A Resilient Routing Algorithm with Formal Reliability Analysis for Partially Connected 3D-NoCs
2016 (English)In: I.E.E.E. transactions on computers (Print), ISSN 0018-9340, E-ISSN 1557-9956, Vol. 65, no 11, 3265-3279 p.Article in journal (Refereed) Published
3D ICs can take advantage of a scalable communication platform, commonly referred to as the Networks-on-Chip (NoC). In the basic form of 3D-NoC, all routers are vertically connected. Partially connected 3D-NoC has emerged because of physical limitations of using vertical links. Routing is of great importance in such partially connected architectures. A high-performance, fault-tolerant and adaptive routing strategy with respect to the communication flow among the cores is crucial while freedom from livelock and deadlock has to be guaranteed. In this paper we introduce a new routing algorithm for partially connected 3D-NoCs. The routing algorithm is adaptive and tolerates the faults on vertical links as compared to the predesigned routing algorithms. Our results show a 40 - 50% improvement in the fraction of intact inter-level communications when the fault tolerant algorithm is used. This routing algorithm is lightweight and has only one virtual channel along the Y dimension.
Place, publisher, year, edition, pages
IEEE Computer Society, 2016. Vol. 65, no 11, 3265-3279 p.
3D network-on-chip, routing algorithm, deadlock-free, reliability, formal analysis, fault tolerance
IdentifiersURN: urn:nbn:se:kth:diva-198577DOI: 10.1109/TC.2016.2532871ISI: 000388498000004OAI: oai:DiVA.org:kth-198577DiVA: diva2:1057707
QC 201612192016-12-192016-12-192016-12-19Bibliographically approved