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1.	Du, G., et al. (author) Worst-case performance analysis of 2-D mesh NoCs using multi-path minimal routing 2012 In: CODES+ISSS'12 - Proceedings of the 10th ACM International Conference on Hardware/Software-Codesign and System Synthesis, Co-located with ESWEEK. - New York, NY, USA : ACM Publications. - 9781450314268 ; , s. 123-132 Conference paper (peer-reviewed)abstract In Network-on-Chip (NoC), multi-path routing is often preferable than single-path routing since it can better balance workload and thus provide better performance. However, performance analysis with multi-path routing is much more difficult due to complicated contention scenarios. Based on network calculus, we study worst-case performance of deterministic multi-path minimal routing on 2-D mesh NoCs. We first present a per-flow delay bound analysis technique for multi-path routing, which extends the analysis for singlepath routing but deals with traffic splitting. Then we define a contention matrix to capture network congestion status. Based on the contention matrix, we propose an effective nonuniform traffic splitting strategy to improve worst-case performance. Experiments with synthetic traffic flows and an industrial case show that our analysis can effectively explore the traffic splitting space, and verify the effectiveness of the non-uniform splitting policy.

Du, G., et al. (author)
Worst-case performance analysis of 2-D mesh NoCs using multi-path minimal routing
2012
In: CODES+ISSS'12 - Proceedings of the 10th ACM International Conference on Hardware/Software-Codesign and System Synthesis, Co-located with ESWEEK. - New York, NY, USA : ACM Publications. - 9781450314268 ; , s. 123-132
Conference paper (peer-reviewed)abstract
- In Network-on-Chip (NoC), multi-path routing is often preferable than single-path routing since it can better balance workload and thus provide better performance. However, performance analysis with multi-path routing is much more difficult due to complicated contention scenarios. Based on network calculus, we study worst-case performance of deterministic multi-path minimal routing on 2-D mesh NoCs. We first present a per-flow delay bound analysis technique for multi-path routing, which extends the analysis for singlepath routing but deals with traffic splitting. Then we define a contention matrix to capture network congestion status. Based on the contention matrix, we propose an effective nonuniform traffic splitting strategy to improve worst-case performance. Experiments with synthetic traffic flows and an industrial case show that our analysis can effectively explore the traffic splitting space, and verify the effectiveness of the non-uniform splitting policy.

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