Provably Fast and Space-Efficient Parallel Biconnectivity
Provably Fast and Space-Efficient Parallel Biconnectivity
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经证明快速且节省空间的并行双连接
DOI:
10.1145/3572848.3577483
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Sun, Yihan
中科院分区:
文献类型:
--
作者:
Dong, Xiaojun;Wang, Letong;Gu, Yan;Sun, Yihan
Computing biconnected components (BCC) of a graph is a fundamental graph problem. The canonical parallel BCC algorithm is the Tarjan-Vishkin algorithm, which hasO(n + m) optimal work and polylogarithmic span on a graph withnvertices andmedges. However, Tarjan-Vishkin is not widely used in practice. We believe the reason is the space-inefficiency (it usesO(m) extra space). In practice, existing parallel implementations are based on breath-first search (BFS). Since BFS has span proportional to the diameter of the graph, existing parallel BCC implementations suffer from poor performance on large-diameter graphs and can be slower than the sequential algorithm on many real-world graphs.We propose the first p arallel b iconnectivity algorithm (FAST-BCC) that has optimal work, polylogarithmic span, and is space-efficient. Our algorithm creates a skeleton graph based on any spanning tree of the input graph. Then we use the connectivity information of the skeleton to compute the biconnectivity of the original input. We carefully analyze the correctness of our algorithm, which is highly non-trivial.We implemented FAST-BCC and compared it with existing implementations, including GBBS, Slota and Madduri's algorithm, and the sequential Hopcroft-Tarjan algorithm. We tested them on a 96-core machine on 27 graphs with varying edge distributions. FAST-BCC is the fastest onallgraphs. On average (geometric means), FAST-BCC is 3.1× faster than thebest existing baselineon each graph.
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DOI:
10.1109/ipdps.2018.00081
发表时间:
2017-10
期刊:
2018 IEEE International Parallel and Distributed Processing Symposium (IPDPS)
影响因子:
--
作者:
N. Ben-David;G. Blelloch;Jeremy T. Fineman;Phillip B. Gibbons;Yan Gu;Charles McGuffey;Julian Shun
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DOI:
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期刊:
022 Proceedings of the Symposium on Algorithm Engineering and Experiments (ALENEX
影响因子:
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作者:
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DOI:
10.1145/3210377.3210380
发表时间:
2018-05
期刊:
Proceedings of the 30th on Symposium on Parallelism in Algorithms and Architectures
影响因子:
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作者:
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DOI:
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发表时间:
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期刊:
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影响因子:
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作者:
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DOI:
10.1145/2935764.2935767
发表时间:
2016-07
期刊:
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影响因子:
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作者:
N. Ben-David;G. Blelloch;Jeremy T. Fineman;Phillip B. Gibbons;Yan Gu;Charles McGuffey;Julian Shun
通讯作者:
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