Yes! I opened a github issue here<https://github.com/firedrakeproject/firedrake/issues/1042>. I guess the markdown messes with the python code. Sorry, for that. Henrik -- Dipl.-Math. Henrik Büsing Institute for Applied Geophysics and Geothermal Energy E.ON Energy Research Center RWTH Aachen University Mathieustr. | Tel +49 (0)241 80 49907 52074 Aachen, Germany | Fax +49 (0)241 80 49889 http://www.eonerc.rwth-aachen.de/GGE hbuesing@eonerc.rwth-aachen.de Von: firedrake-bounces@imperial.ac.uk [mailto:firedrake-bounces@imperial.ac.uk] Im Auftrag von David Ham Gesendet: Montag, 10. April 2017 11:57 An: firedrake <firedrake@imperial.ac.uk> Betreff: Re: [firedrake] firedrake_adjoint Hi Henrik, That sounds like a bug. Can you create a minimal failing example and file a github issue please? Regards, David On Mon, 10 Apr 2017 at 10:48 Buesing, Henrik <HBuesing@eonerc.rwth-aachen.de<mailto:HBuesing@eonerc.rwth-aachen.de>> wrote: Dear all, If I include from firedrake_adjoint import * in my firedrake program, my forward problem does not converge any more. If I do nothing else than loading firedrake_adjoint, should the forward problem not run as before? Note, that I set all the solver options from the command line and not in the program itself. Thus, in the program I just have solver = NonlinearVariationalSolver(problem,options_prefix="") Thank you! Henrik -- Dipl.-Math. Henrik Büsing Institute for Applied Geophysics and Geothermal Energy E.ON Energy Research Center RWTH Aachen University ------------------------------------------------------ Mathieustr. 10 | Tel +49 (0)241 80 49907<tel:+49%20241%208049907> 52074 Aachen, Germany | Fax +49 (0)241 80 49889<tel:+49%20241%208049889> ------------------------------------------------------ http://www.eonerc.rwth-aachen.de/GGE hbuesing@eonerc.rwth-aachen.de<mailto:hbuesing@eonerc.rwth-aachen.de> ------------------------------------------------------ -- Dr David Ham Department of Mathematics Imperial College London