【摘要】：大規(guī)模高速緩存一致性非均勻存儲訪問(cache coherence non-uniform memory access,CC-NUMA)系統(tǒng)通常采用兩級一致性域方法來降低緩存一致性協(xié)議維護開銷,提升系統(tǒng)性能.兩級一致性域系統(tǒng)中,多個處理器互連,形成結點內一致性域;多個結點互連,形成結點間一致性域.然而,受限于處理器直連能力與處理器可識別ID數(shù),系統(tǒng)的單結點規(guī)模有限,系統(tǒng)規(guī)模的擴展不得不依靠增加結點數(shù)來實現(xiàn),使得大規(guī)模CC-NUMA系統(tǒng)的結點間互連復雜度上升,跨結點訪問帶寬和延遲急劇增長,影響了系統(tǒng)性能的有效擴展.MPD系統(tǒng)通過在結點內構建多個并行緩存一致性域,突破了處理器直連能力與可識別ID數(shù)對單結點規(guī)模的限制,能夠大幅減少結點數(shù)量,并將部分結點間訪問轉化為結點內訪問,實現(xiàn)系統(tǒng)性能的有效擴展.理論分析和實驗結果表明:采用同規(guī)格處理器的32路系統(tǒng)中,結點內4個并行緩存一致性域的MPD系統(tǒng)可實現(xiàn)結點數(shù)目減少75%、一致性目錄存儲開銷節(jié)省40%以上、平均訪問延遲降低約27.9%、系統(tǒng)整體性能提升約14.4%.
[Abstract]:Large-scale cache consistent non-uniform storage access (cache coherence non-uniform memory access,CC-NUMA) systems usually use a two-level consistency domain approach to reduce cache consistency protocol maintenance overhead and improve system performance. In a two-level uniform domain system, multiple processors interconnect to form a consistent domain within a node, and multiple nodes interconnect to form a consistent domain between nodes. However, limited by the direct connection ability of the processor and the number of ID identifiable by the processor, the single node size of the system is limited, and the expansion of the system scale has to be realized by increasing the number of nodes, which increases the complexity of interconnection between nodes in large-scale CC-NUMA systems. The rapid increase of cross-node access bandwidth and delay affects the effective expansion of system performance. MPD system breaks through the limitation of processor direct connection ability and identifiable ID number to single node size by building multiple parallel cache consistency domains in nodes. The number of nodes can be greatly reduced, and the access between some nodes can be transformed into intra-node access, so as to realize the effective expansion of system performance. The theoretical analysis and experimental results show that in the 32-channel system with the same specification processor, the number of nodes can be reduced by 75% and the storage cost of the consistent directory can be saved by more than 40% in the MPD system with four parallel cache consistent domains in the node. The average access delay is reduced by about 27.9%, and the overall performance of the system is improved by about 14.4%.
【作者單位】： 高效能服務器和存儲技術國家重點實驗室(浪潮集團有限公司);
【分類號】：TP303

【相似文獻】

相關會議論文 前1條

1 董小潔;夏寬理;;忍受犯規(guī)的開放式提交協(xié)議[A];第十二屆全國數(shù)據(jù)庫學術會議論文集[C];1994年

相關重要報紙文章 前1條

1 蔣杰 方力 竇文華;覆蓋控制[N];計算機世界;2004年

相關博士學位論文 前1條

1 王立;城市結點文化特質及其協(xié)同觀[D];重慶大學;2006年

相關碩士學位論文 前6條

1 楊孟君;基于網絡認知的無中心式系統(tǒng)交互的優(yōu)化方法[D];電子科技大學;2015年

2 田艷;復雜網絡重要結點發(fā)現(xiàn)算法研究[D];云南財經大學;2016年

3 姜浩;對等網絡中路由中繼結點發(fā)現(xiàn)機制的研究[D];華中科技大學;2007年

4 顧燁;P2P網絡邏輯拓撲優(yōu)化和結點組管理策略研究[D];浙江工商大學;2010年

5 李丁丁;一種基于結點聚類的網絡定位算法[D];湖南大學;2008年

6 孫宇奇;基于復雜網絡的社團發(fā)現(xiàn)研究[D];遼寧師范大學;2011年

，

本文編號：2485545