A Case for Low-Latency Network-on-Chip using Compression Routers

Naoya Niwa, Yoshiya Shikama, Hideharu Amano, Michihiro Koibuchi

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

Abstract

The communication latency is a primary concern for designing Network-on-Chips (NoCs) since it significantly affects the parallel application performance on a many-core computer system. To reduce the communication latency, we propose an on-chip router that (de)compresses the contents of an incoming packet before completing switch arbitration. The compression router thus has no latency penalty for the compression operation, whereas it shortens a packet length that decreases the network injection-and-ejection latency. Evaluation results show that the compression router improves 7.7% of the parallel application performance (IS, CG, FT, and TSP) and 49% of the effective network throughput by 1.8 compression ratio on NoC. The drawback is that the router area and its energy consumption per bit increase by 0.12mm2 and 1.4 times compared to the conventional virtual-channel router.

Original languageEnglish
Title of host publicationProceedings - 29th Euromicro International Conference on Parallel, Distributed and Network-Based Processing, PDP 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages134-142
Number of pages9
ISBN (Electronic)9781665414555
DOIs
Publication statusPublished - 2021 Mar
Event29th Euromicro International Conference on Parallel, Distributed and Network-Based Processing, PDP 2021 - Virtual, Valladolid, Spain
Duration: 2021 Mar 102021 Mar 12

Publication series

NameProceedings - 29th Euromicro International Conference on Parallel, Distributed and Network-Based Processing, PDP 2021

Conference

Conference29th Euromicro International Conference on Parallel, Distributed and Network-Based Processing, PDP 2021
Country/TerritorySpain
CityVirtual, Valladolid
Period21/3/1021/3/12

Keywords

  • Lossy data compression
  • Network on Chips
  • Router Architecture

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Information Systems

Fingerprint

Dive into the research topics of 'A Case for Low-Latency Network-on-Chip using Compression Routers'. Together they form a unique fingerprint.

Cite this