一种统一的网格任务层动态映射策略  

A Unified Dynamic Mapping Strategy for Grid Tasks

作　　者：刘颖[1] 夏靖波[1] 

机构地区：[1]空军工程大学电讯工程学院,陕西西安710077

出　　处：《空军工程大学学报（自然科学版）》2007年第5期56-59,共4页Journal of Air Force Engineering University(Natural Science Edition)

基　　金：陕西省自然科学基金资助项目(2004F14)

摘　　要：提出了一种统一的网格任务层动态映射策略,集成了基于MCT的立即模式和改进Suf-ferage的批模式,两种调度模式可以自适应转换。并通过引入效用函数的概念保证了用户的QoS需求。仿真实验表明该策略和基准算法相比,有较好的性能,能够更加适应动态变化的网格任务流。A unified strategy for dynamic mapping in grid computing environments is brought forward. Immediate mode and batch mode are symbiotic and can switch adaptively in this strategy, and MCT for the immediate mode mapping and an improved Sufferage algorithm for the batch mode scheduling are utilized. And the utility functions meet the requirements of diverse QoS of tasks. The experimental results indicate that the improved scheme is superior to the benchmark algorithms in performance and adaptable to the varying task flow in grid computing environments.

关 键 词：网格 动态映射 立即模式 批模式 效用函数 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]