CSR-EHS: System-Wide Dynamic Voltage Scaling and Power Management in Battery-Powered Embedded Systems

CSR-EHS：电池供电嵌入式系统中的系统范围动态电压调节和电源管理

• 批准号: 0509564
• 负责人: Massoud Pedram
• 金额: --
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-08-15 至 2010-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0509564&HistoricalAwards=false
• 关键词: CSR; EHS; System; Wide; Dynamic

One of the key problems confronting computer system designers is the management and conservation of energy sources. This challenge is evident in a number of ways. The goal may be to extend the battery lifetime in a computer system comprising of a processor and a number of memory modules, I/O cores, and bridges. This is especially important in light of the fact that power consumption in a typical portable electronic system is increasing rapidly whereas the gravimetric energy density of its battery source is improving at a much slower pace. Other goals may be to limit the cooling requirements of a computer system or to reduce the financial burden of operating a large computing facility. The objective of this research is to develop system-wide power optimization algorithms and techniques that eliminate waste or overhead and allow energy-efficient use of the various memory and I/O devices while meeting an overall performance requirement. More precisely, this project tackles two related problems: dynamic voltage and frequency scaling targeting the minimization of the total system energy dissipation and global power management in a system comprising of modules that are potentially managed by their own local power management policies, yet must closely interact with one another in order to yield maximum system-wide energy efficiency. The broader impacts of this project include the development of energy-aware computer systems as the key for cost-effective realization of a large number of high-performance applications running on battery-powered portable platforms and the education and training of young researchers and engineers to be able to address complex and intertwined energy efficiency/performance challenges that arise in the context of designing next-generation information technology products and services.

计算机系统设计者面临的关键问题之一是能源的管理和节约。这一挑战在很多方面都很明显。目标可能是延长由处理器和多个存储器模块、I/O 核心和桥接器组成的计算机系统中的电池寿命。鉴于典型便携式电子系统中的功耗正在迅速增加，而其电池源的重量能量密度的提高速度却慢得多，这一点尤其重要。其他目标可能是限制计算机系统的冷却要求或减少运行大型计算设施的财务负担。本研究的目标是开发系统范围的功耗优化算法和技术，消除浪费或开销，并允许高效利用各种内存和 I/O 设备，同时满足整体性能要求。更准确地说，该项目解决了两个相关问题：动态电压和频率缩放，目标是最小化总系统能耗，以及系统中的全局电源管理，这些模块由可能由其自己的本地电源管理策略管理的模块组成，但必须密切交互相互配合，以实现最大的全系统能源效率。该项目更广泛的影响包括开发能源感知计算机系统，作为经济高效地实现在电池供电便携式平台上运行的大量高性能应用程序的关键，以及对年轻研究人员和工程师进行教育和培训能够解决设计下一代信息技术产品和服务时出现的复杂且相互交织的能源效率/性能挑战。