Formal Analysis of a Fault-Tolerant Routing Algorithm for a Network-on-Chip

Zhen Zhang 1, * Wendelin Serwe 2, * Jian Wu 3 Tomohiro Yoneda 4 Hao Zheng 5 Chris Myers 1, *
* Corresponding author
1 Department of Electrical and Computer Engineering
2 CONVECS - Construction of verified concurrent systems
Inria Grenoble - Rhône-Alpes, LIG - Laboratoire d'Informatique de Grenoble
3 Marvell Technology Group Ltd.
4 NII - National Institute of Informatics
5 Department of Computer Science and Engineering
Abstract : A fault-tolerant routing algorithm in Network-on-Chip architectures provides adaptivity for on-chip communications. Adding fault-tolerance adaptivity to a routing algorithm increases its design complexity and makes it prone to deadlock and other problems if improperly implemented. Formal verification techniques are needed to check the correctness of the design. This paper performs formal analysis on an extension of the link-fault tolerant Network-on-Chip architecture introduced by Wu et al. that supports multiflit wormhole routing. This paper describes several lessons learned during the process of constructing a formal model of this routing architecture. Finally, this paper presents how the deadlock freedom and tolerance to a single-link fault is verified for a two-by-two mesh version of this routing architecture.
Keywords : LNT process algebra fault-tolerant routing Network-on-Chip formal verification
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Conference papers
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https://hal.inria.fr/hal-01064829
Contributor : Wendelin Serwe <>
Submitted on : Wednesday, September 17, 2014 - 11:39:21 AM
Last modification on : Saturday, December 15, 2018 - 1:49:33 AM
Document(s) archivé(s) le : Thursday, December 18, 2014 - 10:47:02 AM

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Zhen Zhang, Wendelin Serwe, Jian Wu, Tomohiro Yoneda, Hao Zheng, et al.. Formal Analysis of a Fault-Tolerant Routing Algorithm for a Network-on-Chip. Frédéric Lang; Francesco Flammini. 19th International Conference on Formal Methods for Industrial Critical Systems, FMICS 2014, Sep 2014, Florence, Italy. Springer, 8718, pp.48-62, 2014, Lecture Notes in Computer Science. 〈10.1007/978-3-319-10702-8_4〉. 〈hal-01064829〉

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