摘要
为保障洪水灾变模拟系统各分布式计算资源的负载均衡,提高计算资源的利用效率,通过分析网格环境中实体之间的信任关系,本文对经典网格任务调度算法MCT进行了重新设计,提出基于信任机制的Trust MCT算法.算法分别根据MCT的特性,采用不同的划分机制划分信任值区间,对同一信任值区域的任务和资源进行匹配.实验结果表明:基于信任机制的任务调度算法可有效降低任务执行失败率,从而减少任务完成时间.
Based on the researches in trust relationship in Grid, the classical grid scheduling algorithm is redesigned ： MCT, and the Trust MCT algorithm are proposed. According to the characters of the MCT, the trust value zone is divided into several regions by different rules and the tasks are mapped to the resources in the same trust value region. Simulation results show that the miss ratio of tasks execution is reduced, therefore the completion time is decreased.
出处
《科学技术与工程》
2008年第19期5531-5534,共4页
Science Technology and Engineering
关键词
负载均衡
任务调度
安全
信任
load balancing task scheduing safety trust
