There seems to be an opportunity to still have heterogeneous environment in the future.
I dont think it is fair to shift the burden on the original developer instead of the committer who broke a feature.
On Apr 23, 2014, at 09:49 , Jeff Squyres (jsquyres) <jsquyres_at_[hidden]> wrote:
> WHAT: Remove data-heterogeneous support from Open MPI
> WHY: No one uses it (it's not the default), it's broken (probably has been for a while)
> WHERE: Datatype engine, some configury, and a few other places
> TIMEOUT: Tuesday teleconf, 6 May 2014 (i.e., 2 weeks from now)
> MORE DETAIL:
> It recently came to my attention that we seem to have some bit rot in the heterogeneous data representation support such that if you configure with --enable-heterogeneous, even if you run on homogeneous machines, you can get segv's with tcp,sm,self.
> The heterogeneous support has never been enabled by default. AFAIK, only Cisco tests it regularly in its MTT. I'm be greatly surprised if many (any?) users use it at all.
> So I have to ask myself: why do we keep this functionality around? It seems like we should delete this code, simplify things a little, and move on.
> Jeff Squyres
> For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
> devel mailing list
> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel
> Link to this post: http://www.open-mpi.org/community/lists/devel/2014/04/14584.php