Runtime power management is a technology that dynamically controls the system power consumption during system operation according to the system load and the corresponding strategy.The current Sunway domestic processor platform fails to implement this feature and only supports manual adjustment of processor frequency.In order to solve this problem,this paper implements a runtime power management model(swDFCS)on the Sunway platform,which can adjust the processor frequency and number of cores in real time according to load changes,reducing energy consumption while ensuring performance requirements.The experimental data show that the model is able to reduce energy consumption by 15%with a very small performance loss,which provides a reference for the research on the collaborative power management of software and hardware under the domestic Sunway platform and improves the adaptability of the Sunway platformin low-power scenarios.
关键词
系统功耗/处理器频率/运行时电源管理/swDFCS/申威平台
Key words
system power consumption/processor frequency/runtime power management/swDFCS/Sunway platform
维普
万方数据