Hello Dave and others,
we jump in the discussion as CP2K developers.
We would like to ask you which version of CP2K you are using in your tests
and if you can share with us your input file and output log.
Some clarifications on the way we use MPI allocate/free:
1) only buffers used for MPI communi
Hi,
On 03/16/17 10:35, Alfio Lazzaro wrote:
We would like to ask you which version of CP2K you are using in your tests
Release 4.1
and
if you can share with us your input file and output log.
The question goes to Mr Mathias Schumacher, on CC:
Best
Paul Kapinos
(Our internal ticketing sys
Hi,
OpenMPI 2.0.2 built with cuda support brings up lots of warnings like
NVIDIA: no NVIDIA devices found
when running on HW without Nvidia devices. Is there a way to suppress
these warnings? It would be quite a hassle to maintain different OpenMPI
builds on clusters with just some GPU machines.
Hi Jeff,
One of my earlier replies includes the backtraces of cp2k.popt process and the
problem points to MPI_ALLOC_MEM/MPI_FREE_MEM.
https://mail-archive.com/users@lists.open-mpi.org/msg30587.html
If that part of the code is commented out, is there another way for openmpi to
find that backt
On Mar 16, 2017, at 10:37 AM, Jingchao Zhang wrote:
>
> One of my earlier replies includes the backtraces of cp2k.popt process and
> the problem points to MPI_ALLOC_MEM/MPI_FREE_MEM.
> https://mail-archive.com/users@lists.open-mpi.org/msg30587.html
Yep -- saw it. That -- paired with the profil
I meant "another way to find a backtrace with MPI_ALLOC_MEM/MPI_FREE_MEM being
ancestors of a write() system call on /dev/infiniband/verbs, i.e., doing RDMA
over IB."
I read your opened issue #3183 and I think we are on the right track. Yay~
Cheers,
Jingchao
___
Hi Roland,
I can't find this message in the Open MPI source code. Could it be hwloc
? Some other library you are using ?
Sylvain
On 03/16/2017 04:23 AM, Roland Fehrenbacher wrote:
Hi,
OpenMPI 2.0.2 built with cuda support brings up lots of warnings like
NVIDIA: no NVIDIA devices found
whe
Jeff, I confirm: your patch did it.
(tried on 1.10.6 - do not even need to rebuild the cp2k.popt , just load another
Open MPI version compiled with Jeff'path)
( On Intel OmpiPath the same speed as with --mca btl ^tcp,openib )
On 03/16/17 01:03, Jeff Squyres (jsquyres) wrote:
It looks like t
Ok. I talked with Nathan about this a bit. Here's what we think we should do:
1. Add an MCA param to disable (de)registration as part of ALLOC/FREE_MEM.
Because that's just the Open MPI way (moar MCA paramz!).
2. If memory hooks are enabled, default to not (de)registering as part of
ALLOC/FR
> "SJ" == Sylvain Jeaugey writes:
Hi Sylvain,
SJ> Hi Roland, I can't find this message in the Open MPI source
SJ> code. Could it be hwloc ? Some other library you are using ?
the message comes from libnvidia-ml.so.x.y which libmpi is linked against.
Thanks,
Roland
SJ> On 03/1
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