In order to help explain and understand composible solver I started to add the
PetscViewerDraw ability to the solver objects to graphically explain the
solvers used and the decomposition of the solvers. It is very crude now but
I've attached a couple of images of what are generated when using
-ts/snes/ksp_view_draw We need to add more information (somehow) to indicate
the multigrid levels as "levels" the field split decomposition etc. Any
thoughts or code welcome.
Barry
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