On Thu, Jan 10, 2013 at 7:52 AM, Roy Stogner <roystgnr@ices.utexas.edu> wrote:
Would you also pass norm_total and any other easy-to-grab
parameters too?  If we're going to add a new API to expose internals
we should make it as useful as possible.

Along these lines, could we maybe get a reference to \DeltaU (or something)? I've found it can be very useful to visualize intermediate steps for complicated problems to see what's giving troubles. In particular, before the line search kicks in so you can see what bombed right after the linear solve in the Newton step.