Barry Smith <[email protected]> writes: > This is a good idea. I've tried to implement it but run into a snag. With > PCMG the outer KSP and the pre and post smoother on the finest level all > share the same DM, but only the outer KSP should be using the computerhs() > and computematrix() methods. The dmActive flag which is associated with a KSP > is how the KSP knows if to utilize the DMKSP functions or not in this case.
Can't this same situation also arise for FAS or nonlinear preconditioning? Maybe we can't avoid dmActive in SNES as well.
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