[mpich-discuss] Fortran integer support 4/8-bytes
Geoffrey
gdjacobs at gmail.com
Fri Jun 8 06:44:26 CDT 2012
Sent from my Kobo Vox
Reuti <reuti at staff.uni-marburg.de> wrote:
>Am 08.06.2012 um 00:43 schrieb Jeff Hammond:
>
>> Does MPICH2 support Fortran bindings with 8-byte integers? Do these
>> permit values greater than what is representable in a 4-byte integer
>> or does the lower level implementation in C preclude the use of
>> arguments greater than 2^31?
>>
>> Sorry for the dumb question. I consulted the MPI standard (regarding
>> the general question with Fortran integer sizes) and the MPICH2
>> install docs (perhaps a rather old PDF from the Internet) but did not
>> find the answer.
>>
>> If the MPI standard addresses this topic, can someone point me to the
>> relevant section? I can find such random topics much easier in my
>> paper copy but I do not have access to it right now.
>
>Page 494 lists some:
>
>http://www.mpi-forum.org/docs/mpi-2.2/mpi22-report.pdf
>
>-- Reuti
>
>
>> Thanks,
>>
>> Jeff
>>
>> --
>> Jeff Hammond
>> Argonne Leadership Computing Facility
>> University of Chicago Computation Institute
>> jhammond at alcf.anl.gov / (630) 252-5381
>> http://www.linkedin.com/in/jeffhammond
>> https://wiki.alcf.anl.gov/parts/index.php/User:Jhammond
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