Abstract: The resource scheduling problem in cloud computing environment is discussed. According to the characteristics of the cloud computing environment, the tasks structure and the  node failure, a mathematical resource scheduling model is established. The discrete particle swarm algorithm is used to solve the problem. The simulation test example is created according to the facts of the cloud computing service operation and the verification shows that the model is rational and the algorithm is feasible and effective.

Key words: cloud computing, resource scheduling, particle swarm algorithm, creditability, Weibull distribution

摘要： 对云计算环境下的资源调度问题进行了研究。针对云计算环境下资源调度的特点，结合节点失效以及任务间的网状结构特点，建立资源调度问题数学模型，运用离散粒子群算法求解该问题。针对模型特点结合云计算服务运营实情，设计算例进行仿真测试。验证表明了所建立模型的合理性及该算法求解的可行性和有效性。

关键词: 云计算, 资源调度, 粒子群算法, 可信度, 韦伯分布