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Title: Fast and cycle-accurate simulation of RTL NoC designs using test-driven cellular automata
Authors: Seok, Moon Gi
Sarjoughian, Hessam S.
Choi, Changbeom
Park, Daejin
Keywords: Engineering::Computer science and engineering
Issue Date: 2020
Source: Seok, M. G., Sarjoughian, H. S., Choi, C., & Park, D. (2020). Fast and cycle-accurate simulation of RTL NoC designs using test-driven cellular automata. IEEE Access, 8, 2670-2686. doi:10.1109/ACCESS.2019.2962253
Journal: IEEE Access
Abstract: Speeding up the register-transfer level (RTL) simulation of network-on-chip (NoC) is essential for design optimization under various use scenarios and parameters. One of the promising approaches for RTL NoC speedup is high-level modeling. Conventional high-level modeling approaches lead to an accuracy problem or modeling efforts that are caused by the absence of modeling framework or requiring in-depth knowledge of specific behaviors of target NoCs. To support cycle-accurate and formal high-level modeling framework, we propose a cellular automata (CA) modeling framework for RTL NoC. The CA abstracts detailed RTL NoC dynamics into the proposed high-level state transitions, which support flit transmission among CA components through dynamically changing flit paths based on the target RTL routing and arbitration algorithms. To prevent the meaningless execution of stable CA, the CA are designed to be triggered by state-change events. The proposed simulation engine asynchronously invokes CA to update their states and perform actions of flit transmissions or flit-path changes based on the state-decision result. To reduce the modeling difficulty, we provide a test environment that generates the state-transition rules for CA after monitoring the relationships between high-level states and leading actions under randomly injected packets during target RTL NoC simulations. Experiments demonstrate cycle-level functional homogeneity between RTL and the abstracted CA NoC models and significant simulation speedup.
ISSN: 2169-3536
DOI: 10.1109/ACCESS.2019.2962253
Schools: School of Computer Science and Engineering 
Rights: © 2020 IEEE. This journal is 100% open access, which means that all content is freely available without charge to users or their institutions. All articles accepted after 12 June 2019 are published under a CC BY 4.0 license, and the author retains copyright. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, as long as proper attribution is given.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCSE Journal Articles

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