永続分散共有メモリ機能を提供するデータベースサーバ : 「わかし」のメモリコヒーレンス機構

概要

論文の詳細を見る
Distributed Shared Memory (DSM) is defined to be a shared memory area over network, Network Of Workstation(NOW) can act as a parallel machine using DSM. The DSM space in every workstations of NOW always should be consistent. This consistency is maintainced by the continous communication via network. The cost of communication should be decreased, in order to improve the performance of DSM. But with the contrast to the improvement of CPU, and hard disk, the speed of network became the bottle neck of DSM. In this Paper, we will introduce a new mechanism to maintain the memory coherence of WAKASHI, which is a prototype of Persistent DSVM. That mechanism can also decrease the cost of communication in some degree. First, the overview of the memory coherence mechanism of DSVM is introduced in section 2 and WAKSHI is described in section 3 briefly. Next, we will introduce the new memory coherence mechanism in WAKASHI in section 4. Finally, the conclusion is given in section 5.
一般社団法人情報処理学会の論文
1997-03-12