Virtual channels vs. multiple physical networks: a comparative analysis

  • Authors:
  • Young Jin Yoon;Nicola Concer;Michele Petracca;Luca Carloni

  • Affiliations:
  • Columbia University;Columbia University;Columbia University;Columbia University

  • Venue:
  • Proceedings of the 47th Design Automation Conference
  • Year:
  • 2010

Quantified Score

Hi-index 0.00

Visualization

Abstract

Packet-switched networks-on-chip (NoC) have been proposed as an efficient communication infrastructure for multi-core architectures. Adding virtual channels to a NoC helps to avoid deadlock and optimize the bandwidth of the physical channels in exchange for a more complex design of the routers. Another, possibly alternative, approach is to build multiple parallel physical networks (multiplanes) with smaller channels and simpler router organizations. We present a comparative analysis of these two approaches based on analytical models and on a comprehensive set of experimental results including both synthesized hardware implementations and system-level simulations.