Wide Operational Range Processor Power Delivery Design for Both Super-Threshold Voltage and Near-Threshold Voltage Computing

doi:10.1007/s11390-016-1625-7

	Wide Operational Range Processor Power Delivery Design for Both Super-Threshold Voltage and Near-Threshold Voltage Computing
	He, Xin 1,2; Yan, Gui-Hai 1; Han, Yin-He 1; Li, Xiao-Wei 1
	2016-03-01
发表期刊	JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY
ISSN	1000-9000
卷号	31 期号:2 页码:253-266
摘要	The load power range of modern processors is greatly enlarged because many advanced power management techniques are employed, such as dynamic voltage frequency scaling, Turbo Boosting, and near-threshold voltage (NTV) technologies. However, because the efficiency of power delivery varies greatly with different load conditions, conventional power delivery designs cannot maintain high efficiency over the entire voltage spectrum, and the gained power saving may be offset by power loss in power delivery. We propose SuperRange, a wide operational range power delivery unit. SuperRange complements the power delivery capability of on-chip voltage regulator and off-chip voltage regulator. On top of SuperRange, we analyze its power conversion characteristics and propose a voltage regulator (VR) aware power management algorithm. Moreover, as more and more cores have been integrated on a singe chip, multiple SuperRange units can serve as basic building blocks to build, in a highly scalable way, more powerful power delivery subsystem with larger power capacity. Experimental results show SuperRange unit offers 1x and 1.3x higher power conversion efficiency (PCE) than other two conventional power delivery schemes at NTV region and exhibits an average 70% PCE over entire operational range. It also exhibits superior resilience to power-constrained systems.
关键词	voltage regulator power delivery near-threshold computing multicore processor
DOI	10.1007/s11390-016-1625-7
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[61572470] ; National Natural Science Foundation of China[61532017] ; National Natural Science Foundation of China[61522406] ; National Natural Science Foundation of China[61432017] ; National Natural Science Foundation of China[61376043] ; National Natural Science Foundation of China[61221062]
WOS研究方向	Computer Science
WOS类目	Computer Science, Hardware & Architecture ; Computer Science, Software Engineering
WOS记录号	WOS:000372154100003
出版者	SCIENCE PRESS
引用统计	被引频次：1[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/2XEOYT63/8667
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	He, Xin; Yan, Gui-Hai; Han, Yin-He; Li, Xiao-Wei
作者单位	1.Chinese Acad Sci, Inst Comp Technol, State Key Lab Comp Architecture, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	He, Xin,Yan, Gui-Hai,Han, Yin-He,et al. Wide Operational Range Processor Power Delivery Design for Both Super-Threshold Voltage and Near-Threshold Voltage Computing[J]. JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY,2016,31(2):253-266.
APA	He, Xin,Yan, Gui-Hai,Han, Yin-He,&Li, Xiao-Wei.(2016).Wide Operational Range Processor Power Delivery Design for Both Super-Threshold Voltage and Near-Threshold Voltage Computing.JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY,31(2),253-266.
MLA	He, Xin,et al."Wide Operational Range Processor Power Delivery Design for Both Super-Threshold Voltage and Near-Threshold Voltage Computing".JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY 31.2(2016):253-266.