Performance Analysis of the Communication Architecture of the Connection Machine

  • Authors:
  • A. K. Ahluwalia;M. Singhal

  • Affiliations:
  • -;-

  • Venue:
  • IEEE Transactions on Parallel and Distributed Systems
  • Year:
  • 1992

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Abstract

The performance of the interprocessor communication architecture of the CM-2 isanalyzed. A discrete-time Markov chain model of its network architecture is developed tocompute the message delay introduced by the network architecture. Due to thesynchronous time-division multiplexing nature of the network operation, it is amenable toa discrete-time Markov chain modeling. The analysis yields formulas for response time and several other related performance measures, showing how the performance of thenetwork degrades with the message arrival rate and other parameters. Since thecommunication delays affect interprocess communication, knowledge of the sensitivity ofthe delays to the parameters can be a useful aid in designing a high performance parallelsystem. To keep the analysis tractable, an approximate Markov model is used thatrequires the use of fixed-point iteration for its solution. Validation of the results against asimulation study reveals that the analysis predicts the performance of the network withhigh accuracy.