[petsc-dev] thread communicator

[Jeff Hammond]

Rob:

You might be interested in the MPI-4 endpoints proposal.  It should allow
MPI communicators to act as thread communicators.

Jeff

On Tue, Jan 12, 2016 at 12:33 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:

>
>   Rob,
>
>     I guess you missed the last FASTMath meeting. We have stopped all work
> on using threads a long time ago because we never saw an improvement in
> performance and it was a pain to maintain. We even ripped the thread code
> out of PETSc so currently we are back to being an all "MPI" model.
>
>    Barry
>
> So far we haven't lost all our funding :-)
>
>
>
> > On Jan 11, 2016, at 12:28 PM, Falgout, Rob <falgout2 at llnl.gov> wrote:
> >
> > Hi Barry,
> >
> > What is the latest on the thread communicator idea you guys were working
> on?  We are having discussions here with a variety of folks (application
> and library developers as well as vendors) about similar ideas, so I’d like
> to bring your work into the mix.  Let me know.  Thanks!
> >
> > -Rob
> >
> > Robert D. Falgout
> > Center for Applied Scientific Computing
> > Lawrence Livermore National Laboratory
> > P.O. Box 808, L-561, Livermore, CA  94551
> > Phone - (925) 422-4377, Email - rfalgout at llnl.gov, Web -
> http://people.llnl.gov/falgout2
>
>


-- 
Jeff Hammond
jeff.science at gmail.com
http://jeffhammond.github.io/
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