A new fast message passing communication system for multiprocessor workstation clusters

  • Authors:
  • Zheng Weimin;Shen Jun;Wang Ju

  • Affiliations:
  • Tsinghua Univ., Beijing, China;Tsinghua Univ., Beijing, China;Tsinghua Univ., Beijing, China

  • Venue:
  • Progress in computer research
  • Year:
  • 2001

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Abstract

In this paper, a fast message passing communication architecture (FMP) is proposed in order to reduce the software overhead of communication, which has been a great impediment to the good performance of workstation clusters. A FMP system is implemented over the SUN Ultra2-Myrinet platform. Measurements show that this implementation has achieved a one-way latency of 11.2us for one-byte packets in network communication, and only 4.9us in local communication. Its bandwidth can reach as high as 338Mb/s for 8KB packets in network communication, and more than 770Mb/s in local message passing. These results tell us that FMP can really exploit the performance of supercomputers and high-speed networks. Local communication is implemented through shared memory within a single host, while the methods to decrease overheads of network communication depend on user-level communication protocol, pipeline transmission, credit flow control and multithreading. Furthermore, the whole system provides the interface for both network and local communication.