An Approximation Algorithm for Energy-Efficient Scheduling on A Chip Multiprocessor

Chuan-Yue Yang (1) , Jian-Jia Chen (1) , Tei-Wei Kuo (1)

1 Dep. of Computer Science and Information Engineering

In the recent decade, voltage scaling has become an attractive feature for many system component designs. In this paper, we consider energy-efficient real-time task scheduling over a chip multiprocessor architecture. The objective is to schedule a set of frame-based tasks with the minimum energy consumption, where all tasks are ready at time 0 and share a common deadline. We show that such a minimization problem is NP-hard and then propose a 2 .371-approximation algorithm. The strength of the proposed algorithm was demonstrated by a series of simulations, for which near optimal results were obtained.

Domaines: Architectures Matérielles [cs.AR]; Electronique

Chuan-Yue Yang, Jian-Jia Chen, Tei-Wei Kuo. An Approximation Algorithm for Energy-Efficient Scheduling on A Chip Multiprocessor. DATE'05, Mar 2005, Munich, Germany. pp.468-473. ⟨hal-00181556⟩