> >> >> -- setting KSP and PC types >> From what I understand, I can set up the KSP and PC type of the >> transient solver, which will be used only if I specify an A matrix >> for the problem. In addition, I can independently set the KSP and PC >> type of the SNES used by TS, which is used by the time solver. > > The solver is only used if you specify an implicit method. The KSP > and PC > type are used by either a SNES or just the KSP itself depending on > whether > the problem is nonlinear. >
So, if I have a problem with a LHS matrix, and I want to use an explicit method, then do I have to invert the matrix before asking the solver to run? i.e. the solver will not do that for me? Thanks, Manav
