On Fri, 17 Feb 2017, r...@open-mpi.org wrote:
Depends on the version, but if you are using something in the v2.x
range, you should be okay with just one installed version
Thanks Ralph.
How good is MPI_THREAD_MULTIPLE support these days and how far up the
wishlist is it, please?
We don't ge
All,
I am seeing a fatal error with OpenMPI 2.0.2 if requesting support for
MPI_THREAD_MULTIPLE and afterwards creating a window using
MPI_Win_create. I am attaching a small reproducer. The output I get is
the following:
```
MPI_THREAD_MULTIPLE supported: yes
MPI_THREAD_MULTIPLE supported: y
We have been making a concerted effort to resolve outstanding issues as the
interest in threaded applications has grown. It should be pretty good now, but
we do see occasional bug reports, so it isn’t perfect.
> On Feb 18, 2017, at 12:14 AM, Mark Dixon wrote:
>
> On Fri, 17 Feb 2017, r...@open
Hi Joseph
What OS are you using when running the test?
Could you try running with
export OMPI_mca_osc=^pt2pt
and
export OMPI_mca_osc_base_verbose=10
This error message was put in to this OMPI release because this part of the
code has known problems when used multi threaded.
Joseph Schuchart
I am also a proponent of the multiple thread support. For many reasons:
- code simplification
- easier support of computation/communication overlap with fewer
synchronization points
- possibility of creating exception aware MPI Code (I think the MPI
standard cruelly lacks constructs for a natura
FWIW: have you taken a look at the event notification mechanisms in PMIx yet?
The intent there, among other features, is to provide async notification of
events generated either by the system (e.g., node failures and/or congestion)
or other application processes.
https://pmix.github.io/master <
