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2019 | OriginalPaper | Chapter

18. Approximate Ultra-Low Voltage Many-Core Processor Design

Authors : Nam Sung Kim, Ulya R. Karpuzcu

Published in: Approximate Circuits

Publisher: Springer International Publishing

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Abstract

Computing at ultra-low voltages can increase the energy efficiency significantly, however, operating frequency and resilience to errors degrade as the operating voltage reaches the transistor threshold voltage. More parallelism can help prevent degradation in throughput performance arising from the lower frequency. More parallelism, however, makes more components subject to errors, which exacerbates the already intensified vulnerability to errors. This chapter is all about how to exploit the intrinsic noise tolerance of emerging R(ecognition), M(ining), and S(ynthesis) applications in addressing degraded resilience at ultra-low voltages by embracing errors.

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previous chapter Approximate Systems: Synergistically Approximating Sensing, Computing, Memory, and Communication Subsystems for Energy Efficiency

next chapter Approximate CPU and GPU Design Using Emerging Memory Technologies

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Title: Approximate Ultra-Low Voltage Many-Core Processor Design
Authors: Nam Sung Kim
Ulya R. Karpuzcu
Publisher: Springer International Publishing
Book: Approximate Circuits
Print ISBN: 978-3-319-99321-8

Electronic ISBN: 978-3-319-99322-5

Copyright Year: 2019
DOI: https://doi.org/10.1007/978-3-319-99322-5_18