Dear all, I'd very much like to try the preconditioner in
Mardal, Kent-Andre, and Ragnar Winther. "Uniform preconditioners for the time dependent Stokes problem." Numerische Mathematik 98.2 (2004): 305-327.
This is an additive preconditioner that involves summing the result of two different preconditioning systems. What is the best path to trying this right now? Is it the new matrix-free stuff?
cheers
--cjc
