Engineering Commons^™

Wearout Resilience In Nocs Through An Aging Aware Adaptive Routing Algorithm, Dean Michael Ancajas, Kshitij Bhardwaj, Koushik Chakraborty, Sanghamitra Roy

Electrical and Computer Engineering Faculty Publications

Continuous technology scaling has made aging mechanisms, such as negative bias temperature instability and electromigration primary concerns in network-on-chip (NoC) designs. In this paper, we extensively analyze the effects of these aging mechanisms on NoC routers and links. We observe a critical need of a robust aging-aware routing algorithm that not only reduces power-performance overheads caused due to aging degradation, but also minimizes the stress experienced by heavily utilized routers and links. To solve this problem, we propose an aging-aware adaptive routing algorithm and a router microarchitecture that routes the packets along the paths, which are both least congested and …