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New flexible software platform to overcome ubiquitous NW complexity

新的灵活软件平台可克服普遍存在的网络复杂性

基本信息

批准号：
16360196
负责人：
MARUYAMA Katsumi
金额：
$ 3.58万
依托单位：
National Institute of Informatics (NII)
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16360196/
关键词：
micro-kernel Distributed processing Operating system L4 Plan9 Object-oriented 仮想マシン OS 分散オブジェクト

项目摘要

Computer systems are requested to collaborate/federate smoothly in ubiquitous age. Followings are major research results of this project.(1)LP49 : An operating system for federated processingWe are implementing a new federated operating system named LP49 for embedded systems. Recent embedded systems need various functional capabilities, especially distributed/federated processing. LP49 will answer to these requests. It is characterized by: a) use of L4 micro-kernel, b) user land multi-servers which provide various OS services, c) federated processing based on Plan9. LP49 supports development high-performance embedded systems(2)Study on remote device accessing in Operating SystemsThe objective is to support collaborative processing in mobile environment. Mobile computers are common, but this study has contrived device-mobility. Users can bring about wireless-devices (such as thin monitors, input devices), receiving services from remote server computers.(3)Object sub-graph replication middleware to enhance efficiency and scalability of distributed Java programsUbiquitous collaboration has become an every day life paradigm. The traditional replication scheme copes with network unreliability by replicating all objects of a shared application together, and is not suitable for cooperative applications or mobile computing. Out approach adopted a sub-graph-oriented replication that enables a portion of the application objects to be replicated. An object-oriented middleware is implemented which is capable of dynamically and partially replicating remotely shared Java applications in a transparent and on-demand incremental manner.

泛在时代要求计算机系统能够平滑地协作/联邦。以下是本项目的主要研究成果。（1）LP 49：一个用于联邦处理的操作系统我们正在实现一个新的用于嵌入式系统的联邦操作系统LP 49。最近的嵌入式系统需要各种功能的能力，特别是分布式/联邦处理。LP 49将回答这些请求。其特点是：a）使用L4微内核，B）提供各种OS服务的用户域多服务器，c）基于Plan 9的联邦处理。LP 49支持开发高性能嵌入式系统（2）操作系统中远程设备访问的研究目标是支持移动的环境中的协同处理。移动的计算机很常见，但本研究设计了设备移动性。用户可以携带无线设备（如薄显示器，输入设备），从远程服务器计算机接收服务。（3）对象子图复制中间件，提高分布式Java程序的效率和可扩展性无处不在的协作已经成为日常生活的范例。传统的复制机制通过将共享应用的所有对象复制在一起来应对网络不可靠性，不适合于协同应用或移动的计算。我们的方法采用了一个面向子图的复制，使一部分的应用程序对象被复制。实现了一个面向对象的中间件，它能够动态地和部分地复制远程共享的Java应用程序在一个透明的和按需增量的方式。