On Wed, Apr 25, 2012 at 06:25, Jed Brown <jedbrown at mcs.anl.gov> wrote:
> Run with -ksp_monitor_true_residual -ksp_converged_reason -snes_monitor > -snes_converged_reason -snes_ls_monitor -snes_view and send the output. > > Your SNES callback gets two Mat arguments, into which are you assembling > your approximate Jacobian? Are you still calling MatAssemblyBegin/End on > the first argument, as in the examples? > There are plenty of additional suggestions here http://scicomp.stackexchange.com/questions/30/why-is-newtons-method-not-converging -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120425/b22494f1/attachment-0001.htm>
