Temperature regulation in multicore processors using adjustable-gain integral controllers
Temperature regulation in multicore processors using adjustable-gain integral controllers
复制标题
使用可调增益积分控制器进行多核处理器的温度调节
DOI：
10.1109/cca.2015.7320717
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Y. Wardi
中科院分区：
文献类型：
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作者：
Karthik Rao;William J. Song;S. Yalamanchili;Y. Wardi
本文通过动态电压频率缩放考虑了多核心处理器中温度调节的问题。我们提出了一项反馈定律，该法律基于具有可调节增益的积分控制器，该反馈定律旨在在模型不确定性，随时间变化的工厂和紧密的计算限制约束方面快速跟踪收敛。此外，与先前的作品不同，我们考虑了一种非线性，时变的植物模型，该模型将精确性交易以进行简单有效的在线计算。循环级，完整的系统模拟器实现和评估说明了给定温度参考值的快速，准确跟踪，并与固定增益控制器进行了比较。
This paper considers the problem of temperature regulation in multicore processors by dynamic voltage-frequency scaling. We propose a feedback law that is based on an integral controller with adjustable gain, designed for fast tracking convergence in the face of model uncertainties, time-varying plants, and tight computing-timing constraints. Moreover, unlike prior works we consider a nonlinear, time-varying plant model that trades off precision for simple and efficient on-line computations. Cycle-level, full system simulator implementation and evaluation illustrates fast and accurate tracking of given temperature reference values, and compares favorably with fixed-gain controllers.