用Optorsim仿真数据网格中调度和复制优化策略

Simulation of scheduling and replica optimization strategies with optorsim in data grid

数据网格中,调度和复制优化策略的好坏直接影响网格资源的使用性能。在将优化策略应用于网格之前,通常使用仿真环境对其进行评估。本文选取网格模拟器Optorsim2.0仿真动态网格环境。仿真模型使用不同的作业调度和复制优化策略来衡量其对网格性能的影响,并根据网格性能评价指标对仿真结果进行了分析。

The stand or fall of scheduling and replica optimization strategies directly effect on the use of grid resources in data grid. It is important to simulate them as realistically as possible before they are used on real grids. In this paper,. The simulation model uses grid simulator OptorSim2.0 to test several scheduling and replica optimization strategies and to evaluate them with a set of performance metrics.