Edit: I am also using matrix-free operators some of which require iterating
over the inner *cell *batches -> I am also using matrix-free operators
some of which require iterating over the inner *face* batches.
On Friday, December 12, 2025 at 10:00:46 AM UTC Davit Gyulamiryan wrote:
> Dear deal.ii team,
>
> I am developing some code that uses multigrid with adaptively refined
> triangulations (the multigrid levels are built by passing
> `construct_multigrid_hierarchy` to the triangulation). I am also using
> matrix-free operators some of which require iterating over the inner cell
> batches. However, I have encountered the following message from the code
> raised from
> the `MatrixFere::reinint()` function when initialising the matrix-free
> storage fo ther multigrid
> levels:
> if (additional_data.mapping_update_flags_inner_faces != update_default)
> Assert(face_setup.refinement_edge_faces.empty(),
> ExcNotImplemented("Setting up data structures on MG levels with "
> "hanging nodes is currently not supported."));
>
> I was wondering if this is something that is planned to be released soon,
> or if I could get some advice on how to implement it myself.
>
> Looking forward to hearing from you.
>
> Best wishes,
> Davit Gyulamiryan
>
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