DyAD: smart routing for networks-on-chip
Proceedings of the 41st annual Design Automation Conference
Buffer space optimisation with communication synthesis and traffic shaping for NoCs
Proceedings of the conference on Design, automation and test in Europe: Proceedings
DyXY: a proximity congestion-aware deadlock-free dynamic routing method for network on chip
Proceedings of the 43rd annual Design Automation Conference
Application driven traffic modeling for NoCs
SBCCI '06 Proceedings of the 19th annual symposium on Integrated circuits and systems design
Analysis and optimization of prediction-based flow control in networks-on-chip
ACM Transactions on Design Automation of Electronic Systems (TODAES)
Run-time adaptive on-chip communication scheme
Proceedings of the 2007 IEEE/ACM international conference on Computer-aided design
BARP-a dynamic routing protocol for balanced distribution of traffic in NoCs
Proceedings of the conference on Design, automation and test in Europe
ROAdNoC: runtime observability for an adaptive network on chip architecture
Proceedings of the 2008 IEEE/ACM International Conference on Computer-Aided Design
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Applications executing in current MPSoCs present traffic behavior with different characteristics in terms of QoS requirements and traffic modeling. Another important MPSoC traffic feature is its unpredictability and dynamic nature. Networks-on-chip (NoCs) are communication structures being used due to higher degree of parallelism, fault tolerance, and scalability, when compared to busses. Even with increased bandwidth due to parallelism, some flows may compete for the same network resources, affecting the applications performance, and possibly violating QoS requirements. Adaptive routing algorithms may reduce such congestion, enabling dynamic path modification according to some congestion evaluation metric. State of the art approaches have a limited view of the congestion areas, since each router take routing decisions based on its neighbors congestion status. Such local decision may lead packets to another NoC congested region, therefore being inefficient. This paper proposes a new method, using the information of all routers in the source-target path. This method relies on a protocol for QoS session establishment, followed by distributed monitoring, and reroute to non-congested routers. The set of executed experiments presents results concerning latency and buffer utilization when the method proposed is applied.