A logarithmic approach to energy-efficient GPU arithmetic for mobile devices
Miguel Lastras, Behrooz Parhami · 2013
Graphic processing units (GPUs) have emerged as useful components in the realization of high-performance and cost-effective digital systems for numerically intensive applications, from simple personal devices to large-scale supercomputers. In this paper, we consider GPUs that incorporate energy-efficient logarithmic arithmetic units. After analyzing numerical errors arising from such an implementation scheme, we present a simple fine-tuning of the design to reduce the worst-case error.