Differentiability wrt. to mesh vertex positions

[andrinr]

Does Trixi.jl support differentiability with respect to the vertex positions when simulating on an unstructured mesh?

[sloede]

Good question. Since it is possible to differentiate through an entire simulation to compute, e.g., the Jacobian using Enzyme.jl, I assume that differentiating wrt to vertex positions should in general be possible, yes. However, I do not think anyone has tried this yet.

[andrinr]

Ok thanks a lot! I might give it a shot to try this in the future, given I can't find a good alternative before.