网格资源三层调度模型研究

在分析现有的资源调度方案及模型的基础上,提出了基于层次化的网格资源三层调度模型,它由主调度器、次级调度器和计算节点组成.主调度器根据任务的性质和需求,并参考下层次级调度器的执行情况,将部分任务分发到各次级调度器上,实现了主调度器与次级调度器之间的并行工作.基于该模型提出轮循任务分发策略.通过分析和模拟,该资源调度模型及任务分发策略在调度性能上明显优于集中式调度方案.

Research on the Three-level Scheduling Model of Grid Resource

On the basis of analyzing existing resource scheduling plan and model,a scheduling model with three-level of grid resource is raised,which include a main scheduler,a secondary scheduler and computing node.The main scheduler dispatches a portion of tasks to the low-level schedulers according to the requests of tasks and the execution performance of low-level schedulers,which actualizes the parallelism of task scheduling.A rotational task distributing strategy based on the model is proposed.By doing some analysis and simulation,the proposed resource scheduling model and the task distributing strategy are better than centralizing strategy on scheduling performance.