VTXWriter cannot output time history

[dokken]

Please note that this has already been discussed at:

Can't write DG0 time data to VTX

At first I thought this was just an issue in DOLFINx, so I modified the writer to add the time step counter into CellData, ref: Comparing main...dokken/time-dependent-celldata · FEniCS/dolfinx · GitHub Inspecting the results.bp file, with the following MWE i get: from dolfinx import mesh, fem, io, default_scalar_type from mpi4py import MPI import numpy as np domain = mesh.create_unit_square(MPI.COMM_WORLD, 2, 2) V = fem.functionspace(domain, ("DG", 0)) v = fem.Function(V) vtx = io.VTXWriter…

and is an open issue in ADIOS2/VTXWriter