[petsc-users] 64 bit integers

[Michele Rosso]

Thank you.
How can I convert?

Michele

On 08/17/2012 08:55 AM, Matthew Knepley wrote:
> On Fri, Aug 17, 2012 at 10:16 AM, Jed Brown <jedbrown at mcs.anl.gov 
> <mailto:jedbrown at mcs.anl.gov>> wrote:
>
>     On Fri, Aug 17, 2012 at 10:12 AM, Michele Rosso <mrosso at uci.edu
>     <mailto:mrosso at uci.edu>> wrote:
>
>         Does this mean that Fortran compiler invoked by the PETSc
>         Makefile will
>         compile to code with the 64 bit integer option so that also
>         Fortran Integer will be 64 bit?
>
>
>     NO, that would be bad because it breaks library interfaces.
>
>     You have to use the right types internally. If you use PetscInt
>     everywhere, then you'll be fine. If you mix types, you have to
>     find out where to convert.
>
>
> I meant that if you use PetscInt in Fortran it was also be a 64-bit 
> integer.
>
>    Matt
>
> -- 
> What most experimenters take for granted before they begin their 
> experiments is infinitely more interesting than any results to which 
> their experiments lead.
> -- Norbert Wiener

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