On Jan 26, 2010, at 8:39 AM, Quincey Koziol wrote:

I think we need to pick a "preferred vector" through the name combinations for each version of the standard and use a feature-neutral suffix for the changed routines' names. Either a totally abstract sequential suffix like: (nothing)->2->3->4, or a standard version specific suffix: (nothing)->3->31->32->...->4->41->...

I think the single digits would be fine. We have a precedent of keeping compatibility between minor MPI revs and only breaking compatibility if something is really broken. I.e., if we make MPI_Foo3 and then find out that it's broken, I think the gut reaction of the Forum would be to fix MPI_Foo3, not make MPI_Foo31. -- Jeff Squyres jsquyres_at_[hidden]