Implementing a Multi-ejection Switch and Making the Use of Multiple Lanes in a Circuit-switched Multi-FPGA System

Kohei Ito, Kensuke Iizuka, Kazuei Hironaka, Yao Hu, Michihiro Koibuchi, Hideharu Amano

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

1 Citation (Scopus)

Abstract

A multi-FPGA System called Flow-in-Cloud (FiC) is currently being developed as an accelerator of Multi-access Edge Computing (MEC), which is one of the core 5G technologies. FiC is a system that consists of multiple mid-range FPGAs tightly connected by high-speed serial links. Since timing-critical jobs are assumed to be executed in MEC, a circuit-switched network with static time-division multiplexing (STDM) switches has been implemented on FiC. In this paper, we investigate the methods to enhance the interconnection performance of FiC. We proposed the link aggregation and the slot distribution for making the use of multiple lanes naturally supported with Aurora-IP and economical FireFly cables. We evaluated combinations of the techniques by using three practical applications on a real FiC prototype with 24 boards. When the number of slots is large and the number of packets is small, the slot distribution is sometimes more effective, while the link aggregation is superior for other most cases. As a result, the communication performance could be improved up to 3.01 times by using four lanes. Furthermore, we found that application designers can use enough resources even using four lanes and the link aggregation is better than the slot distribution.

Original languageEnglish
Title of host publicationProceedings - 2020 8th International Symposium on Computing and Networking Workshops, CANDARW 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages211-217
Number of pages7
ISBN (Electronic)9781728199191
DOIs
Publication statusPublished - 2020 Nov
Event8th International Symposium on Computing and Networking Workshops, CANDARW 2020 - Virtual, Naha, Japan
Duration: 2020 Nov 242020 Nov 27

Publication series

NameProceedings - 2020 8th International Symposium on Computing and Networking Workshops, CANDARW 2020

Conference

Conference8th International Symposium on Computing and Networking Workshops, CANDARW 2020
CountryJapan
CityVirtual, Naha
Period20/11/2420/11/27

Keywords

  • circuit-switched network
  • multi-FPGA
  • multi-FPGA communication
  • static time-division multiplexing switch
  • STDM switch

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications
  • Hardware and Architecture
  • Computational Mathematics
  • Control and Optimization

Fingerprint Dive into the research topics of 'Implementing a Multi-ejection Switch and Making the Use of Multiple Lanes in a Circuit-switched Multi-FPGA System'. Together they form a unique fingerprint.

Cite this