一种应用于三维片上网络的动态温度管理机制

A dynamic thermal management scheme applied on 3D-NoC

针对三维片上网络的散热问题,提出了一种基于实时温度感知和自适应路由算法的动态散热管理机制.通过分析流量与温度之间的转换关系,设计了一组应用于路由单元的实时温度感知组件,同时提出一种基于实时温度感知的自适应路由算法,根据系统当前温度情况选择流量均衡或区域回避路由策略,在尽量减小对系统延时影响的前提下控制系统升温.实验表明,该机制在系统延时有限上升的代价下能有效降低系统温度.

To avoid the thermal problem of 3D-NoC, a dynamic thermal management mechanism is proposed. A temperature sensor combined with hardware monitoring and calculation software is designed, and two-phase adaptive routing algorithm is proposed. The routing algorithm makes full use of the bandwidth when the temperature is under the threshold, and avoids the hot spot when the region exceeds the temperature limits. Experimental results show that the mechanism achieves effective temperature control of the system in a limited delay overhead.