Research Of Grid Workflow Based On Petri-net

Grid is the next generation of distributed computing technology, it makes all geographical distribution resources belonging to different organizations (computing resources, storage resources, equipment resources, knowledge resources, etc.) to organize a unified platform for the integration and sharing of resources. To this end, the grid will have the resources and functions into packaging in the form of services, known as grid services. Specific grid application that is suitable grid services will be based on the intended application How to make these efficient organizations reliably scattered heterogeneous platform of grid services is an important research direction . Workflow technology is a business process modelling technology to businessprocesses for modelling, and related resources on the basis of the model organizations achieve operational flow. Therefore, workflow technology suited to the flow of Grid application modelling to the corresponding grid services organizations As grid dynamic nature, distribution ,isomerization unit and autonomous features, grid work have their own characteristics.In this detailed analysis grid and grid workflow ,petri-net tool for grid for workflow modelling, established suited to grid services SF-net services model, and given the corresponding formalization analytical methods to deal with workflow integration grid in the dynamics, distributed resources, such as the emergence of conflict, impact and other issues.To support grid workflow actual operation, this study will be based on the formalization SF-net Petri-net models shine upon conversion of drift-net services such as service-oriented BPEL4WS workflow description language, and given the corresponding simulation analysis.In the above study on the basis of this paper to the grid environment workflow management systems problems analysed by a mixed workflow engine, and based on this engine gives grid workflow management system reference design to support grid workflow in the grid operation. This design can better address the changing organizational structure of grid environment, cross-border issues such as owner.