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移动设备中异构处理器平台的能量优化设计

Energy optimization on heterogeneous processor platform in mobile device
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摘要 由于移动设备含有多个传感器,系统往往需要运行连续的感知任务。移动设备中的应用处理器能有效地运行计算密集型任务,而对于连续的感知任务将消耗大量的能量。为了提高移动设备的能量利用率,在包含应用处理器和低功耗处理器的异构处理器上提出了一种异构处理器平台能量优化方法。首先,根据处理器平台的实际能耗和理想能耗提出了能量比例因子。其次,提出了含有两个异构处理器平台的应用程序划分方法。最后,通过模拟器实验验证了该方法的有效性。模拟实验表明,由于将感知任务迁移到低功耗处理器上运行,所提出的优化方法能大大提高移动设备的能量利用效率。 Mobile device contains multiple sensors,so the system usually executes continuous sensing tasks.The application processor in mobile devices can handle computation intensive tasks efficiently,but will consume much more energy for continuous sensing tasks.In order to reduce the energy consumption of mobile devices,this paper proposes an energy optimization approach on a heterogeneous processor platform containing application processor and low power processor.Firstly,the energy proportion factor is proposed according to the real energy consumption and ideal energy consumption.Secondly,a task partition approach is proposed for application in a two-processor heterogeneous platform.Finally,we validate the efficiency of the proposed approach via a simulator.The simulation experiments show that the proposed optimized approach can improve the energy consumption a lot by offloading sensing tasks to the low power processor.
出处 《电子技术应用》 北大核心 2014年第10期138-141,共4页 Application of Electronic Technique
基金 常熟市卫生局资助性项目(csws201303)
关键词 移动设备 异构处理器平台 能源优化 能量比例因子 mobile device heterogeneous processor platform energy optimization energy proportion factor
作者简介 夏开建(1983-),男,硕士,工程师,主要研究方向:图像处理、系统分析、医学信息学等.| 任晓刚(1981-),男,工程师,主要研究方向:医学信息学.| 吴玥(1981-),女,工程师,主要研究方向:医学信息学.
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参考文献9

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