Post-placement leakage optimization for partially dynamically reconfigurable FPGAs

Abstract

As technology continues to shrink, leakage power becomes animportant issue for modern FPGAs. In this paper, we address the leakage issue of partially dynamical reconfigurable FPGAs. We focus on eliminating leakage waste due to the delay between reconfiguration and task execution. We propose a post-placement leakage-aware scheduling algorithm that refines a placement generated by a performance-driven scheduler such that leakage waste is minimized and performance is not sacrificed. Experimental results on real and synthetic designs demonstrate the effectiveness and efficiency of our algorithm on leakage optimization.