Extended recursive analysis for tilera tile64 NoC architectures: towards inter-NoC delay analysis

A heterogeneous network, where a switched-Ethernet backbone, e.g. AFDX, interconnects several end systems based on Network-on-Chip (NoC), is a promising candidate to build new avionics architectures. When using such a heterogeneous network for real-time applications, a global worst-case traversal time (WCTT) analysis is needed. In this short paper we focus on the intra-NoC communication on a Tilera TILE64-like NoC. First, we extend the Recursive Calculus (RC) to achieve tighter intra-NoC WCTT. Then, we explain how this intra-NoC WCTT analysis could be used in a compositional manner for the end-to-end inter-NoC delay analysis.

[1]  Jérôme Ermont,et al.  Towards a unified approach for worst-case analysis of Tilera-like and KalRay-like NoC architectures , 2016, 2016 IEEE World Conference on Factory Communication Systems (WFCS).

[2]  Laure Abdallah,et al.  Wormhole networks properties and their use for optimizing worst case delay analysis of many-cores , 2015, 10th IEEE International Symposium on Industrial Embedded Systems (SIES).

[3]  F. Frances,et al.  Using network calculus to optimize the AFDX network , 2006 .

[4]  Christian Fraboul,et al.  Improving the Worst-Case Delay Analysis of an AFDX Network Using an Optimized Trajectory Approach , 2010, IEEE Transactions on Industrial Informatics.

[5]  Laure Abdallah,et al.  Reducing the Contention Experienced by Real-Time Core-to-I/O Flows over a Tilera-Like Network on Chip , 2016, 2016 28th Euromicro Conference on Real-Time Systems (ECRTS).

[6]  Stefan M. Petters,et al.  NoC contention analysis using a branch-and-prune algorithm , 2014, ACM Trans. Embed. Comput. Syst..

[7]  Christian Fraboul,et al.  Worst-case delay analysis on a real-time heterogeneous network , 2012, 7th IEEE International Symposium on Industrial Embedded Systems (SIES'12).

[8]  Christian Fraboul,et al.  A method of computation for worst-case delay analysis on SpaceWire networks , 2009, 2009 IEEE International Symposium on Industrial Embedded Systems.

[9]  Christian Fraboul,et al.  Applying and optimizing trajectory approach for performance evaluation of AFDX avionics network , 2009, 2009 IEEE Conference on Emerging Technologies & Factory Automation.