I have created a pull request here: https://github.com/dealii/dealii/pull/3123

Thanks again


2016-09-16 10:01 GMT-04:00 Bruno Turcksin <bruno.turck...@gmail.com>:
> 2016-09-16 9:22 GMT-04:00 Vaibhav Palkar <vaibhav_pal...@iitgn.ac.in>:
>> 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?
> Since you are using a low order method in time, I am just wondering if
> the solution is linear in time. This is one way to have the exact
> solution at each time step and it could explain why the error is zero
> (assuming that there is no spatial error)
>> 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).
> Good catch!! Patch incoming.
> Thanks
> Bruno

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