Software Environment of a Grid-based Virtual Organization for Flood Prediction
Software Environment of a Grid-based Virtual Organization for Flood Prediction
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发表时间：
2004
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通讯作者：
L. Hluchý;O. Habala;J. Astalos;V. Tran;M. Maliska
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作者：
L. Hluchý;O. Habala;J. Astalos;V. Tran;M. Maliska
在本文中，我们提出了一个基于网格基础设施的协同计算环境的体系结构和目前的实施状态，作为一种手段，支持大型科学虚拟组织。该环境主要包括一个支持协作的用户界面，工作流系统能够提交的工作网格和基于网格的数据管理套件。整个系统通过基于网络的用户门户进行控制，可以设计和控制模拟，预览结果并与其他用户进行交流。工作流管理模块负责执行一组连续的计算作业并连接它们的输入/输出数据。该计算引擎由数据管理模块支持，该模块执行数据存储/检索任务和元数据查询。这种环境的原型部署和测试的洪水预报系统。该系统由运行气象、水文、水力模型仿真级联的工作流系统、数据管理系统和一套门户网站组成。
In this paper we present architecture and current state of implementation of a collaborative computation environment based on Grid infrastructure, used as a mean of support for large scientific virtual organizations. The environment consists primarily of a collaboration-supporting user interface, workflow system capable of submission of jobs to the Grid and a Grid-based data management suite. The whole system is controlled via a web-based user portal, which enables to design and control simulations, to preview results and to communicate with other users. The workflow management module is responsible for executing a set of consecutive computation jobs and linking their input/output data. This computation engine is backed by a data management module, which performs data storage/retrieval tasks and metadata queries. A prototype of such an environment is deployed and tested for a flood forecasting system. The system consists of workflow system for executing simulation cascade of meteorological, hydrological and hydraulic models, data management system and a set of web portals.