Managing Dynamic Precision on Reconfigurable Hardware

this paper we outline our framework for managing the dynamic precision variation. We represent the variation in the required precision for an operation by using a precision variation curve. The precision variation curve quantifies the variation in the required precision for an operation over time. The concept of time can represented by using various measures such as execution time, program counter, loop counter, etc. In this paper we analyze the variation of precision in loop computations as the iterations of the loops progress. Compile-time and run-time techniques to determine the precision variation curve for a given computation are described. Various algorithmic techniques are developed for optimal mapping of the computations onto reconfigurable hardware [1, 2]. We illustrate the utility of our approach by demonstrating the performance improvement for an example operation