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arXiv 0902.1260cs.DS
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流量和能量的非透视速度标度

Nonclairvoyant Speed Scaling for Flow and Energy

Ho-Leung Chan, Jeff Edmonds, Tak-Wah Lam, Lap-Kei Lee, Alberto Marchetti-Spaccamela, Kirk Pruhs

摘要:

我们研究在线非透视速度缩放,以最大限度地减少总流动时间加能量。我们首先考虑传统模型,其中幂函数为P(s)= s\^ \propto。我们给出了一个非透视算法,证明是O(\propto 3)-竞争。然后,我们证明了一个Ω(\propto \^(1/3-ε))下界的竞争比的任何nonclairvoyant算法。我们还证明了存在幂函数,对于这些幂函数,没有非透视算法可以是O(1)-竞争的。

英文摘要:

We study online nonclairvoyant speed scaling to minimize total flow time plus energy. We first consider the traditional model where the power function is P (s) = s\^\propto. We give a nonclairvoyant algorithm that is shown to be O(\propto\^3)-competitive. We then show an Ω(\propto\^(1/3-ε)) lower bound on the competitive ratio of any nonclairvoyant algorithm. We also show that there are power functions for which no nonclairvoyant algorithm can be O(1)-competitive.

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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