UNApprox: An Open-Source Tool for Loop Perforation in Approximate Computing

Loop perforation is a well-known software-based approximate computing technique that improves efficiency at the expense of accuracy. In this paper, we present UNApprox, an open-source software tool that facilitates the easy application of loop perforation within an application's source code. As an open-source tool, UNApprox can also be extended to implement other approximate computing techniques. We tested the tool on three iterative algorithms, and the results are discussed in this paper.