What Hill-Marty model learn from and break through Amdahl's law?

Authors:
Erlin Yao;Yungang Bao;Mingyu Chen
Affiliations:
State Key Laboratory of Computer Architecture, Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China;State Key Laboratory of Computer Architecture, Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China;State Key Laboratory of Computer Architecture, Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China
Venue:
Information Processing Letters
Year:
2011

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Abstract

Chip multiprocessors (CMPs) or multicores are emerging as the dominant computing platform. Recently, Hill and Marty developed the model which augmenting Amdahl@?s law to the multicore hardware, and this model has received great attention. However, there are still the following fundamental problems in the perspective of theory remains unsolved, such as: How general is the observation in Hill-Marty model, does it only hold for some specific architectures? As a corollary of Amdahl@?s law, what does Hill-Marty model learn from and break through Amdahl@?s law? This paper investigates an analytical and quantitative analysis to these problems, the obtained results could provide computer architects with a better understanding of multicore scalability.