> On Jul 6, 2016, at 12:17 PM, Xiangdong <[email protected]> wrote: > > Hello everyone, > > I am using snes_type aspin, which is actually newtonls + npc (nasm). After > each newton iteration, if I call SNESGetFunction, the preconditioned residual > is obtained. However, if I use SNESComputeFunction, I get the true > (unpreconditioned) residual. > > If I want to know the preconditioned residual at a point different from > current solution, which function should I call?
I don't think it is possible. Barry > > Thanks. > > Best, > Xiangdong
