Chance of Vulnerability Reduction in Application-Specific NoC through Distance Aware Mapping Algorithm
Majid Janidarmian, Atena Roshan Fekr, Vahhab Samadi Bokharaei, Sio-Iong Ao · AIP conference proceedings · 2011
Mapping algorithm which means which core should be linked to which router is one of the key issues in the design flow of network‐on‐chip. To achieve an application‐specific NoC design procedure that minimizes the communication cost and improves the fault tolerant property, first a heuristic mapping algorithm that produces a set of different mappings in a reasonable time is presented. This algorithm allows the designers to identify the set of most promising solutions in a large design space, which has low communication costs while yielding optimum communication costs in some cases. Another evaluated parameter, vulnerability index, is then considered as a principle of estimating the fault‐tolerance property in all produced mappings. Finally, in order to yield a mapping which considers trade‐offs between these two parameters, a linear function is defined and introduced. It is also observed that more flexibility to prioritize solutions within the design space is possible by adjusting a set of if‐then rules in fuzzy logic.