Aware conflict detection of non-uniform memory access system and prevention for transactional memory  

作　　者：王睿伯 卢凯 卢锡城 

机构地区：[1]School of Computer,National University of Defense Technology

出　　处：《Journal of Central South University》2012年第8期2266-2271,共6页中南大学学报（英文版）

基　　金：Projects(61003075, 61170261) supported by the National Natural Science Foundation of China

摘　　要：Most transactional memory (TM) research focused on multi-core processors, and others investigated at the clusters, leaving the area of non-uniform memory access (NUMA) system unexplored. The existing TM implementations made significant performance degradation on NUMA system because they ignored the slower remote memory access. To solve this problem, a latency-based conflict detection and a forecasting-based conflict prevention method were proposed. Using these techniques, the NUMA aware TM system was presented. By reducing the remote memory access and the abort rate of transaction, the experiment results show that the NUMA aware strategies present good practical TM performance on NUMA system.Most transactional memory （TM） research focused on multi-core processors, and others investigated at the clusters, leaving the area of non-uniform memory access （NUMA） system unexplored. The existing TM implementations made significant performance degradation on NUMA system because they ignored the slower remote memory access. To solve this problem, a latency-based conflict detection and a forecasting-based conflict prevention method were proposed. Using these techniques, the NUMA aware TM system was presented. By reducing the remote memory access and the abort rate of transaction, the experiment results show that the NUMA aware strategies present good practical TM performance on NUMA system.

关 键 词：transactional memory non-uniform memory access （NUMA） conflict detection conflict prevention 

分 类 号：TP333.1[自动化与计算机技术—计算机系统结构]