Research On Meta-Scheduler System Based On Virtual Computing Environment

The grid technology has provided a good platform for resources sharing and large-scale computation application, but grid environment is dynamic and isomeric which gave the grid scheduling some difficulty, thus the grid scheduling problem is one key and the difficulty of grid technology in the world. Based on the large-scale science and the engineering calculation, this article designs a grid scheduling platform system which suited the earthquake data processing, The goal is to provide stably, transparent and convenient grid submission environment for the user, to run the tasks in the appropriate grid resources fast and effectively. By researching the virtual computing environment theory (iVCE) and the grid technology, this article proposed a kind of auto-adapted scheduling model construction with level graduation. It has high extendibility, and can adapt the resources dynamic changes. Moreover, based on the demand of grid scheduling function, we designed a kind of grid Meta-scheduler, and has carried on detailed design and elaboration to its each module. While selecting the dispatch strategy, in view of the complex earthquake data processing flow, we specially researched the related tasks scheduling, and presented a related task scheduling algorithm, which based on virtual clusters and the division of task. This algorithm has fully considered the influence of heterogeneous grid environment and obtained better scheduling effects.