On Friday, September 16, 2016 at 1:38:57 AM UTC+5:30, Bruno Turcksin wrote:
> I don't see anything wrong. The output says that your error is zero, > are you doing a simple ramp in time? It's very strange that the error > is exactly zero. What happens if you just use the default parameters? > Does step-52 work correctly? The delta_t_guess is computed around line > 715 in include/dealii/base/time_stepping.templates.h You could put a > couple of cout there to see what's happening (you will need to > recompile deal though) > The error being exactly zero is indeed intriguing. I'm still looking out for the reason why that is happening. I didn't understand what you meant by a "ramp in time". Could you please elaborate? Step-52 works fine, I'm getting exactly the same results as the online documentation. I looked at time_stepping.templates.h, I think there is a bug around line 730, delta_t_guess should be assigned the value of new_delta_t (the coarsened time step) rather than delta_t (old time step). Thanks, Vaibhav -- 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.
