Evaluating Celerity: A 16-nm 695 Giga-RISC-V Instructions/s Manycore Processor with Synthesizable PLL

  • Austin Rovinski*
  • , Bandhav Veluri
  • , Anuj Rao
  • , Tutu Ajayi
  • , Julian Puscar
  • , Steve Dai
  • , Ritchie Zhao
  • , Dustin Richmond
  • , Zhiru Zhang
  • , Ian Galton
  • , Christopher Batten
  • , Chun Zhao
  • , Michael B. Taylor
  • , Ronald G. Dreslinski
  • , Khalid Al-Hawaj
  • , Paul Gao
  • , Shaolin Xie
  • , Christopher Torng
  • , Scott Davidson
  • , Aporva Amarnath
  • Luis Vega
*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

This letter presents a 16-nm 496-core RISC-V network-on-chip (NoC). The mesh achieves 1.4 GHz at 0.98 V, yielding a peak throughput of 695 Giga RISC-V instructions/s (GRVIS), a peak energy efficiency of 314.89 GRVIS/W, and a record 825 320 CoreMark benchmark score. Unlike previously reported [1], this new score was obtained without modifying the core benchmark code. The main feature is the NoC architecture, which uses only 1881~\mu \text{m}^{2} per router node, enables highly scalable and dense compute, and provides up to 361 Tb/s of aggregate bandwidth.

Original languageEnglish
Article number8903494
Pages (from-to)289-292
Number of pages4
JournalIEEE Solid-State Circuits Letters
Volume2
Issue number12
DOIs
StatePublished - Dec 2019
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2018 IEEE.

Keywords

  • Celerity
  • RISC-V
  • manycore
  • network-on-chip (NoC)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Evaluating Celerity: A 16-nm 695 Giga-RISC-V Instructions/s Manycore Processor with Synthesizable PLL'. Together they form a unique fingerprint.

Cite this