Hi Julian,

Here's the reference to the issue 
<https://github.com/dealii/dealii/issues/4443> I've just opened on GitHub.

Best,
J-P

On Tuesday, May 30, 2017 at 7:54:18 AM UTC+2, Jean-Paul Pelteret wrote:
>
> Hi Julian,
>
> Well, it seems then that my lack of optimism in my suggestion was well 
> founded. I've done a bit more digging and I think that this might be a bug 
> in the library. I don't see the member AdditionalData 
> <https://github.com/dealii/dealii/blob/master/include/deal.II/lac/trilinos_solver.h#L342>
>  
> struct in the TrilinosWrappers::SolverBase class being initialised 
> anywhere. Rather it appears that each Solver keeps it own AdditionalData 
> <https://github.com/dealii/dealii/blob/master/source/lac/trilinos_solver.cc#L609>
>  
> that is not reachable by the base class, and that stored in the base class 
> reverts to the default values chosen in the constructor. I'll open up an 
> issue on the GitHub repository. Would you like to submit a patch for the 
> bug? I'd be happy to help you do so.
>
> Best,
> J-P
>

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