Performance evaluation on low-latency Communication mechanism of DIMMnet-2

  • Authors:
  • Akira Kitamura;Yasuo Miyabe;Tomotaka Miyashiro;Noboru Tanabe;Hironori Nakajo;Hideharu Amano

  • Affiliations:
  • Faculty of Science and Technology Keio University, Kohoku-ku, Yokohama, Japan;Faculty of Science and Technology Keio University, Kohoku-ku, Yokohama, Japan;Faculty of Science and Technology Keio University, Kohoku-ku, Yokohama, Japan;Corporate Research and Development Center, Toshiba;Tokyo University of Agriculture and Technology;Faculty of Science and Technology Keio University, Kohoku-ku, Yokohama, Japan

  • Venue:
  • PDCN'07 Proceedings of the 25th conference on Proceedings of the 25th IASTED International Multi-Conference: parallel and distributed computing and networks
  • Year:
  • 2007

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Abstract

By recent performance improvement of interconnection networks for PC cluster, a standard I/O bus which connects network interface becomes the performance bottleneck. DIMMnet is a network interface which can solve the problem by using the memory bus instead of PCI bus or other I/O buses. The second generation network interface DIMMnet-2 can be connected with DDR-SDRAM slot. Although the current board is a prototype using an FPGA, using BOTF which is low latency PIO communication method, the bidirectional bandwidth reaches about 1087.56 MByte/s, and the minimum unidirectional latency is about 0.632 µs.