基于主题的VSM中间件的设计与实现  

Design and implementation of a topic-based VSM middleware

作　　者：王张平[1] 杜承烈[1] 周彦菲[1] 

机构地区：[1]西北工业大学计算机学院,陕西西安710129

出　　处：《电子设计工程》2011年第23期57-60,63,共5页Electronic Design Engineering

摘　　要：针对分布式仿真系统对数据交换的实时性和透明性需求,采用基于软件实现的内存共享技术,设计出了虚拟共享内存中间件,提高了系统的实时性和数据的透明交互。然而在网络负载很大的情况下,虚拟共享内存的实时性很差。通过采用发布/订阅通信模式,提出了一种基于主题的VSM中间件的设计方案,优化了网络通信,提高了VSM在高负载情况下的实时性,并且具有一定的通用性。Based on the real-time data exchange and transparency requirements of the distributed simulation system, using the software-based memory sharing technology, a research design of （VSM） Virtual Shared Memory middleware is presented. This design improves the data transparency and interaction of the real-time system. However, in the case of large network load , the real-time performance of VSM is poor. Through the using of Publish/Subscribe communication model, a topic-based VSM middleware design is proposed, which optimizes the network traffic and improves the real-time performance of VSM in the high load conditions, and has some versatility.

关 键 词：分布式仿真 虚拟共享内存 发布/订阅 主题 

分 类 号：TP319[自动化与计算机技术—计算机软件与理论]