An Event-Based Network-on-Chip Monitoring Service.
Networks on chip (NoCs) are a scalable interconnect solution for large scale multiprocessor systems on chip (SoCs). However, little attention has been paid so far to the monitoring and debugging support for NoC-based systems. We propose a generic on-line event-based NoC monitoring service, based on hardware probes attached to NoC components. The proposed monitoring service offers run-time observability of NoC behavior and supports system-level and application debugging. The defined service can be accessed and configured at run-time from any network interface port. We present a probe architecture for the monitoring service, together with its associated programming model and traffic management strategies. We prove the feasibility of our approach via a prototype implementation for the Æthereal NoC. The additional monitoring traffic is low; typical monitoring connection configuration for a NoC-based SoC application needs only 4.8KB/s, which is 6 orders of magnitude lower than the 2GB/s per link raw bandwidth offered by the Æthereal NoC.
- An Event-Based Network-on-Chip Monitoring Service
C. Ciordaş, T. Basten, A. Rădulescu, K.G.W. Goossens, J.L. van Meerbergen.
To appear in IEEE International High Level Design Validation and Test Workshop 2004, HLDVT 2004, Proceedings. Sonoma Valley, California, USA, 10-12 November, 2004. IEEE, 2004. (abstract, pdf)
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