A preliminarily evaluation of PEACH3: A switching hub for tightly coupled accelerators

Takuya Kuhara, Takahiro Kaneda, Toshihiro Hanawa, Yuetsu Kodama, Taisuke Boku, Hideharu Amano

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

6 Citations (Scopus)

Abstract

Tightly coupled accelerators (TCA) architecture consists of heterogeneous nodes connected to a low-latency high-bandwidth network which allows accelerators to communicate directly. PCI express adaptive communication hub (PEACH) is a switch that connects multiple nodes with the PCIe to build a ring based network in which PCIe packets are directly forwarded. PEACH2, the current version of PEACH uses Altera's field programmable gate array (FPGA) Stratix IV GX and provides four PCIe Gen2 x 8 ports to form a stand-alone network. We developed PEACH3, an advanced version of PEACH2 and its preliminary evaluation result is shown. In PEACH3, the PCIe Gen2 was changed to Gen3 and the internal bus was extended from 128 to 256 bits. PEACH3 is implemented with Altera's Stratix V FPGA which works using a 250MHz clock, and provides four PCIe Gen3 x 8 ports. Stable communication between two nodes through two PCIe Gen3 connected PEACH3 boards was achieved, and communication bandwidth between two nodes was up to 6.9GB/sec, about 87% maximum performance of PCI Gen3 specification.

Original languageEnglish
Title of host publicationProceedings - 2014 2nd International Symposium on Computing and Networking, CANDAR 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages377-381
Number of pages5
ISBN (Electronic)9781479941520
DOIs
Publication statusPublished - 2015 Feb 27
Event2nd International Symposium on Computing and Networking, CANDAR 2014 - Shizuoka, Japan
Duration: 2014 Dec 102014 Dec 12

Publication series

NameProceedings - 2014 2nd International Symposium on Computing and Networking, CANDAR 2014

Other

Other2nd International Symposium on Computing and Networking, CANDAR 2014
CountryJapan
CityShizuoka
Period14/12/1014/12/12

Keywords

  • Accelerators
  • FPGA
  • High speed switching hub
  • PCIe gen3

ASJC Scopus subject areas

  • Computer Networks and Communications

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    Kuhara, T., Kaneda, T., Hanawa, T., Kodama, Y., Boku, T., & Amano, H. (2015). A preliminarily evaluation of PEACH3: A switching hub for tightly coupled accelerators. In Proceedings - 2014 2nd International Symposium on Computing and Networking, CANDAR 2014 (pp. 377-381). [7052213] (Proceedings - 2014 2nd International Symposium on Computing and Networking, CANDAR 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CANDAR.2014.44