Performance-Conscious Reconfiguration Structure for Large-Scale Coarse-Grained Reconfigurable System

This paper proposes a performance-conscious reconfiguration structure to accelerate the reconfiguration process in a high efficient coarse-grained reconfigurable system called Reconfigurable Array Template Version-I (RAT-I). To meet the high requirements of reconfiguration performance for large-scale reconfigurable systems, the hierarchical storage structure of configurations together with the configuration pre-fetching and buffering technologies are proposed in this work to improve the reconfiguration process. The experimental results show that, with the proposed performance-conscious reconfiguration structure, RAT-I can support 1920×1080@31fps real-time decoding of H.264 High-Profile (HiP) streams at a 250 MHz working frequency, and the performance of RAT-I is 2.37 times better than that of XPP which is a popular commercial reconfigurable media processor.