Re: [mpi-21] Call for MPI 2.2 and 3.0 agenda items for the Jan meeting

[Greg Lindahl <lindahl@xxxxxxx>]

On Mon, Dec 03, 2007 at 09:38:41AM -0600, William Gropp wrote:

> There's one more thing to remember about the ABI discussion - not all  
> MPI target platforms are commodity clusters.  Specifying an MPI ABI  
> would be like specifying the C ABI, including the call interface.   
> This doesn't mean that there aren't interesting ABI discussions about  
> MPI (or C or Fortran or POSIX or ...) on particular classes of  
> platforms, but an "MPI ABI" that applied to all platforms would be a  
> bad idea.

Indeed, which is why my original document discussing the need for an
ABI talks about only doing one for a very limited number of platforms.
Specialized platforms with only one MPI implementation don't need one.

But, there's no need to try to have the whole ABI discussion in
advance of the meeting.

-- greg