Energy-efficient real-time scheduling of multimedia tasks on multi-core processors

Authors:
Yi-Hung Wei;Chuan-Yue Yang;Tei-Wei Kuo;Shih-Hao Hung;Yuan-Hua Chu
Affiliations:
National Taiwan University, Taiwan;National Taiwan University, Taiwan;National Taiwan University, Taiwan;National Taiwan University, Taiwan;SoC Technology Center, Industrial Technology Research Institute, Taiwan
Venue:
Proceedings of the 2010 ACM Symposium on Applied Computing
Year:
2010

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Abstract

In recent years, various multi-core architectures have become popular selections for the designs of mobile platforms. With the strong computing demands from many multimedia applications, how to energy-efficiently utilize the computing power of mobile platforms without violations of timing constraints has become a critical design problem. In this paper, a data-partitioning-based approach is proposed to explore the parallelism of multimedia workload processing over multiple cores. Dynamic voltage scaling and dynamic power management strategies are both considered in the dynamic scaling of the computing power of cores and the adjustment of the set of active cores, respectively. The practicability and the energy efficiency of the proposed algorithms were evaluated by a series of experiments and simulations, for which we have encouraging results.