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Publication Details for Inproceedings "Timing Analysis on a Processor with Temperature-Controlled Speed Scaling"

 

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Authors: Pratyush Kumar, Lothar Thiele
Group: Computer Engineering
Type: Inproceedings
Title: Timing Analysis on a Processor with Temperature-Controlled Speed Scaling
Year: 2012
Month: April
Pub-Key: KT12a
Book Titel: In Proceedings of the 18th IEEE Real-Time and Embedded Technology and Applications Symposium
Pages: 77-87
Keywords: MPA, RTC, Thermal, Feedback control
Publisher: IEEE
Abstract: Several recent works consider the problem of temperature-constrained scheduling of jobs. In such attempts, speed of the processor and the execution of jobs is software- controlled such that temperature and performance constraints are met. An alternative approach is to use measurements from temperature sensors to actuate the speed of the processor as a feedback control loop. Though such a solution explicitly and independently meets the thermal constraints, the analysis of the real-time properties of tasks served by such a processor is not straightforward. In this paper, we study this problem for a variable stream of jobs characterized by an input arrival rate. We show that an intuitive notion of monotonicity extends to such a processor. Using this property, we present an analytical technique to determine the worst-case delay suffered by jobs. The presented technique efficiently and tightly determines the delay as a function of the initial temperature. The simplicity of this analysis motivates further analysis and mainstream use of such systems.
Location: Beijing, China
Resources: [BibTeX] [Paper as PDF]

 

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