, April 9, 2021 5:45 AM
To: Open MPI Users
Cc: Gilles Gouaillardet ; Raut, S Biplab
Subject: Re: [OMPI users] Stable and performant openMPI version for Ubuntu20.04
?
[CAUTION: External Email]
Are you using gcc provided by Ubuntu 20.04?
if not which compiler (vendor and version) are you using
takes place.
> I also request you to plan for an early 4.1.1rc2 release at least by
June 2021.
>
> With Regards,
> S. Biplab Raut
>
> -Original Message-
> From: Gilles Gouaillardet
> Sent: Thursday, April 1, 2021 8:31 AM
> To: Raut, S Biplab
> Subject:
det
Sent: Thursday, April 1, 2021 8:31 AM
To: Raut, S Biplab
Subject: Re: [OMPI users] Stable and performant openMPI version for Ubuntu20.04
?
[CAUTION: External Email]
I really had no time to investigate this.
A quick test is to apply the patch in the inline comment at
https://nam11.safelinks.pr
aut, S Biplab mailto:biplab.r...@amd.com>>
Subject: Re: [OMPI users] Stable and performant openMPI version for Ubuntu20.04
?
[CAUTION: External Email]
I am seeing some important performance degradation between Open MPI
3.1.1 and the top of the v3.1.x branch
when running on a large num
imilar performance differences between Open MPI 3.1 and 4.1?
When I run only 2 MPI ranks, the performance regression is not significant.
openMPI3.1.1 gives MFLOPS: 11122
openMPI4.1.0 gives MFLOPS: 11041
With Regards,
S. Biplab Raut
From: Gilles Gouaillardet
Sent: Friday, March 12, 2021 7:07 PM
To: R
On Mar 12, 2021, at 1:20 AM, Raut, S Biplab via users
mailto:users@lists.open-mpi.org>> wrote:
Reposting here without the logs – it seems there is a message size limit of
150KB and so could not attach the logs.
(Request the moderator to approve the original mail that has attachment of
. Biplab Raut
From: users On Behalf Of Raut, S Biplab via
users
Sent: Sunday, March 7, 2021 5:37 PM
To: Gilles Gouaillardet
Cc: Raut, S Biplab ; Open MPI Users
Subject: Re: [OMPI users] Stable and performant openMPI version for Ubuntu20.04
?
[CAUTION: External Email]
Dear Gilles
% or more) and not run-to-run variations.
With Regards,
S. Biplab Raut
From: Gilles Gouaillardet
Sent: Sunday, March 7, 2021 4:56 PM
To: Raut, S Biplab
Subject: Re: [OMPI users] Stable and performant openMPI version for Ubuntu20.04
?
[CAUTION: External Email]
Hi,
First you need to make sure your
,
S. Biplab Raut
-Original Message-
From: users On Behalf Of Gilles Gouaillardet
via users
Sent: Friday, March 5, 2021 5:58 AM
To: Open MPI Users
Cc: Gilles Gouaillardet
Subject: Re: [OMPI users] Stable and performant openMPI version for Ubuntu20.04
?
[CAUTION: External Email
red memory
> (vader).
> >
> > With Regards,
> > S. Biplab Raut
> >
> > From: Heinz, Michael William >
> > Sent: Thursday, March 4, 2021 5:17 PM
> > To: Open MPI Users
> > Cc: Raut, S Biplab
> > Subject: Re: [OMPI users] Stable and performa
gt;
> It is a single node execution, so it should be using shared memory (vader).
>
> With Regards,
> S. Biplab Raut
>
> From: Heinz, Michael William
> Sent: Thursday, March 4, 2021 5:17 PM
> To: Open MPI Users
> Cc: Raut, S Biplab
> Subject: Re: [OMPI users] St
gt;
> From: Heinz, Michael William <mailto:michael.william.he...@cornelisnetworks.com>>
> Sent: Thursday, March 4, 2021 5:17 PM
> To: Open MPI Users <mailto:users@lists.open-mpi.org>>
> Cc: Raut, S Biplab mailto:biplab.r...@amd.com>>
> Subject: Re: [OMPI users] Stable and per
: [OMPI users] Stable and performant openMPI version for Ubuntu20.04
?
[CAUTION: External Email]
Excuse me, but would you please ensure that you do not send mail to a mailing
list containing this label:
[AMD Official Use Only - Internal Distribution Only]
Thank you
Ralph
On Mar 4, 2021, at 4
mailto:users@lists.open-mpi.org> >
Cc: Raut, S Biplab mailto:biplab.r...@amd.com> >
Subject: Re: [OMPI users] Stable and performant openMPI version for Ubuntu20.04
?
[CAUTION: External Email]
What interconnect are you using at run time? That is, are you using Ethernet or
InfiniBand or Omni
t;>
Cc: John Hearns mailto:hear...@gmail.com>>
Subject: Re: [OMPI users] Stable and performant openMPI version for Ubuntu20.04
?
[CAUTION: External Email]
How are you installing the OpenMPI versions? Are you using packages which are
distributed by the OS?
It might be worth
gards,
S. Biplab Raut
From: users On Behalf Of John Hearns via
users
Sent: Thursday, March 4, 2021 1:53 PM
To: Open MPI Users
Cc: John Hearns
Subject: Re: [OMPI users] Stable and performant openMPI version for Ubuntu20.04
?
[CAUTION: External Email]
How are you installing the OpenMPI version
lf Of John Hearns via
users
Sent: Thursday, March 4, 2021 1:53 PM
To: Open MPI Users
Cc: John Hearns
Subject: Re: [OMPI users] Stable and performant openMPI version for Ubuntu20.04
?
[CAUTION: External Email]
How are you installing the OpenMPI versions? Are you using packages which are
d
How are you installing the OpenMPI versions? Are you using packages which
are distributed by the OS?
It might be worth looking at using Easybuid or Spack
https://docs.easybuild.io/en/latest/Introduction.html
https://spack.readthedocs.io/en/latest/
On Thu, 4 Mar 2021 at 07:35, Raut, S Biplab via
[AMD Official Use Only - Internal Distribution Only]
Dear Experts,
Until recently, I was using openMPI3.1.1 to run single
node 128 ranks MPI application on Ubuntu18.04 and Ubuntu19.04.
But, now the OS on these machines are upgraded to Ubuntu20.04, and I have been
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