Re: [O-MPI users] Re: [Beowulf] Alternative to MPI ABI

2005-03-26 Thread Greg Lindahl
On Sat, Mar 26, 2005 at 06:47:41AM -0500, Jeff Squyres wrote: > Regardless of which way you choose, your statement "No internals have > to change" is inaccurate. At a minimum, *EVERY* MPI API function in > somebody's implementation will have to change. That's what I call the interface, yes. I

Re: [O-MPI users] Re: [Beowulf] Alternative to MPI ABI

2005-03-26 Thread Jeff Squyres
On Mar 25, 2005, at 6:26 PM, Greg Lindahl wrote: Making even 2 MPI implementations agree on an ABI is an enormous amount of work. Given that two major MPI implementations take opposite sides on the pointers-vs.integers for MPI handles debate (and I suspect that neither is willing to change), j

[O-MPI users] ABI or API?

2005-03-26 Thread Jonathan Day
Hi, With this debate over a common interface, I've noticed that some have been talking about a common API (ie: code-level compatibility) and others an ABI (ie: binary-level compatibility). There's a big difference, so I think it might be helpful if it was cleared up as to what it was that was want