Low overhead monitor mechanism for fault-tolerant analysis of NoC

Liu, J, Harkin, J, Li, Y, Maguire, L and Linares-Barranco, A 2014, Low overhead monitor mechanism for fault-tolerant analysis of NoC , in: Institute of Electrical and Electronics Engineers (IEEE) 8th International Symposium on Embedded Multicore/Many-core Systems-on-Chip (MCSoC-14), 23-25 September 2014, Aizu-Wakamatsu, Japan.

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Abstract

Modern Networks-on-Chip (NoC) have the capability to tolerate and adapt to the faults and failures in the hardware. Monitoring and debugging is a real challenge due to the NoC system complexity and large scale size. A key requirement is an evaluation and benchmarking mechanism to quantitatively analyse a NoC systems fault tolerant capability. A novel monitoring mechanism is proposed to evaluate the fault tolerant capability of an NoC by: (1) using a compact monitor probe to detect the events of each NoC node; (2) re-using the exist NoC infrastructure to communicate analysis data back to a terminal PC which removes the need for additional hardware resources and maintain hardware scalability and (3) calculating throughput, the number of lost/corrupted packets and generating a heat map of NoC traffic for quantitative analysis. The paper presents results on a case study using an example fault-tolerant routing algorithm and highlights the minimal area overhead of the monitoring mechanism (~6%). Results demonstrate that the proposed online monitoring strategy is highly scalable due to the compact monitor probe and the ability to reuse the existing NoC communication infrastructure. In addition, the traffic heat map generation and throughput display demonstrates benefits in aiding NoC system prototyping and debugging.

Item Type:	Conference or Workshop Item (Paper)
Schools:	Schools > School of Computing, Science and Engineering
Journal or Publication Title:	Embedded Multicore/Manycore SoCs (MCSoc), 2014 Institute of Electrical and Electronics Engineers (IEEE) 8th International Symposium
Publisher:	Institute of Electrical and Electronics Engineers (IEEE)
Refereed:	Yes
Funders:	Non funded research
Depositing User:	Yuhua Li
Date Deposited:	19 Jun 2015 18:27
Last Modified:	06 Sep 2021 07:32
URI:	https://usir.salford.ac.uk/id/eprint/33098

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