Quasi-Static Voltage Scaling for Energy Minimization With Time Constraints

被引：13

作者：

Andrei, Alexandru ^{[1
]}

Eles, Petru ^{[2
]}

Jovanovic, Olivera ^{[3
]}

Schmitz, Marcus ^{[4
]}

Ogniewski, Jens ^{[5
]}

Peng, Zebo ^{[2
]}

机构：

[1] Ericsson AB, S-58112 Linkoping, Sweden

[2] Linkoping Univ, Dept Comp & Informat Sci, S-58183 Linkoping, Sweden

[3] Univ Dortmund, Dept Comp Sci 12, D-44221 Dortmund, Germany

[4] Diesel Syst Commercial Vehicles Robert BOSCH GmbH, D-70469 Stuttgart, Germany

[5] Linkoping Univ, Dept Elect Engn, S-58183 Linkoping, Sweden

来源：

IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS | 2011年 / 19卷 / 01期

关键词：

Energy minimization; online voltage scaling; quasi-static voltage scaling (QSVS); real-time systems; voltage scaling; TASK;

D O I：

10.1109/TVLSI.2009.2030199

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

Supply voltage scaling and adaptive body biasing (ABB) are important techniques that help to reduce the energy dissipation of embedded systems. This is achieved by dynamically adjusting the voltage and performance settings according to the application needs. In order to take full advantage of slack that arises from variations in the execution time, it is important to recalculate the voltage (performance) settings during runtime, i.e., online. However, optimal voltage scaling algorithms are computationally expensive, and thus, if used online, significantly hamper the possible energy savings. To overcome the online complexity, we propose a quasi-static voltage scaling (QSVS) scheme, with a constant online time complexity O(1). This allows to increase the exploitable slack as well as to avoid the energy dissipated due to online recalculation of the voltage settings.

引用

页码：10 / 23

页数：14

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