A unified framework for periodic, on-demand, and user-specified software information

Paul Z. Kolano
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引用次数: 4

Abstract

Although grid computing can increase the number of resources available to a user, not all resources on the grid may have a software environment suitable for running a given application. To provide users with the necessary assistance for selecting resources with compatible software environments and/or for automatically establishing such environments, an accurate source of information about the software installed across the grid is needed. Existing software information services and general-purpose information frameworks are inadequate for this task. This paper presents a new OGSI-compliant software information service that has been implemented as part of NASA's Information Power Grid project. This service is built on top of a general framework for reconciling information from periodic, on-demand, and user-specified sources. Information is retrieved using standard XPath queries over a single unified namespace independent of the information's source. Two consumers of the provided software information, the IPG Resource Broker and the IPG Naturalization Service, are briefly described.
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定期、按需和用户指定的软件信息的统一框架
尽管网格计算可以增加用户可用的资源数量,但并非网格上的所有资源都具有适合运行给定应用程序的软件环境。为了向用户提供必要的帮助,帮助他们选择具有兼容软件环境的资源和/或自动建立这样的环境,需要一个关于跨网格安装的软件的准确信息源。现有的软件信息服务和通用信息框架不足以完成这项任务。本文提出了一种新的符合ogsi的软件信息服务,该服务已作为NASA信息电网项目的一部分实现。此服务构建在一个通用框架之上,用于协调来自定期、按需和用户指定源的信息。使用独立于信息源的单一统一名称空间上的标准XPath查询检索信息。提供的软件信息的两个消费者,IPG资源代理和IPG归化服务,简要介绍。
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