摘要
We present a fast parallel algorithm running in O(log 2n) time on a CREW PRAM with O(n) processors for finding the kth longest path in a given tree of n vertices (with Θ(n 2) intervertex distances). Our algorithm is obtained by efficient parallelization of a sequential algorithm which is a variant of both Megiddo et al's algorithm [12] and Fredrickson et al's algorithm [3] based on centroid decomposition of tree and succinct representation of the set of intervertex distances. With the same time and space bound as the best known result, our sequential algorithm maintains a shorter length of the decomposition tree.
原文 | English |
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頁面 | 164-169 |
頁數 | 6 |
出版狀態 | Published - 1997 |
對外發佈 | 是 |
事件 | Proceedings of the 1997 Conference on Advances in Parallel and Distributed Computing - Shanghai, China 持續時間: 19 3月 1997 → 21 3月 1997 |
Conference
Conference | Proceedings of the 1997 Conference on Advances in Parallel and Distributed Computing |
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城市 | Shanghai, China |
期間 | 19/03/97 → 21/03/97 |