Power-Utility-Driven Write Management for MLC PCM

doi:10.1145/2997648

	Power-Utility-Driven Write Management for MLC PCM
	Li, Bing 1,2,3; Hu, Yu 1,3; Wang, Ying 1,3; Ye, Jing 1,3; Li, Xiaowei 1,3
	2017-05-01
发表期刊	ACM JOURNAL ON EMERGING TECHNOLOGIES IN COMPUTING SYSTEMS
ISSN	1550-4832
卷号	13 期号:3 页码:22
摘要	Phase change memory (PCM) is a promising alternative to Dynamic Random Access Memory (DRAM) as main memory due to its merits of high density and low leakage power. Multi-level Cell (MLC) PCM is more attractive than Single-level Cell (SLC) PCM, because it can store multiple bits per cell to achieve higher density and lower per-bit cost. With the iterative program-verify write technique, MLC PCM writes demand at much higher power than DRAM writes, while the power supply system of MLC memory system is similar to that of DRAM, and the power capability is limited. The incompatibility of high write power and limited power budget results in the degradation of the write throughput and performance in MLC PCM. In this work, we investigate both write scheduling policy and power management to improve the MLC power utility and alleviate the negative impacts induced by high write power. We identify the power-utility-driven write scheduling as an online bin-packing problem and then derive a power-utility-driven scheduling (PUDS) policy from the First Fit algorithm to improve the write power usage. Based on the ramp-down characteristic of the SET pulse (the pulse changes the PCM to high resistance), we propose the SET Power Amortization (SPA) policy, which proactively reclaims the power tokens at the intra-SET level to promote the power utilization. Our experimental results demonstrate that the PUDS and SPA respectively achieve 24% and 27% performance improvement over the state-of-the-art power management technique, and the PUDS&SPA has an overall 31% improvement of the power utility and 50% increase of performance compared to the baseline system.
关键词	Phase change memory multi-level main memory power write management optimization
DOI	10.1145/2997648
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (NSFC Program)[61274030] ; National Natural Science Foundation of China (NSFC Program)[61432017] ; National Natural Science Foundation of China (NSFC Program)[61504153] ; National Natural Science Foundation of China (NSFC Program)[61532017] ; National Basic Research Program of China (973 Program)[2011CB302503]
WOS研究方向	Computer Science ; Engineering ; Science & Technology - Other Topics
WOS类目	Computer Science, Hardware & Architecture ; Engineering, Electrical & Electronic ; Nanoscience & Nanotechnology
WOS记录号	WOS:000401535800021
出版者	ASSOC COMPUTING MACHINERY
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/7178
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Li, Bing
作者单位	1.Chinese Acad Sci, Inst Comp Technol, State Key Lab Comp Architecture, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.6 Ke Xue Yuan South Rd, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Li, Bing,Hu, Yu,Wang, Ying,et al. Power-Utility-Driven Write Management for MLC PCM[J]. ACM JOURNAL ON EMERGING TECHNOLOGIES IN COMPUTING SYSTEMS,2017,13(3):22.
APA	Li, Bing,Hu, Yu,Wang, Ying,Ye, Jing,&Li, Xiaowei.(2017).Power-Utility-Driven Write Management for MLC PCM.ACM JOURNAL ON EMERGING TECHNOLOGIES IN COMPUTING SYSTEMS,13(3),22.
MLA	Li, Bing,et al."Power-Utility-Driven Write Management for MLC PCM".ACM JOURNAL ON EMERGING TECHNOLOGIES IN COMPUTING SYSTEMS 13.3(2017):22.