Electronics and Telecommunications Research Institute: A Multiprocessor Server with a New Highly Pipelined Bus

  • Authors:
  • Woo-Jong Hahn;Ando Ki;Kee-Wook Rim;Soo-Won Kim

  • Affiliations:
  • -;-;-;-

  • Venue:
  • IPPS '96 Proceedings of the 10th International Parallel Processing Symposium
  • Year:
  • 1996

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Abstract

In this paper, we explore the design issues of a shared bus with pipelined protocol, so called HiPi+Bus, which is implemented for a multiprocessor server. The characteristics and design parameters for the HiPi+Bus are described. In the viewpoint of a pipelined bus, a block transfer is no good because of involving complex and unbalanced pipeline. However, it is requested by a local cache memory of which line size tends to be increased. To get the best performance and compensate unbalanced data transfer characteristic caused by block transfer, a responder queue for the bus interface is also proposed. According to the simulation results, it is explored that the HiPi+Bus, with help of the responder queue, can provide balanced service for more than 16 processors, which is important in running commercial applications. The HiPi+Bus is implemented for the TICOM III, a successor of the TICOM II which is the main server of the national administrative information network in Korea.