Home /Journal of Low Power Electronics, Volume 4, Number 1
Energy-Aware Task Scheduling and Dynamic Voltage Scaling in a Real-Time System
Authors:Rong, Peng; Pedram, Massoud
Source:Journal of Low Power Electronics, Volume 4, Number 1, April 2008, pp.1-10(10)
Publisher:American Scientific Publishers
This paper presents a solution to the problem of minimizing energy consumption of a computer system performing periodic hard real-time tasks with precedence constraints. In the proposed approach, dynamic power management and voltage scaling techniques are combined to reduce the energy consumption of the CPU and devices. The optimization problem is initially formulated as an integer programming problem. Next, a three-phase heuristic solution, which integrates power management, task scheduling and task voltage assignment, is provided. Experimental results show that the proposed approach outperforms existing methods by an average of 18% in terms of the system-wide energy savings.
Keywords:DYNAMIC VOLTAGE SCALING;POWER MANAGEMENT;REAL-TIME SYSTEMS;TASK SCHEDULING
Document Type: Research Article
Publication date:01 April 2008
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- The electronic systems that can operate with very low power are of great technological interest. The growing research activity in the field of low power electronics requires a forum for rapid dissemination of important results: Journal of Low Power Electronics (JOLPE) is that international forum which offers scientists and engineers timely, peer-reviewed research in this field.
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