关键词: 云计算, 虚拟集群, 在线迁移, 并行作业, 资源整合, 资源碎片

Abstract:

In view of the internal correlation of virtual cluster and the running feature of parallel jobs, we proposed a virtual resource consolidation algorithm based on virtual cluster live migration. Firstly, we modeled the system and described the virtual resource consolidation problem in cloud computing environment. Secondly, we used region division to classify heterogeneous resources so as to reduce the size and complexity of the problem. Finally, we proposed a FFD_grp algorithm for virtual cluster migration in the homogeneous subdomains. We used the same load and various resource allocation methods to simulate a wide variety of resource usage, and then vertified FFD_grp algorithm. The experimental results show that it can significantly improve the effect of resource consolidation and restrain the occurrence of resource fragment.

Key words: cloud computing, virtual cluster, live migration, parallel job, resource consolidation, resource fragment