On 11/27/22 19:14, 'yy.wayne' via deal.II User Group wrote:
I get an error from compute_component_wise with level=0. I reduced the problem
to a minimal working example, where I write a mesh and read to create a dense
coarse level. The error shows even there's only one triangulation level. I
assume the write & read mesh is causing this bug, since other part is similiar
to dealii/tests/multigrid/renumbering_06.cc.
Writing the mesh just outputs the active cells, and loses the hierarchy that
resulted from refinement. When you read it back in, you get a mesh with just
one level.
You need a way to write and read the mesh that preserves the refinement
levels. You can either to this via serialization, or using the
PersistentTriangulation class.
Best
W.
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Wolfgang Bangerth email: bange...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/
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