> > Perhaps you also want SNESSetLagPreconditioner > > - lag - -1 indicates NEVER rebuild, 1 means rebuild every time the Jacobian > is computed within a single nonlinear solve, 2 means every second time > the Jacobian is built etc. -2 indicates rebuild preconditioner at > next chance but then never rebuild after that > > > With this option it will (if coded correctly) reuse the same Jacobian and > preconditioner for every SNESSolve() you call (it will just get Jacobian once > the first time). I think this is what you want. > >
That's what I need, thanks, Mark
