Reliability aware NoC router architecture using input channel buffer sharing

To address the increasing demand for reliability in on-chip networks, we proposed a novel Reliability Aware Virtual channel (RAVC) NoC router micro-architecture that enables both dynamic virtual channel allocations and the rational sharing among the buffers of different input channels. In particular, in the case of failure in routers, the virtual channels of routers surrounding the faulty routers can be totally recaptured and reassigned to other input ports. Moreover, our proposed RAVC router isolates the faulty router from occupying network bandwidth. Experimental result shows that proposed micro-architecture provides 7.1% and 3.1 % average latency decrease under uniform and transpose traffic pattern. Considering the existence of failures in routers of on-chip network, RAVC provides 28% and 16% decrease in the average packet latency under the uniform and transpose traffic pattern respectively. Categories and Subject Descriptors B.8.1 [Performance and Reliability]: Reliability, Testin...

• Type: Conference
• Year: 2009
• Where: GLVLSI
• Authors: Mohammad Hossein Neishaburi, Zeljko Zilic
• Keywords: Faulty Router, GLVLSI 2009, Routers, Virtual Channel, VLSI