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A Reconfigurable Branch Predictor for Spatial Computing Architectures

Published: 10 September 2020 Publication History

Abstract

Branch predictors are widely used in general purpose processors to deal with control flows. However, control flows are spatially dispersed in spatial computing architectures and traditional branch predictors are not so much effective. This paper proposes a novel branch predictor that can be configured into different prediction modes according to the control flow characteristics. Experiment results show that the proposed predictor exceeds all the traditional predictors in terms of accuracy on a coarsegrained reconfigurable array platform. It improves the prediction accuracy by 5.09% compared to a state-of-the-art technique in the cost of slight area increment.

References

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R. Prabhakar, Y. Zhang, D. Koeplinger, M. Feldman, T. Zhao, et al. 2017. Plasticine: a reconfigurable architecture for parallel patterns. In ACM/IEEE International Symposium on Computer Architecture, 389--402.
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Liu L., Wang D., Zhu M., Wang Y., Yin S., et al. 2013. An energy-efficient coarse-grained dynamically reconfigurable fabric for multiple-standard video decoding applications. Proceedings of the IEEE 2013 Custom Integrated Circuits Conference.
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    ICDSP '20: Proceedings of the 2020 4th International Conference on Digital Signal Processing
    June 2020
    383 pages
    ISBN:9781450376877
    DOI:10.1145/3408127
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than the author(s) must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected].

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    • University of Electronic Science and Technology of China: University of Electronic Science and Technology of China

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    Association for Computing Machinery

    New York, NY, United States

    Publication History

    Published: 10 September 2020

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    Author Tags

    1. Branch predictor
    2. CGRA
    3. reconfigurable
    4. spatial computing

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