On 5/1/19 5:58 AM, 'Maxi Miller' via deal.II User Group wrote: > > I don't know NOX, but is it using an update that it adds to the > solution in > each step? If so, you need to have the correct boundary conditions > in the > initial guess already. What happens if you only allow NOX to do zero > or one > iterations? > > Zero iterations is not allowed, the first iteration already goes way off > (expected highest value: 1, calculated value: 1e6), regardless if I set > boundary conditions already to the solution vector I feed to NOX, or if > I set the boundary conditions during the assembly of the right hand side.
I don't know NOX at all, so I'm afraid there is little else I can to help you with this. As always, make the problem small and easy (e.g., try to find a constant solution where the nonlinear solver only has to find *which* constant value you are looking for). Best W. -- ------------------------------------------------------------------------ Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.