Quadboost: A Scalable Concurrent Quadtree

doi:10.1109/TPDS.2017.2762298

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	Quadboost: A Scalable Concurrent Quadtree
	Zhou, Keren 1; Tan, Guangming 1; Zhou, Wei 2
刊名	IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS
	2018-03-01
卷号	29 期号:3 页码:673-686
关键词	Concurrent data structures quadtree continuous find decoupling LCA
ISSN号	1045-9219
DOI	10.1109/TPDS.2017.2762298
英文摘要	Building concurrent spatial trees is more complicated than binary search trees since a space hierarchy should be preserved during modifications. We present a non-blocking quadtree (quadboost) that supports concurrent insert, remove, move, and contain operations, in which the move operation combines the searches for different keys together and modifies different positions atomically. To increase its concurrency, a decoupling approach is proposed to separate physical adjustment from logical removal within the remove operation. In addition, we design a continuous find mechanism to reduce the search cost. Experimental results show that quadboost scales well on a multi-core system with 32 hardware threads. It outperforms existing concurrent trees in retrieving two-dimensional keys with up to 109 percent improvement when the number of threads is large. Furthermore, the move operation achieves better performance than the best-known algorithm with up to 47 percent.
资助项目	National Natural Science Foundation of China[61762089] ; National Natural Science Foundation of China[61363021] ; National Natural Science Foundation of China[61521092] ; National Natural Science Foundation of China[91430218] ; National Natural Science Foundation of China[31327901] ; National Natural Science Foundation of China[61472395] ; National Natural Science Foundation of China[61272134] ; National Natural Science Foundation of China[61432018] ; National Key Research and Development Program of China[2016YFB0201305] ; National Key Research and Development Program of China[2016YFB0200300] ; National Key Research and Development Program of China[2016YFB0200504] ; National Key Research and Development Program of China[2016YFB0200803]
WOS研究方向	Computer Science ; Engineering
语种	英语
出版者	IEEE COMPUTER SOC
WOS记录号	WOS:000425173200014
内容类型	期刊论文
源URL	[http://119.78.100.204/handle/2XEOYT63/5669]
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Zhou, Keren; Zhou, Wei
作者单位	1.Chinese Acad Sci, Inst Comp Technol, State Key Lab Comp Architecture, Beijing 100864, Peoples R China 2.Yunnan Univ, Sch Software, Kunming 650221, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Keren,Tan, Guangming,Zhou, Wei. Quadboost: A Scalable Concurrent Quadtree[J]. IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS,2018,29(3):673-686.
APA	Zhou, Keren,Tan, Guangming,&Zhou, Wei.(2018).Quadboost: A Scalable Concurrent Quadtree.IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS,29(3),673-686.
MLA	Zhou, Keren,et al."Quadboost: A Scalable Concurrent Quadtree".IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS 29.3(2018):673-686.