Use GridTools::exchange_cell_data_on_ghosts for DoF renumbering #13816
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drwells
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I rebased this on master to reduce chances for divergence and errors caused that way. |
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Use GridTools::exchange_cell_data_on_ghosts for DoF renumbering
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This needs #13802 und #13811 to be really efficient, but it is independent: With the exchange functions fast enough, we can now avoid building the partitioner (which in itself involves heavy communication) and instead rely on the exchange facilities of the grid. This makes the code simpler (and hopefully faster, I need to time it on a bigger scale yet).