Vladimir Kulagin

@RemDelaporteMathurin Do you want to implement all [log_levels](https://bitbucket.org/fenics-project/dolfin/src/master/dolfin/log/LogLevel.h) of the [logger ](https://bitbucket.org/fenics-project/dolfin/src/master/dolfin/log/) or a reduced variant? I also think that some re-work would help in the case of parallel computing,...

Adapting the fenics log system seems to be a good idea. We can override some of fenics methods similar to Newton solver. Though, it's a tough question. I think we...

> By clearly divided do you mean that we shouldn't use fenics' log system? I meant a dedicated message as: ``` *** ------------------------------------------------------------------------- *** FESTIM encountered an error. If you...

Are there any thoughts on how FESTIM log_levels should be related to fenics log_levels?

@RemDelaporteMathurin What about other material properties, say, thermal conductivity?

@RemDelaporteMathurin I guess, for a time-dependent problem the final absolute/relative tolerance at each time-step is OK. Another option is to plot 1/time_step vs. time-step if adaptive time-step is used. According...

Don't know about not super hard) Possibly, the shown below is not what we need. As I see from [dolfin](https://github.com/live-clones/dolfin/tree/master/dolfin), `NonlinearVariationalSolver` (used for solving in FESTIM) creates `Newton solver` on...

> I think on your second plot you meant to label the y axes with absolute error and relative error right? Yes. > Do we really need to write our...

Is [Task 3](https://github.com/festim-dev/FESTIM-workshop/blob/main/tasks/task03.ipynb) of Workshop a suitable test case?

So, I guess this can be discussed. I used the script from [Task 3](https://github.com/festim-dev/FESTIM-workshop/blob/main/tasks/task03.ipynb) of FESTIM Workshop with minor modifications regarding the simulation model. Then I introduced the previously shown...