Variable pipeline structure for coarse grained reconfigurable array CMA

Naoki Ando, Koichiro Masuyama, Hayate Okuhara, Hideharu Amano

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Cool mega-array (CMA) is a kind of coarse grained reconfigurable architecture (CGRA) which has shown its ability of ultra low-power computation. However, as CMA completely eliminates clock trees and registers, the performance improvement has been limited. In this paper, we introduce a variable pipeline structure to CMA with the minimum essential registers to provide more wide trade-off between performance and energy. Comparing with the baseline CMA (non-pipelined structure), an average of 77% improvement for performance was achieved with a small power overhead. Moreover, the energy efficiency was 1461 MOPS / mW at most which was about 2× that of the baseline structure. The best pipeline depth for an arbitrary energy-performance trade-off became selectable with only 11% area overhead.

Original languageEnglish
Title of host publicationProceedings of the 2016 International Conference on Field-Programmable Technology, FPT 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages217-220
Number of pages4
ISBN (Electronic)9781509056026
DOIs
Publication statusPublished - 2017 May 15
Event15th International Conference on Field-Programmable Technology, FPT 2016 - Xi'an, China
Duration: 2016 Dec 72016 Dec 9

Other

Other15th International Conference on Field-Programmable Technology, FPT 2016
CountryChina
CityXi'an
Period16/12/716/12/9

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ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality
  • Instrumentation
  • Hardware and Architecture

Cite this

Ando, N., Masuyama, K., Okuhara, H., & Amano, H. (2017). Variable pipeline structure for coarse grained reconfigurable array CMA. In Proceedings of the 2016 International Conference on Field-Programmable Technology, FPT 2016 (pp. 217-220). [7929537] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/FPT.2016.7929537