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Energy Efficient High Performance Processors pp 1–55Cite as

Power Management of Modern Processors

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Abstract

Recent technology advances have resulted in power being the major concern for digital design. In this chapter, we give introduction to power management at modern processors and present the parameters that affect the energy and power of digital circuits. The state of the art in power management methodology is examined and we present energy efficiency metrics, such as the energy delay. We examine how modern processors utilize features, such as clock gating, power gating and DVFS in order to reduce the overall energy consumption of the platform while maintaining high performance. Finally, we present state-of-the-art techniques that are used today in modern processors.

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Notes

  1. 1.

    The minimum gate-to-source voltage differential that is needed to create a conducting path between the source and drain terminals.

  2. 2.

    Uncore is a term used by Intel to describe the functions of a microprocessor that are not in the core or Graphics, but which must be closely connected to the core to achieve high performance, for example the memory controller.

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Authors and Affiliations

  1. School of Computer Science and Engineering, Nanyang Technological University, Singapore, Singapore

    Jawad Haj-Yahya

  2. Department of Computer Science Department, Technion—Israel Institute of Technology, Haifa, Israel

    Avi Mendelson

  3. Department of Computer Science, University of Haifa, Haifa, Israel

    Yosi Ben Asher

  4. School of Computer Science and Engineering, Nanyang Technological University, Singapore, Singapore

    Anupam Chattopadhyay

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  1. Jawad Haj-Yahya
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Correspondence to Jawad Haj-Yahya .

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Haj-Yahya, J., Mendelson, A., Ben Asher, Y., Chattopadhyay, A. (2018). Power Management of Modern Processors. In: Energy Efficient High Performance Processors. Computer Architecture and Design Methodologies. Springer, Singapore. https://doi.org/10.1007/978-981-10-8554-3_1

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  • DOI: https://doi.org/10.1007/978-981-10-8554-3_1

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