Round- and Message-Optimal Distributed Graph Algorithms
Round- and Message-Optimal Distributed Graph Algorithms
复制标题
轮次和消息最优分布式图算法
DOI:
10.1145/3212734.3212737
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Wajc, David
中科院分区:
文献类型:
--
作者:
Haeupler, Bernhard;Hershkowitz, D. Ellis;Wajc, David
Distributed graph algorithms that separately optimize for either the number of rounds used or the total number of messages sent have been studied extensively. However, algorithms simultaneously efficient with respect to both measures have been elusive. For example, only very recently was it shown that for Minimum Spanning Tree (MST), an optimal message and round complexity is achievable (up to polylog terms) by a single algorithm in the CONGEST model of communication.In this paper we provide algorithms that are simultaneously round- and message-optimal for a number of well-studied distributed optimization problems. Our main result is such a distributed algorithm for the fundamental primitive of computing simple functions over each part of a graph partition. From this algorithm we derive round- and message-optimal algorithms for multiple problems, including MST, Approximate Min-Cut and Approximate Single Source Shortest Paths, among others. On general graphs all of our algorithms achieve worst-case optimal Õ (D+√ n) round complexity and Õ (m) message complexity. Furthermore, our algorithms require an optimal Õ (D) rounds and Õ (n) messages on planar, genus-bounded, treewidth-bounded and pathwidth-bounded graphs.
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影响因子:
1.1
作者:
L. Penso;V. Barbosa
通讯作者:
V. Barbosa
DOI:
--
发表时间:
2004
期刊:
影响因子:
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作者:
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DOI:
--
发表时间:
2014
期刊:
International Conference on Principles of Distributed Systems
影响因子:
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作者:
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通讯作者:
Roger Wattenhofer
DOI:
10.1145/3212734.3212776
发表时间:
2018
期刊:
ACM SIGACT-SIGOPS Symposium on Principles of Distributed Computing
影响因子:
--
作者:
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通讯作者:
Zuzic, Goran