Designing Energy-Efficient Approximate Multipliers

Designing Energy-Efficient Fetch Engines

This dissertation evaluates factors that affect the energy-efficiency of the fetch engine in a programmable uniprocessor. The central thesis is that branch prediction is one of the key factors affecting overall processor energy-efficiency. Cooling costs, extending battery life in mobile devices, and reducing utility costs for wall-powered systems, especially data centers are growing concerns. T...

Comparative Study of Approximate Multipliers

Approximate multipliers are widely being advocated for energy-efficient computing in applications that exhibit an inherent tolerance to inaccuracy. However, the inclusion of accuracy as a key design parameter, besides the performance, area and power, makes the identification of the most suitable approximate multiplier quite challenging. In this paper, we identify three major decision making fac...

Energy-Efficient Approximate Computation in Topaz

We present Topaz, a new task-based language for computations thatexecute on approximate computing platforms that may occasion-ally produce arbitrarily inaccurate results. The Topaz implementa-tion maps approximate tasks onto the approximate machine and in-tegrates the approximate results into the main computation, deploy-ing a novel outlier detection and reliable reexecution...

Design of Energy - Efficient Approximate Arithmetic Circuits

HADAS Green Assistant: designing energy-efficient applications

The number of works addressing the role of energy efficiency in the software development has been increasing recently. But, designers and programmers still complain about the lack of tools that help them to make energy-efficiency decisions. Some works show that energy-aware design decisions tend to have a larger impact in the power consumed by applications, than code optimizations. In this pape...