Data and Fault Aware Routing Algorithm for NoC Based Approximate Computing
Ibrahim Krayem, Romain Mercier, Cédric Killian, Angeliki S. Kritikakou, Daniel Chillet · 2022
Due to transistor shrinking and core number increasing in System-on-Chip (SoC), fault tolerance has become a critical concern. Given the amount of data communications on such architectures, Network-on-Chips (NoCs) lead a crucial role in terms of performance. Even if fault correction approaches have been developed, they cannot efficiently address several permanent faults on NoC, due to their high hardware costs and correction limitations. In parallel, Approximate Computing domain considers applications that can tolerate errors, hence allowing fault mitigation instead of correction. This latter brings the opportunity of low implementation cost techniques to improve the reliability of SoC.