Re: [ofa-general] Re: [GIT PULL] please pull ummunotify

Jeff Squyres
2009-09-15T12:38:08Z

On Sep 15, 2009, at 3:03 AM, KOSAKI Motohiro wrote:

> - I guess you have your MPI implementaion w/ ummunotify, right?
> - I guess you have test sevaral pattern, right?
> if so, can we see your test result?
>

Roland's answers to the rest of these questions were spot-on, so I
thought I'd just throw in a quick reply to the above questions: yes,
we have a prototype Open MPI implementation with code that uses
ummunotify (http://bitbucket.org/jsquyres/ummunot/). I just finished
fixing a high-priority (but unrelated) bug in Open MPI, so merging the
prototype ummunotify code into the upstream Open MPI repository is now
at the top of my priority list.

We have done quite a bit of testing with ummunotify, but since the
code is not yet in the Open MPI mainline, most of the testing has been
manual (not through our automated testing system). As far as we can
tell, everything is working properly with Open MPI + ummunotify. We
also anticipate that other MPI implementations will be able to use
ummunotify, potentially using Open MPI as a reference ummunotify
implementation.

FWIW: we went through a bunch of design and implementation iterations
with Roland to get code that everyone was happy with:

- Roland likes it (and anticipated that the kernel community would be
receptive to)
- we like it
- performs correctly

Hope that helps.

--
Jeff Squyres
jsquyres@cisco.com