C4: An FPGA-based compression algorithm for expether

Hideki Shimura, Hiroyuki Noda, Hideharu Amano

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

Abstract

PCI Express (PCIe) has been widely used as an I/O bus connecting CPU and GPUs. In order to resolve the limitation of the number of PCIe ports, NEC Corporation developed ExpEther for expanding PCIe to Ethernet. Since Ethernet often becomes a bottleneck of communication, a conventional research proposed to implement a compression/decompression mechanism by using existing data compression mechanisms to reduce the size of data transferring on Ethernet. However, data compression mechanisms used in the research were only efficient for a limited input data pattern. In this paper, we proposed a novel data compression algorithm called C4, and implemented it on Xilinx Virtex-7 FPGA as an experimental environment of ExpEther. As a result, the proposed method can reduce the transfer time by 52.5%, superior to 49.7% with the conventional method. According to the evaluation of the hardware resource utilization rate, we showed that the proposed algorithm can be implemented in the FPGA used in the ExpEther NIC.

Original languageEnglish
Title of host publicationProceedings - 2018 6th International Symposium on Computing and Networking Workshops, CANDARW 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages356-362
Number of pages7
ISBN (Electronic)9781538691847
DOIs
Publication statusPublished - 2018 Dec 26
Event6th International Symposium on Computing and Networking Workshops, CANDARW 2018 - Takayama, Japan
Duration: 2018 Nov 272018 Nov 30

Publication series

NameProceedings - 2018 6th International Symposium on Computing and Networking Workshops, CANDARW 2018

Conference

Conference6th International Symposium on Computing and Networking Workshops, CANDARW 2018
CountryJapan
CityTakayama
Period18/11/2718/11/30

Keywords

  • Compression algorithm
  • ExpEther
  • FPGA

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Statistics, Probability and Uncertainty
  • Computer Science Applications

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  • Cite this

    Shimura, H., Noda, H., & Amano, H. (2018). C4: An FPGA-based compression algorithm for expether. In Proceedings - 2018 6th International Symposium on Computing and Networking Workshops, CANDARW 2018 (pp. 356-362). [8590926] (Proceedings - 2018 6th International Symposium on Computing and Networking Workshops, CANDARW 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CANDARW.2018.00072