feedback thermal control for real-time systems

	feedback thermal control for real-time systems
	Fu Yong; Kottenstette Nicholas; Chen Yingming; Lu Chenyang; Koutsoukos Xenofon D.; Wang Hongan
	2010
会议名称	16th IEEE Real-Time and Embedded Technology and Applications Symposium, RTAS 2010
会议录名称	Real-Time Technology and Applications - Proceedings
页码	111-120
会议日期	April 12,
会议地点	Stockholm, Sweden
收录类别	EI
出版地	United States
ISSN	10801812
ISBN	9780770000000
部门归属	(1) Dept. of CSE, Washington University, St. Louis, MO, United States; (2) Dept. of EECS, Vanderbilt University, Nashville, TN, United States; (3) Institute of Software, Chinese Academy of Sciences, China
摘要	Thermal control is crucial to real-time systems as excessive processor temperature can cause system failure or unacceptable performance degradation due to hardware throttling. Real-time systems face significant challenges in thermal management as they must avoid processor overheating while still delivering desired real-time performance. Furthermore, many real-time systems must handle a broad range of uncertainties in system and environmental conditions. To address these challenges, this paper presents Thermal Control under Utilization Bound (TCUB), a novel thermal control algorithm specifically designed for real-time systems. TCUB employs a nested feedback loop that dynamically controls both processor temperature and CPU utilization through task rate adaptation. Rigorously modeled and designed based on control theory, TCUB can maintain both desired processor temperature and CPU utilization, thereby avoiding processor overheating and maintaining desired soft real-time performance. A salient feature of TCUB lies on its capability to handle a broad range of uncertainties in terms of processor power consumption, task execution times, ambient temperature, and unexpected thermal faults. The robustness of TCUB makes it particularly suitable for real-time embedded systems that must operate in highly unpredictable environments. The advantages of TCUB are demonstrated through extensive simulations under a broad range of system and environmental uncertainties. © 2010 IEEE.
关键词	Algorithms Embedded Systems Failure Analysis Nanotechnology Structures (Built Objects) Temperature Control
内容类型	会议论文
URI标识	http://ir.iscas.ac.cn/handle/311060/8764
专题	人机交互技术与智能信息处理实验室
推荐引用方式 GB/T 7714	Fu Yong,Kottenstette Nicholas,Chen Yingming,et al. feedback thermal control for real-time systems[C]. United States,2010:111-120.

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