NDLI: Scheduling with dynamic voltage/speed adjustment using slack reclamation in multi-processor real-time systems

Content Provider	IEEE Xplore Digital Library
Author	Zhu, D. Melhem, R. Childers, B.
Copyright Year	2001
Description	Author affiliation: Dept. of Comput. Sci., Pittsburgh Univ., PA, USA (Zhu, D.; Melhem, R.; Childers, B.)
Abstract	The power consumption of modern high-performance processors is becoming a major concern because it leads to increased heat dissipation and decreased reliability. While many techniques have been proposed to reduce power consumption for uni-processors, there has been considerably less work on multi-processor systems. In this paper we focus on power-aware scheduling for multi-processor real-time systems. Based on the idea of slack sharing among processors, we propose two novel scheduling algorithms for task sets with and without precedence constraints. These scheduling techniques reclaim the time unused by a task to reduce the execution speed of future tasks, and thus reduce the total energy consumption of the system. Simulation results indicate that our algorithms achieve up to 60% energy savings on multi-processor systems with variable voltage processors.
Sponsorship	IEEE Comput. Soc. Tech. Committee on Real-Time Syst. IEEE Univ. York
Starting Page	84
Ending Page	94
File Size	1010137
Page Count	11
File Format	PDF
ISBN	0769514200
DOI	10.1109/REAL.2001.990599
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-12-03
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Dynamic scheduling Voltage Energy consumption Power system reliability Energy management Processor scheduling Timing Real time systems Power system management Scheduling algorithm
Content Type	Text
Resource Type	Article

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