[petsc-users] Example of PCShell

[Jed Brown]

On Tue, Mar 15, 2011 at 14:21, Zhang, Yifan <yifan_zhang at brown.edu> wrote:

> I am trying to preconditioning spectral method with 2nd order finite
> difference.
>

You might be interested in https://github.com/jedbrown/spectral-petsc which
does this for Chebyshev spectral methods where differentiation is
implemented using FFTW. There are examples for a scalar elliptic problem and
3D Stokes. It may need updates to work with petsc-3.1 or petsc-dev.


> So just writing to ask if anyone got a good Petsc examples of
> using PCShell in fortran other than ex15.F .
>

There is src/snes/examples/tutorials/ex33f.F, but that example can't be
built because the common block definition is missing.
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