A methodology for mapping multiple use-cases onto networks on chips

  • Authors:
  • Srinivasan Murali;Martijn Coenen;Andrei Radulescu;Kees Goossens;Giovanni De Micheli

  • Affiliations:
  • Stanford University, Stanford;Philips Research Laboratories, The Netherlands;Philips Research Laboratories, The Netherlands;Philips Research Laboratories, The Netherlands;LSI, EPFL, Switzerland

  • Venue:
  • Proceedings of the conference on Design, automation and test in Europe: Proceedings
  • Year:
  • 2006

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Abstract

A communication-centric design approach, Networks on Chips (NoCs), has emerged as the design paradigm for designing a scalable communication infrastructure for future Systems on Chips (SoCs). As technology advances, the number of applications or use-cases integrated on a single chip increases rapidly. The different use-cases of the SoC have different communication requirements (such as different bandwidth, latency constraints) and traffic patterns. The underlying NoC architecture has to satisfy the constraints of all the use-cases. In this work, we present a methodology to map multiple use-cases onto the NoC architecture, satisfying the constraints of each use-case. We present dynamic re-configuration mechanisms that match the NoC configuration to the communication characteristics of each use-case, also accounting for use-cases that can run in parallel. The methodology is applied to several real and synthetic SoC benchmarks, which result in a large reduction in NoC area (an average of 80%) and power consumption (an average of 54%) compared to traditional design approaches.