On Mon, Nov 5, 2018 at 8:41 AM Karol Lewandowski via petsc-users < petsc-users@mcs.anl.gov> wrote:
> Hi, > > I am solving a highly nonlinear problem using SNES solver. Under certain > conditions during the iterations I already know that the step will diverge > (in the next few iterations). Is there a clever way to tell SNES to diverge > immediately so I can start a new step with reduced step size? > Set your own convergence test I think: https://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/SNES/SNESSetConvergenceTest.html Matt > Thank you, > > Karol -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>
