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

[Jeff Squyres (jsquyres)]

There have been a few presentations showing the latest MPI-3 status of various MPI implementations; the latest was at the SC trade show a month ago (I don’t know if those slides are online).

FWIW, the upcoming OMPI 1.7.4 release has all of MPI-3 except the new one-sided stuff (to include the shared memory stuff, which is directly related to the new MPI-3 one-sided stuff).  I think pretty much all MPI’s are pretty close to first / nominal “full" MPI-3 implementations these days — full / optimized implementations will happen over time.


On Dec 17, 2013, at 9:29 AM, Thompson, Matt (GSFC-610.1)[SCIENCE SYSTEMS AND APPLICATIONS INC] <matthew.thompson at nasa.gov> wrote:

> 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
> 
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-- 
Jeff Squyres
jsquyres at cisco.com
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