Le 07/05/2020 à 11:42, John Hearns via users a écrit :
> Patrick, I am sure that you have asked Dell for support on this issue?
No I didn't :-(. I was just accessing these server for a short time to
run a bench and the workaround was enough. I'm not using slurm but a
local scheduler (OAR) so the p
Patrick, I am sure that you have asked Dell for support on this issue?
On Sun, 26 Apr 2020 at 18:09, Patrick Bégou via users <
users@lists.open-mpi.org> wrote:
> I have also this problem on servers I'm benching at DELL's lab with
> OpenMPI-4.0.3. I've tried a new build of OpenMPI with "--with-pm
I know it's not supposed to matter, but have you tried building
both ompi and slurm against same pmix? That is - first build pmix,
than build slurm with-pmix, and than ompi with both slurm and
pmix=external ?
On 23/04/2020 17:00, Prentice Bi
Lost a line…
Also helpful to check
$ srun -N3 which ompi_info
From: users [mailto:users-boun...@lists.open-mpi.org] On Behalf Of Riebs, Andy
via users
Sent: Monday, April 27, 2020 10:59 AM
To: Open MPI Users
Cc: Riebs, Andy
Subject: Re: [OMPI users] Can't start jobs with srun.
Y’kn
Y’know, a quick check on versions and PATHs might be a good idea here. I
suggest something like
$ srun -N3 ompi_info |& grep "MPI repo"
to confirm that all nodes are running the same version of OMPI.
From: users [mailto:users-boun...@lists.open-mpi.org] On Behalf Of Prentice
Bisbal via us
It is entirely possible that the PMI2 support in OMPI v4 is broken - I doubt it
is used or tested very much as pretty much everyone has moved to PMIx. In fact,
we completely dropped PMI-1 and PMI-2 from OMPI v5 for that reason.
I would suggest building Slurm with PMIx v3.1.5
(https://github.com
I have also this problem on servers I'm benching at DELL's lab with
OpenMPI-4.0.3. I've tried a new build of OpenMPI with "--with-pmi2". No
change.
Finally my work around in the slurm script was to launch my code with
mpirun. As mpirun was only finding one slot per nodes I have used
"--oversubscri
Prentice, have you tried something trivial, like "srun -N3 hostname", to rule
out non-OMPI problems?
Andy
-Original Message-
From: users [mailto:users-boun...@lists.open-mpi.org] On Behalf Of Prentice
Bisbal via users
Sent: Friday, April 24, 2020 2:19 PM
To: Ralph Castain ; Open MPI Use
Is Slurm built with PMIx support? Did you tell srun to use it?
> On Apr 23, 2020, at 7:00 AM, Prentice Bisbal via users
> wrote:
>
> I'm using OpenMPI 4.0.3 with Slurm 19.05.5 I'm testing the software with a
> very simple hello, world MPI program that I've used reliably for years. When
> I
I'm using OpenMPI 4.0.3 with Slurm 19.05.5 I'm testing the software
with a very simple hello, world MPI program that I've used reliably for
years. When I submit the job through slurm and use srun to launch the
job, I get these errors:
*** An error occurred in MPI_Init
*** on a NULL communicat
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