CAREER: Cognitive Power Management for Memory Dominated Mobile Devices

本研究的目的是为记忆主导型移动设备设计新的认知功率管理技术，以利用无线信道的可变性质。该方法基于根据应用程序对硬件引起的错误的时变容错来重新定义内存块的运行时体系结构容错。这允许通过在该时刻利用硬件单元的应用的需要来动态地管理可接受性能的裕度。这项工作的智力价值在于使设计师能够在设计周期的早期抽象出以存储器为主的设备的功率效率和错误意识的概念，这对整体结构的成本、性能和可靠性属性具有重大影响。该项目的多学科性质，横跨理论、电路、系统和实验工作，创造了一个令人兴奋的框架，让学生、教育工作者和社区参与进来。拟议的研究和教育计划的重点是扩大调查人员参与旨在吸引本科生(特别是女学生)和来自代表性不足群体的少数族裔学生进入工程学的项目。最后，由于节能移动设备正迅速普及到现代社会的各个方面，包括政府、企业和私人生活，这项工作在加快廉价和节能设备的快速部署方面具有特别重要的意义。

The objective of this research is to design new cognitive power management techniques for memory dominated mobile devices that exploit the variable nature of the wireless channel. The approach is based on redefining the run-time architectural error tolerance of memory blocks according to the time varying tolerance of the application to hardware induced errors. This allows the margin of acceptable performance to be dynamically managed by the needs of the application utilizing the hardware unit at that instant in time. The intellectual merit of the work lies in enabling designers to abstract the concepts of power efficiency and error awareness for memory dominated devices early in the design cycle, with significant implications on the cost, performance and reliability attributes of the overall structure. The multidisciplinary nature of the project, which spans theoretical, circuit, system and experimental work, creates an exciting framework to engage students, educators and the community. The proposed research and education plan places an emphasis on expanding the engagement of the investigator in programs designed to attract undergraduates (particularly female students) and minority students from underrepresented groups into engineering. Finally, since power conscious mobile devices are rapidly becoming ubiquitous in every aspect of modern day society spanning government, corporate and private life, this work has particular significance in accelerating the rapid deployment of inexpensive and energy-efficient devices.