Grid Workflow Optimization Regarding Dynamically Changing Resources and Conditions

摘要：

Automatic construction of workflows on the Grid currently is a hot research topic. The problems that have to be solved are manifold: How can existing services be integrated into a workflow, that is able to accomplish a specific task? How can an optimal workflow be constructed in respect to changing resource characteristics during the optimization process? How to cope with dynamically changing or incomplete knowledge of the goal function of the optimization process?-and finally: How to react to service failures during workflow execution ?In this paper we propose a method to optimize a workflow based on a heuristic A* approach that allows to react to dynamics in the environment, as changes in the Grid infrastructure and in the users requirements during the optimization process and failing resources during execution.

作者: Helmut Wanek Erich Schikuta Irfan Ul Haq

作者单位: Department of Knowledge and Business Engineering Research Lab for Computational Technologies and Applications University of Vienna Rathausstraβe 19/9, A-1010 Vienna, Austria

会议类型: 国际会议

会议名称: 第六届网格与协同计算国际会议(The Sixth International Conference on Grid and Cooperative Computing GCC 2007)

会议地点: 乌鲁木齐

会议语种:英文

页码: 757-763

在线出版日期: 2007-08-16（万方平台首次上网日期，不代表论文的发表时间）