[MPIWG Fortran] F08 and pair types?

[Craig Rasmusen]

The old stuff could be deprecated because all existing compilers that I
know of support user-defined types.  I assume that "deprecated" means that
it still exists in libraries for legacy apps but is no longer really
defined in the standard.

-craig

On Tue, Dec 8, 2015 at 9:19 AM, Craig Rasmusen <rasmus at cas.uoregon.edu>
wrote:

> Fortran is a modern language?  Wut...
>
> Actually seems like a simple and good change.  For example, could define:
>
> MPI_REAL_INT and MPI_INTEGER_INT
>
> However, I'm not sure what would be in the structs (user-defined types).
> I'll have to ask Squyres what the text following
>
> "The datatype MPI_FLOAT_INT is as if defined by the following sequence of
> instructions"
>
> means.
>
> -craig
>
> On Mon, Dec 7, 2015 at 4:20 PM, Jeff Hammond <jeff.science at gmail.com>
> wrote:
>
>> I have a reasonable understanding of why the legacy Fortran bindings use
>> 2REAL, 2DOUBLE_PRECISION and 2INTEGER with {MAX,MIN}LOC reductions.
>>
>> Doesn't modern Fortran provide a way to create struct-like things along
>> the lines of C, such that more appropriate pair types could be used for
>> these?
>>
>> The relevant text is section 5.9.4 of MPI 3.1.
>>
>> Jeff
>>
>> --
>> Jeff Hammond
>> jeff.science at gmail.com
>> http://jeffhammond.github.io/
>>
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>>
>
>
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