[petsc-users] About PetscFD

[mengjie liang]

Dear Petsc,
Big fan here, you are amazing.


I want to test a finite difference method with parallel multigrid. I have done it using DMDA and now I need to do it with local mesh (non-conforming) refinement. I notice that the unreleased PetscFD is all I need. I did find Dr. Abhishek's thesis, which provides the unreleased PetscFD code. I also go through professor Dave Salac's  talk in the annual meeting. 


I know that there is no PetscFD code implementing local mesh refinement in the fd/tests directory. I tried to adapt the mesh in ex2 and view it in a vtk file. It doesn't work. But, in the talk and the thesis, there is a Laplace example implementing the local mesh refinement. I plan to go through the fd source code so that i can find out what is going on. Before that, I have to ask if you can show me the mentioned Laplace code, that would be great.


Best regards,
--Mengjie
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