关键词: 网格调度, 风险模型, 算法, 体系结构, grid scheduling, risk model, algorithm, architecture

Abstract: Scheduling reliability not only depends on resources but also environment of correlation task and resource in grid. For the reliability problem, the author considered the influence of environment as risk, and proposed a risk model based on network congestion, virus alarm signal and system reliability and its risk infrastructure. The risk evasion scheduling algorithm of the model was put forward based on trust degree. Experiments show that the risk evasion scheduling algorithm is efficient in reducing risk and significantly improves the success rate of the scheduling.