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In order to meet user's QoS requirement for the implementation of grid workflow, the key tasks of the workflow were analyzed firstly, and the QoS of the whole workflow was divided into segments which are the QoS-constrained of a single task. Then, a grid workflow scheduling algorithm based on multi-objective particle swarm optimization (MOPSO) was proposed. Through both positive layering and reverse...
A grid system is a set of independent computers that enables sharing, selection and aggregation of resources for application programs. In such system, computers and resources are distributed geographically. Once the resources are expanded in terms of hardware, software, etc., there is a need to a grid that responds to various requests more quickly. In this study, we present the idea of resource grouping...
Resource discovery plays an important role in Grid. The key of Resource Discovery is organization of all information of resources and the status about systems. In currently deployed Grid systems, the information services used for resource discovery usually have been organized into centralized structure or hierarchical structure, such as China Grid, so such information model is efficient. The reason...
Grid technologies are emerging as the next generation of distributed computing, allowing the aggregation of resources that are geographically distributed across different locations. However, these resources are independent and managed separately by various organizations with different policies. This will have a major impact to users who submit their jobs to the Grid, as they have to deal with issues...
This is an introduction to the proceedings of the MWS 2007 workshop held at EDOC 2007. It first explains the motivation for and background of the workshop. Then, it contains a short description of the keynote, each long and short peer-reviewed paper, and the discussion session "impact of various execution environments on middleware for web services". After the closing statements, MWS 2007...
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