在纸,基于工作特征和资源可获得性,为动态格子(OCM4G ) 的乐观检查点机制被建议。它能决定是否到检查点在一个给定的资源节点上跑的一个给定的工作并且由使用工作特征和资源可获得性的知识建立最佳的非周期的检查点间隔。我们在真实格子环境(ChinaGrid ) 上评估 OCM4G,结果证明 OCM4G 比周期的检查点和精明的非周期的检查点间隔的分析方法完成更好的性能。
In the paper, based on the job characteristics and resources availability, an optimistic checkpoint mechanism for dynamic grids(OCM4G) is proposed. It can determine whether to checkpoint a given job running on a given resource node and establish optimal aperiodic checkpoint intervals by applying the knowledge of job characteristics and resource availability. We evaluate OCM4G over a real grid environment (ChitlaGrid) and the results show that OCM4G achieves better performance than the periodic checkpoint and the analytical method of calculating aperiodic checkpoint intervals.