[petsc-users] Auxiliary fields for multigrid

[Jed Brown]

Dave May <dave.mayhem23 at gmail.com> writes:

> Are there PETSc examples that do this?
>>
>
> Not that I'm aware off. Most use Galerkin or rediscretize the operator on
> the coarser levels.

src/snes/examples/tutorials/ex48.c