[petsc-users] PETSc with 64 bit integer

[Jed Brown]

On Wed, May 30, 2012 at 11:01 AM, Keita Teranishi <keita at cray.com> wrote:

> Thanks for the reply! How about the other third-party software? Does it
> convert PETScInt to “int”?


Third party software doesn't know about PetscInt.

Those packages that support 64-bit integers must have their own solution
when they call BLAS. We don't, as far as I know, interface to any packages
that claim 64-bit support through hacks like "-i8" compiler flags.
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