Dear Gilles,
I am using GCC (v9.3.0) as provided by Ubuntu 20.04.
As I said only few test cases were in regression with the earlier patch, but
this new patch resolves all of them.
With Regards,
S. Biplab Raut
-Original Message-
From: gil...@rist.or.jp
Sent: Friday,
Dear Gilles,
As per your suggestion, I tried the inline patch as
discussed in https://github.com/open-mpi/ompi/pull/8622#issuecomment-800776864 .
This has fixed the regression completely for the remaining test cases in FFTW
MPI in-built test bench - which was persisting even
Dear Gilles,
Reposting your comments along with my replies in the
mailing-list for everybody to view/react.
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 number of cores.
Same performan
Dear Gilles,
Please check my replies inline.
>>> Can you please post the output of
>>> ompi_info --param btl vader --level 3
>>> with both Open MPI 3.1 and 4.1?
openMPI3.1.1
--
$ ompi_info --param btl vader --level 3
MCA btl: vader (MCA v2.1.0,
. 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
> otherwise vader will default to using CMA. This will provide the best
> possible performance.
>
> -Nathan
>
> On Mar 4, 2021, at 5:55 AM, Raut, S Biplab via users
> mailto:users@lists.open-mpi.org>> wrote:
>
> [AMD Official Use Only - Internal Distribution O
Mn0%3D%7C1000&sdata=MOIgiiQ5J9qIaD7uBjCbPkuAOhioSxLiyDQbOJspGAU%3D&reserved=0).
> You will need to build with —with-xpmem=/path/to/xpmem to use xpmem
> otherwise vader will default to using CMA. This will provide the best
> possible performance.
>
> -Nathan
>
> On M
:55 AM, Raut, S Biplab via users
mailto:users@lists.open-mpi.org>> wrote:
[AMD Official Use Only - Internal Distribution Only]
It is a single node execution, so it should be using shared memory (vader).
With Regards,
S. Biplab Raut
From: Heinz, Michael William
mailto:michael.will
] 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 Omnipath?
Sent from my iPad
On Mar 4, 2021, at 5:05 AM, Raut, S Biplab via users
mailto:users@lists.open-mpi.org>>
d%7C0%7C0%7C637504431443238327%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=2IHJOyMgRxibyqNNOG7sSob%2FNucGcWlkOH47mnTfdA4%3D&reserved=0>
On Thu, 4 Mar 2021 at 07:35, Raut, S Biplab via users
mailto:users@lists.open-mpi.org>> wrote:
[AMD Official Use Only - Internal Distribution Only]
Dear Exp
[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
observin
Thank you Jeff and George for your enlightening comments and inputs !!
I will design my application algorithm appropriately.
With Regards,
S. Biplab Raut
From: George Bosilca
Sent: Thursday, March 26, 2020 8:00 PM
To: Jeff Squyres (jsquyres)
Cc: Raut, S Biplab ; Open MPI User's List
Subject:
(jsquyres)
Sent: Wednesday, March 25, 2020 10:22 PM
To: Open MPI User's List
Cc: George Bosilca ; Raut, S Biplab
Subject: Re: [OMPI users] Regarding eager limit relationship to send message
size
[CAUTION: External Email]
On Mar 25, 2020, at 4:49 AM, Raut, S Biplab via users
change this limit to adapt to the needs
of your application(s).
Hope this answers your question,
George.
On Tue, Mar 24, 2020 at 1:46 AM Raut, S Biplab via users
mailto:users@lists.open-mpi.org>> wrote:
Dear Experts,
I would like to derive/calculate the maximum MPI
this limit to adapt to the needs
of your application(s).
Hope this answers your question,
George.
On Tue, Mar 24, 2020 at 1:46 AM Raut, S Biplab via users
mailto:users@lists.open-mpi.org>> wrote:
Dear Experts,
I would like to derive/calculate the maximum MPI send
m
Dear Experts,
I would like to derive/calculate the maximum MPI send
message size possible given the known details of btl_vader_eager_limit and
number of ranks.
Can anybody explain and confirm on this?
With Regards,
S. Biplab Raut
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