[mpich-discuss] mpich2 with ifort and -i8 -r8

[Rajeev Thakur]

I think you will need to pass the same options to the Intel C compiler if it can be done.

Rajeev

On Feb 4, 2011, at 1:08 PM, Pierre-Olivier Dallaire wrote:

> Hi,
> 
> I'm trying to compile mpich2 with Fortran support and also with options "-i8 -r8" for the
> ifort compiler (intel) / however, I'm getting this :
> 
> configure: error: Fortran integers and C ints are not the same size.  The current Fortran binding does not support this case.  Either force the Fortran compiler to use integers of 4 bytes, or use --disable-f77 on the configure line for MPICH2.
> 
> Trying to disable f77 does not work / is there anything else I can do ? I absolutely need to convert
> the real and integers.
> 
> Regards,
> 
> PO
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