[Mpi3-abi] ABI: for languages?

[Greg Lindahl]

On Fri, Sep 12, 2008 at 01:17:45PM -0400, Jeff Squyres wrote:

> If there are not -- if the majority are in the "we QA with 
> MPI's X, Y, and Z, and thou shallt not run with any other", then an ABI 
> is not worthwhile.

We knew before we started that many ISVs had this opionion. But if
they ever change their minds in the future, the ABI is useful to
them. And when they go to test, the ABI saves them a recompile.

The early adopters of the ABI will not be ISVs. It will be
non-commercial people who want to ship pre-compiled application
binaries, and who don't do much testing of individual MPIs or
platforms anyway.  There are many free non-MPI scientific programs
that distribute precompiled binaries. MPI app authors would like to do
the same.

-- greg