Decision Tree-Based Adaptive Reconfigurable Cache Scheme

作     者：Zhu, Wei Zeng, Xiaoyang 

作者机构：Fudan Univ State Key Lab ASIC & Syst Shanghai 201203 Peoples R China 

出 版 物：《ALGORITHMS》 (算法)

年 卷 期：2021年第14卷第6期

页      面：176页

核心收录：

学科分类：0301[法学-法学] 03[法学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：National Natural Science Foundation of China (NSFC) 

主　　题：decision tree adaptive algorithm reconfigurable cache multicore processor 

摘      要：Applications have different preferences for caches, sometimes even within the different running phases. Caches with fixed parameters may compromise the performance of a system. To solve this problem, we propose a real-time adaptive reconfigurable cache based on the decision tree algorithm, which can optimize the average memory access time of cache without modifying the cache coherent protocol. By monitoring the application running state, the cache associativity is periodically tuned to the optimal cache associativity, which is determined by the decision tree model. This paper implements the proposed decision tree-based adaptive reconfigurable cache in the GEM5 simulator and designs the key modules using Verilog HDL. The simulation results show that the proposed decision tree-based adaptive reconfigurable cache reduces the average memory access time compared with other adaptive algorithms.