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Towards Graceful Aging Degradation In Nocs Through An Adaptive Routing Algorithm, Kshitij Bhardwaj, Koushik Chakraborty, Sanghamitra Roy
Towards Graceful Aging Degradation In Nocs Through An Adaptive Routing Algorithm, 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 (NBTI) and electromigration primary concerns in Network-on-Chip (NoC) designs. In this paper, we model the effects of these aging mechanisms on NoC components such as routers and links using a novel reliability metric called Traffic Threshold per Epoch (TTpE). 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 …
An Milp-Based Aging-Aware Routing Algorithm For Nocs, Kshitij Bhardwaj, Koushik Chakraborty, Sanghamitra Roy
An Milp-Based Aging-Aware Routing Algorithm For Nocs, Kshitij Bhardwaj, Koushik Chakraborty, Sanghamitra Roy
Electrical and Computer Engineering Faculty Publications
Network-on-Chip (NoC) architectures have emerged as a better replacement of the traditional bus-based communication in the many-core era. However, continuous technology scaling has made aging mechanisms such as Negative Bias Temperature Instability (NBTI) and electromigration primary concerns in NoC design. In this paper1, we propose a novel system-level aging model to model the effects of asymmetric aging in NoCs. We observe a critical need of a holistic aging analysis, which when combined with power-performance optimization, poses a multi-objective design challenge. To solve this problem, we propose a Mixed Integer Linear Programming (MILP)-based aging-aware routing algorithm that optimizes the various design …