[mvapich-discuss] Hello World, MPI-3.0 and mpi_f08

[Thompson, Matt (GSFC-610.1)[SCIENCE SYSTEMS AND APPLICATIONS INC]]

On 12/17/2013 09:20 AM, Jeff Hammond wrote:
> While OpenMPI doesn't yet provide all of MPI-3, they implemented the
> Fortran 2008 interface already.  The people on the Fortran working
> group defining that interface decided to prototype in OpenMPI, which
> put it ahead in that race.
>
> MPICH - from which MVAPICH is derived - does not yet support the
> Fortran 2008 interface, but it is under active development right now.
> If you want more precise information, you should write
> discuss at mpich.org.

Jeff,

Thanks, sounds like that's about what I thought. I guess it will still 
be a while before any MPI-3 implementation provides full Green Book 
support. (I wish there was a big table out there somewhere like SIGPLAN 
Fortran provides for Fortran saying what each MPI implementation has 
implemented with each successive standard.)

That said, I cannot wait for the day that 'USE mpi_f08' is the only way 
to use MPI with (modern) Fortran. I can't count the number of times 
mpif.h has provided me with hours of "fun" trying to debug an MPI issue.

Matt
-- 
Matt Thompson, PhD     SSAI, Sr Software Test Engr
NASA GSFC, Global Modeling and Assimilation Office
Code 610.1, 8800 Greenbelt Rd, Greenbelt, MD 20771
Phone: 301-614-6712              Fax: 301-614-6246