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2017 Proceedings of the Ninteenth Workshop on Algorithm Engineering and Experiments (ALENEX)

Engineering a direct k-way Hypergraph Partitioning Algorithm


We develop a fast and high quality multilevel algorithm that directly partitions hypergraphs into k balanced blocks – without the detour over recursive bipartitioning. In particular, our algorithm efficiently implements the powerful FM local search heuristics for the complicated k-way case. This is important for objective functions which depend on the number of blocks connected by a hyperedge. We also remove several further bottlenecks in processing large hyperedges, develop a faster contraction algorithm, and a new adaptive stopping rule for local search. To further reduce the size of hyperedges, we develop a pin-sparsifier based on the min-hashing technique that clusters vertices with similar neighborhood. Extensive experiments indicate that our KaHyPar-partitioner compares favorably with the best previous systems. KaHyPar is faster than hMetis and computes better solutions. KaHyPar's results are considerably better than the (faster) PaToH partitioner.

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2017 Proceedings of the Ninteenth Workshop on Algorithm Engineering and Experiments (ALENEX)
Pages: 28 - 42
Editors: Sándor Fekete, TU, Braunschwieg, Germany and Vijaya Ramachandran, UT, Austin, Texas, USA
ISBN (Online): 978-1-61197-476-8


Published online: 4 January 2017



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