arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2003.11081eess.SYcs.SY
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异构多处理器功耗-温度动态特性分析与控制

Analysis and Control of Power-Temperature Dynamics in Heterogeneous Multiprocessors

Ganapati Bhat, Suat Gumussoy, Umit Y. Ogras

摘要:

几乎所有的电子系统都试图优化更高性能和更低功耗之间的基本权衡。后者在移动计算系统中变得至关重要,例如依赖被动冷却的智能手机。否则,集中在一个小区域的热量会使结温和表皮温度升高。高结温会降低可靠性,而表皮温度会降低用户体验。因此,迫切需要对功耗-温度动态和预测性热管理算法进行正式分析。本文提出了多处理器系统的理论功率-温度分析,该系统被建模为多输入多输出动态系统。我们分析的条件下,系统收敛到一个稳定的稳态温度。然后,我们使用这些模型来设计一个控制算法,在不影响应用程序性能的情况下管理系统的温度。Odroid-XU 3板上的实验表明,与默认的热调节器相比,该控制算法能够以最小的性能损失调节温度。

英文摘要:

Virtually all electronic systems try to optimize a fundamental trade-off between higher performance and lower power consumption. The latter becomes critical in mobile computing systems, such as smartphones, which rely on passive cooling. Otherwise, the heat concentrated in a small area drives both the junction and skin temperatures up. High junction temperatures degrade the reliability, while skin temperature deteriorates the user experience. Therefore, there is a strong need for a formal analysis of power consumption-temperature dynamics and predictive thermal management algorithms. This paper presents a theoretical power-temperature analysis of multiprocessor systems, which are modeled as multi-input multi-output dynamic systems. We analyze the conditions under which the system converges to a stable steady-state temperature. Then, we use these models to design a control algorithm that manages the temperature of the system without affecting the performance of the application. Experiments on the Odroid-XU3 board show that the control algorithm is able to regulate the temperature with a minimal loss in performance when compared to the default thermal governors.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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