On Tue, May 15, 2012 at 3:32 PM, Avery Bingham <avery.bingham at gmail.com>wrote:
> I have also seen this behavior, and I think this might be related to the > scaling of the variables in the nonlinear system. I am using PETSc through > an application of MOOSE which allows for scaling of the variables. This > scaling reduces the chance that the default cubic backtracking line search > fails, but it is not reliable on all problems. Would it be possible to get a > scaling-independent Line Search Method implemented within PETSc? > > I'm not sure what you mean by scaling, but there is -snes_linesearch_type cp (critical point) that might be useful. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120515/e3fbec73/attachment.htm>
