One coarser level of a single bisection's multilevel hierarchy. Mirrors the cut-relevant fields of [`SubHyper`] (`vw`/`bw`/`nets`/`vnets`) plus the `match_map` that records, for each vertex of the *next-finer* level, which supervertex here it was merged into — the inverse map used to project a coarse partition back down during uncoarsening.
| 993 | } |
| 994 | } |
| 995 | } |
| 996 | |
| 997 | // ============================================================================ |
| 998 | // Multilevel coarsening |
| 999 | // ============================================================================ |
| 1000 | |
| 1001 | /// One coarser level of a single bisection's multilevel hierarchy. Mirrors the |
| 1002 | /// cut-relevant fields of [`SubHyper`] (`vw`/`bw`/`nets`/`vnets`) plus the |
| 1003 | /// `match_map` that records, for each vertex of the *next-finer* level, which |
| 1004 | /// supervertex here it was merged into — the inverse map used to project a |
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