issue.
System Information:
Slurm Version: 21.08.5
OS: U
On Fri, May 24, 2024 at 9:32 PM Hongyi Zhao wrote:
>
> Dear Slurm Users,
>
> I am experiencing a significant performance discrepancy when running
> the same VASP job through the Slurm scheduler compared to running it
> directly with mpirun. I am hoping for some insights or advice on how
> to resol
> b) the number of nodes involved: when using mpirun you might run things
> on more than one node.
This is a single-node cluster with two sockets.
> Regards,
> Hermann
Regards,
Zhao
> On 5/24/24 15:32, Hongyi Zhao via slurm-users wrote:
> > Dear Slurm Users,
> >
>
n the two might be
> > a) the communication channel/interface that is used.
>
> I tried to use `mpirun', `mpiexec', and `srun --mpi pmi2', and they
> all have similar behaviors as described above.
>
> > b) the number of nodes involved: when using mpirun you might run
25da8c8dfb4a99365b54c8#%E5%85%B3%E9%97%AD%E5%A4%84%E7%90%86%E5%99%A8%E8%B6%85%E7%BA%BF%E7%A8%8B
Regards,
Zhao
> >
> > > Another difference between the two might be
> > > a) the communication channel/interface that is used.
> >
> > I tried to use `mpirun', `mpi
On Sat, May 25, 2024 at 10:06 AM Hongyi Zhao wrote:
>
> On Sat, May 25, 2024 at 9:49 AM Hongyi Zhao wrote:
> >
> > On Sat, May 25, 2024 at 7:50 AM Hongyi Zhao wrote:
> > >
> > > On Sat, May 25, 2024 at 12:02 AM Hermann Schwärzler via slurm-users
> > > wrote:
> > > >
> > > > Hi Zhao,
> > > >
> >
On Mon, May 27, 2024 at 2:59 PM Bjørn-Helge Mevik via slurm-users
wrote:
>
> Ole Holm Nielsen via slurm-users writes:
>
> > Whether or not to enable Hyper-Threading (HT) on your compute nodes
> > depends entirely on the properties of applications that you wish to
> > run on the nodes. Some appli
-- Forwarded message -
From: Hermann Schwärzler
Date: Tue, May 28, 2024 at 4:10 PM
Subject: Re: [slurm-users] Re: Performance Discrepancy between Slurm
and Direct mpirun for VASP Jobs.
To: Hongyi Zhao
Hi Zhao,
On 5/28/24 03:08, Hongyi Zhao wrote:
[...]
>
> What's the complete c
