[petsc-users] running applications with 64 bit indices

[Barry Smith]

> On Nov 27, 2015, at 4:47 PM, Randall Mackie <rlmackie862 at gmail.com> wrote:
> 
> I’ve been struggling to get an application running, which was compiled with 64 bit indices.
> 
> It runs fine locally on my laptop with a petsc-downloaded mpich (and is Valgrind clean).
> 
> On our cluster, with Intel MPI, it crashes immediately. When I say immediately, I put a goto end of program right after PetscInitialize, and it still crashes immediately.
> 
> The same program compiled without 64 bit indices runs fine with Intel MPI.
> 
> Are there any special configuration options that must be set to use 64 bit indices in an application compiled with Intel MPI?

  Nope.

   Try on the cluster with valgrind? Try on the cluster with a debugger? Does it crash with one process?
  
   Do the PETSc examples run with 64 bit integers on the cluster? Petsc Fortran examples?

  Barry

> 
> Any suggestions appreciated.
> 
> Thanks,
> 
> Randy M.