Special session: How approximate computing impacts verification, test and reliability

摘要: Two AxC techniques have been successfully applied to hardware components. The first one is the functional approximation [1]that modifies circuit structure replacing original function F with G. G implementation leads area/energy reduction at cost of reduced accuracy, meaning that some errors can be observed outputs are a variation between output values (precise) and (approximate). accuracy loss measured by means quality metric(s) [1]. second technique over-scaling based approximation. Basically, HW component forced work outside its specified operating conditions classical example supply voltage under minimum value.