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。这一挑战在许多方面都很明显。目标可能是延长由处理器和许多内存模块、I/O内核和桥接器组成的计算机系统的电池寿命。这一点尤其重要，因为在一个典型的便携式电子系统中，功耗正在迅速增加，而其电池源的重力能量密度却在以慢得多的速度提高。其他目标可能是限制计算机系统的冷却要求或减少操作大型计算设施的经济负担。本研究的目标是开发系统范围的功率优化算法和技术，以消除浪费或开销，并允许在满足总体性能要求的同时节能地使用各种内存和I/O设备。更准确地说，该项目解决了两个相关的问题：动态电压和频率缩放，目标是最小化系统总能耗，以及系统中的全局电源管理，该系统由模块组成，这些模块可能由它们自己的本地电源管理策略管理，但必须密切相互作用，以产生最大的系统范围的能源效率。该项目的更广泛影响包括能源感知计算机系统的发展，作为在电池供电的便携式平台上运行大量高性能应用程序的成本效益实现的关键，以及年轻研究人员和工程师的教育和培训，以便能够解决设计下一代信息技术产品和服务时出现的复杂和相互交织的能源效率/性能挑战。