Designing Routing and Message-Dependent Deadlock Free Networks on Chips

  • Srinivasan Murali
  • Paolo Meloni
  • Federico Angiolini
  • David Atienza
  • Salvatore Carta
  • Luca Benini
  • Giovanni De Micheli
  • Luigi Raffo
Part of the IFIP International Federation for Information Processing book series (IFIPAICT, volume 249)

Networks on Chip(NoC) has emerged as the paradigm for designing scalable communication architecture for Systems on Chips (SoCs). Avoiding the conditions that can lead to deadlocks in the network is critical for using NoCs in real designs. Methods that can lead to deadlock-free operation with minimum power and area overhead are important for designing application-specific NoCs. The deadlocks that can occur in NoCs can be broadly categorized into two classes: routingdependentdeadlocks and message-dependentdeadlocks. In this work, we present methods to design NoCs that avoid both types of deadlocks. The methods are integrated with the topology synthesis phase of the NoC design flow. We show that by considering the deadlock avoidance issue during topology synthesis, we can obtain a significantly better NoC design than traditional methods, where the deadlock avoidance issue is dealt with separately. Our experiments on several SoC benchmarks show that our proposed scheme provides large reduction in NoC power consumption (an average of 38.5%) and NoC area (an average of 30.7%) when compared to traditional approaches. Keywords: Networks on Chips, Systems on Chips, Message-dependent deadlocks, routing-dependent deadlocks, topology, synthesis.


Power Consumption Virtual Channel Message Type Deadlock Prevention Deadlock Avoidance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© International Federation for Information Processin 2008

Authors and Affiliations

  • Srinivasan Murali
    • 1
  • Paolo Meloni
    • 2
  • Federico Angiolini
    • 2
  • David Atienza
    • 3
  • Salvatore Carta
    • 4
  • Luca Benini
    • 5
  • Giovanni De Micheli
    • 3
  • Luigi Raffo
    • 2
  1. 1.CSLStanford UniversityStanfordUSA
  2. 2.DIEEUniversity of CagliariItaly
  3. 3.Ecole Polytechnique Fédérale de LausanneSwitzerland
  4. 4.DMIUniversity of CagliariItaly
  5. 5.DEISUniverity of BolognaItaly

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