I'm not sure why nobody has encountered this issue on the mailing list.
After some fiddling I was finally able to isolated to a performance
regression introduced between 2.0.1 and 2.0.2. While trying to binary
search the exact commit causing the performance regression my colleague
brought this to m
Thanks for sharing your findings.
just to be clear, your application is running at full speed.
only MPI_Wtime() is busted, so timers used internally in your app might
mislead you and suggests performance are worst than what they really are
Cheers,
Gilles
- Original Message -
I'm
Paul Kapinos writes:
> Nathan,
> unfortunately '--mca memory_linux_disable 1' does not help on this
> issue - it does not change the behaviour at all.
> Note that the pathological behaviour is present in Open MPI 2.0.2 as
> well as in /1.10.x, and Intel OmniPath (OPA) network-capable nodes are
>
It looks like there were 3 separate threads on this CP2K issue, but I think we
developers got sidetracked because there was a bunch of talk in the other
threads about PSM, non-IB(verbs) networks, etc.
So: the real issue is an app is experiencing a lot of slowdown when calling
MPI_ALLOC_MEM/MPI_
I couldn't find the docs on mpool_hints, but shouldn't there be a way to
disable registration via MPI_Info rather than patching the source?
Jeff
PS Jeff Squyres: ;-) ;-) ;-)
On Wed, Mar 15, 2017 at 5:03 PM, Jeff Squyres (jsquyres)
wrote:
>
> It looks like there were 3 separate threads on this C
On Mar 15, 2017, at 8:25 PM, Jeff Hammond wrote:
>
> I couldn't find the docs on mpool_hints, but shouldn't there be a way to
> disable registration via MPI_Info rather than patching the source?
Yes; that's what I was thinking, but wanted to get the data point first.
Specifically: if this tes
On Wed, Mar 15, 2017 at 5:44 PM Jeff Squyres (jsquyres)
wrote:
> On Mar 15, 2017, at 8:25 PM, Jeff Hammond wrote:
> >
> > I couldn't find the docs on mpool_hints, but shouldn't there be a way to
> disable registration via MPI_Info rather than patching the source?
>
> Yes; that's what I was think
Thank you, Gilles.
Saliya
On Sun, Mar 12, 2017 at 3:36 AM, Gilles Gouaillardet <
gilles.gouaillar...@gmail.com> wrote:
> PSM is the infinipath driver, so unless you have some infinipath hardware,
> you can safely disable it
>
> Cheers,
>
> Gilles
>
>
> On Sunday, March 12, 2017, Saliya Ekanayake
