基于蓝牙4.0的GPU集群功耗测量系统设计

Design of GPU cluster power consumption measurement system based on Bluetooth 4.0

为了给GPU集群低功耗优化研究提供依据,在蓝牙4.0技术的基础上,设计了一种无线GPU集群功耗测量系统。给出系统的总体架构和硬件设计方案,详细介绍了电流传感器ACS711的测量原理,并针对蓝牙无线传感器网络中节点对耗电量的高要求,提出了一种基于RSSI的动态节能机制;然后对系统的性能参数进行了实验分析,其丢包率和测量误差分别为0.01%和0.65%;最终将系统部署到"大规模3G视频分析GPU集群"上进行实际测试研究。实验结果表明,系统性能稳定,丢包率低,测量误差小,能准确测量GPU集群的实时功耗。

To give the basis for the study of GPU cluster low power consumption optimization,a wireless GPU cluster power consumption measurement system is designed based on Bluetooth 4.0 technology.The system＇s overall structure and hardware design scheme are presented.And the current sensor ACS711 measurement principle is introduced in detail.In addition,to achieve the higher requirement for Bluetooth wireless sensor network node power consumption,a dynamic energy saving mechanism based on RSSI is presented.Then the performance of the system is analyzed in the experiment.The packet loss rate is 0.01％,and the measurement error is 0.65％.At last,the system is deployed to ＂large-scale video quality of 3G GPU cluster＂ for the actual measurement and study.The results show that the system is stable,low packet loss rate and small measurement error,and it can accurately measure the real-time power of GPU cluster.