cell reordering
Cell and face reordering options for cache locality and colouring balance.
Reverse Cuthill-McKee bandwidth-reducing cell reordering
Sloan profile-reducing cell reordering
Space-filling-curve cell reordering
Space-filling curve used when sfc is enabled
| Value | What it does | When to use it |
|---|---|---|
| hilbert default | Orders each partition's interior cells along a Hilbert curve through their centroids. The curve has no jumps, so cells close in the ordering are close in space. | The default. The ordering is kept only if it reduces the cell-adjacency profile. |
| morton | Orders each partition's interior cells along a Morton (Z-order) curve, which interleaves the bits of the centroid coordinates. The curve jumps between distant regions. | An alternative to |
Sort faces within each colour by their lowest cell index