[Mpi-forum] ABI

Jeff Hammond jeff.science at gmail.com
Thu Dec 5 12:23:03 CST 2013

Todd Gamblin wrote a nice PMPI interposition generator that would
partially automate such an implementation once the various object
converters were written by people familiar with the various ABIs.
I've used it for something related to ABI conversion, albeit much,
much simpler, so I'm happy to contribute to this effort, but if and
only if Intel resolves the patent issue.

If there's another way to do this that doesn't use PMPI, I don't
understand enough of how it would work to evaluate if I could

Maybe Squyres can create https://github.com/open-mpi/goldenspike (in
reference to http://en.wikipedia.org/wiki/Golden_spike) for people to
fork and add the various x2y ABI conversion tools.


On Thu, Dec 5, 2013 at 12:14 PM, Jeff Squyres (jsquyres)
<jsquyres at cisco.com> wrote:
> I think there was one other key takeaway from the ABI WG: it would seem like a good public solution would be to develop an open source morph MPI layer that can talk to any MPI implementation on the back-end.
> A few people have tried this over the years with moderate success, but I don't think that anyone has fully implemented MPI3 and pushed it to the entire HPC community.  So none of them have gotten too widely adopted.
> My $0.02 is that a public, free, open source Morph MPI layer with an active community behind it would still be a very good starting point for whatever could be achieved via some kind of binary compatibility.
> On Dec 5, 2013, at 12:42 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote:
>> "Supalov, Alexander" <alexander.supalov at intel.com> writes:
>>> I am afraid I cannot comment on particular snippets of other people's
>>> email 5-6 year after the events. If you wish, we can get this trail
>>> offline and go through the material with you.
>> No worries.  I'm happy to discuss further, though this list probably
>> isn't the best place.  Are the interested parties subscribed to
>> discuss at mpich.org?
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> --
> Jeff Squyres
> jsquyres at cisco.com
> For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
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Jeff Hammond
jeff.science at gmail.com

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