[Mpi-22] MPI-2.1 ambiguity?

[Hubert Ritzdorf]

Hi,

when I remember correctly, it was decided to provide the C MPI datatypes 
in Fortran since
the Fortran datatypes are supported in C and C++.

Hubert

Jeff Squyres wrote:
> I will file a proposal about this if there is a problem, but I wanted 
> to ask the group before I did so.  In the changelog for MPI-2.1:
>
> 2. Section 3.2.2 on page 27, Section 16.1.6 on page 453, and Annex A.1 
> on page 491.
> MPI_LONG_LONG_INT, MPI_LONG_LONG (as synonym), MPI_UNSIGNED_LONG_LONG,
> MPI_SIGNED_CHAR, and MPI_WCHAR are moved from optional to official and they
> are therefore defined for all three language bindings.
>
> Note that it says that these C datatype names must be in all three 
> language bindings.
>
> Are C MPI datatypes supposed to be available in Fortran?  I looked in 
> mpif.h for Open MPI, MPICH2, HP MPI, and Intel MPI, and I didn't see C 
> MPI datatypes in there (e.g., MPI_INT and MPI_FLOAT).
>
> So:
>
> - is there language somewhere in MPI that says that C datatypes are 
> not supposed to be in mpif.h? (and therefore the MPI-2.1 changelog is 
> wrong)
>
> or
>
> - are all 4 of the above MPI's wrong for not including the C datatypes 
> in mpif.h?
>
> --Jeff Squyres
> Cisco Systems
>
>
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