On Estimating Optimal Performance of CPU Dynamic Thermal Management

On Estimating Optimal Performance of CPU Dynamic Thermal Management
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评估CPU动态热管理的最佳性能

DOI:
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发表时间:
2003
影响因子:
2.3
通讯作者:
D. Rudoy
D. Rudoy
中科院分区:
计算机科学3区
文献类型:
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作者:
Aviad Cohen;L. Finkelstein;A. Mendelson;R. Ronen;D. Rudoy

文献摘要

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在本文中,我们专注于动态热管理(DTM)的策略,使用动态电压缩放(DVS)的功率控制。我们进行了有针对性的理论分析来估计最优策略,并表明两个事实:(1)当初始温度和极限温度之间存在差距时,最好从高频率(尽管不一定是最大的)开始,然后按指数规律降低频率,直到达到极限温度;(2)当接近极限温度时,最佳策略是保持在那里。最后,我们利用最优策略所表现出的模式,对现有的一些DTM技术进行了分析。
In this paper we focus on dynamic thermal management(DTM) strategies that use dynamic voltage scaling (DVS)for power control. We perform a theoretical analysis targeted atestimating the optimal strategy, and show two facts: (1) whenthere is a gap between the initial and the limit temperatures,it is best to start with a high (though not necessarily maximal)frequency and decrease it exponentially until the limit temperatureis reached; (2) when being close to the limit temperature,the best strategy is to stay there. We use the patterns exhibitedby the optimal strategy in order to analyze some existing DTMtechniques.