Hi,
I am working on multi-level grid for Poisson equation. I need to refine
some sub-region in the computational domain. To this, I plan to build some
boxes (patches) based on the coarsest level. I am using DM to manage the data.
I found there is a new function DMPatachCreate() in the version 3.4. Is this
function the right one I should use for the refined region? If it is not,
which ones I should use?
My proposed approach is to start with code
dm/impls/patch/examples/tests/ex1.c. And then follow the code
/dm/examples/tutorials/ex65dm.c. Is this approach the right way to my goal?
In addition, I need to use not only the nodes but also the cells including
nodes. Should I use DMMesh to create the cells? I noticed DMMesh is mainly for
unstructured grid, but I didn't find other class that implements structured
cells. Can anybody give me some suggestions on multi-level grid or let me know
which examples I should start with? Thanks.
