A general SIMD-based approach to accelerating compression algorithms

doi:10.1145/2735629

CORC > 北京大学 > 信息科学技术学院

	A general SIMD-based approach to accelerating compression algorithms
	Zhao, Wayne Xin ; Zhang, Xudong ; Lemire, Daniel ; Shan, Dongdong ; Nie, Jian-Yun ; Yan, Hongfei ; Wen, Ji-Rong
刊名	acm transactions on information systems
	2015
DOI	10.1145/2735629
英文摘要	Compression algorithms are important for data-oriented tasks, especially in the era of 'Big Data.' Modern processors equipped with powerful SIMD instruction sets provide us with an opportunity for achieving better compression performance. Previous research has shown that SIMD-based optimizations can multiply decoding speeds. Following these pioneering studies, we propose a general approach to accelerate compression algorithms. By instantiating the approach, we have developed several novel integer compression algorithms, called Group-Simple, Group-Scheme, Group-AFOR, and Group-PFD, and implemented their corresponding vectorized versions. We evaluate the proposed algorithms on two public TREC datasets, a Wikipedia dataset, and a Twitter dataset. With competitive compression ratios and encoding speeds, our SIMD-based algorithms outperform state-of-the-art nonvectorized algorithms with respect to decoding speeds. ? 2015 ACM.; SCI(E); EI; 0; ARTICLE; batmanfly@gmail.com; zhang.xd927@gmail.com; lemire@gmail.com; nie@iro.umontreal.ca; yhf1029@gmail.com; jirong.wen@gmail.com; 3; 33
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/328907]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Zhao, Wayne Xin,Zhang, Xudong,Lemire, Daniel,et al. A general SIMD-based approach to accelerating compression algorithms[J]. acm transactions on information systems,2015.
APA	Zhao, Wayne Xin.,Zhang, Xudong.,Lemire, Daniel.,Shan, Dongdong.,Nie, Jian-Yun.,...&Wen, Ji-Rong.(2015).A general SIMD-based approach to accelerating compression algorithms.acm transactions on information systems.
MLA	Zhao, Wayne Xin,et al."A general SIMD-based approach to accelerating compression algorithms".acm transactions on information systems (2015).