[MPI3 Fortran] Teleconference Wednesday, Sept. 17: Summary

[Jeff Squyres]

On Sep 17, 2008, at 12:23 PM, Supalov, Alexander wrote:

> PS. I would not say that there's resistance to the long counts.  
> There's
> just a number of ways how they can be introduced, and some interesting
> implications in the file I/O and other areas that may not meet the eye
> right away.
>
> The matter of ILP64 support (i.e., ints as big as longs and pointers)
> may be rather pertinent. Some guys have old Cray style apps that they
> want to port. The MPI interface should behave nicely here, I'd say, if
> only out of respect.
>
> Another interesting aspect is the autodouble options, as some call  
> it. I
> believe this makes all reals be real*8. Again, some people use this,
> mostly for the same reason, and Fortran MPI interface should  
> probably do
> something about this now, when we have the chance to do things  
> "right",
> for a change. :)

Agree with all of the above.

Suffice it to say, the issue is still open for the MPI-3 forum and is  
not expected to be closed/decided for a while (if for no other reason  
than MPI-2.2 discussions are likely to take precedence over MPI-3  
discussions).  So it's good to keep this as an "open item" here in the  
Fortran WG, but make sure we track what's happening in the overall  
forum with regards to this issue.

-- 
Jeff Squyres
Cisco Systems