An energy efficient non-uniform Last Level Cache Architecture in 3D chip-multiprocessors

Abstract

In this paper, we propose a novel compression method called Zero-Duplicate Compression (ZDC) to compress network traffic and to increase lifetime in Non-Volatile Memories (NVMs) as a Last-Level-Cache (LLC). Moreover, we limit compression by a new mechanism called Selective Compression Architecture (SCA) to reduce delay overhead and static energy from compression/decompression. Our experiments show that the ZDC provides comparable compression ratio to two other state-of-the-art compression methods and the SCA improves energy consumption and performance by about 76% and 11%, on average, compared with the traditional architecture, respectively.