一种面向应用的网络体系结构

网络发展到面向应用的阶段,传统面向系统互连的网络体系结构已经不能满足各种以高性能为评价指标的网络应用需求.在分析了计算机网络体系结构的发展历史及传统网络体系结构不足的基础上,讨论了下一代网络体系结构需要解决的问题,提出了一种面向应用的应用层主动网络(ALAN)体系结构模型,该模型通过增加用户层实现对用户的管理和支持用户的可移动性,通过应用层的主动网络技术,解决目前网络无法提供服务定制的难题.     

A Hybrid Task Scheduling Algorithm in Grid

Task scheduling in Grid has been proved to be NP- complete problem. In this paper, to solve this problem, a Hybrid Task Scheduling Algorithm in Grid （HTS） has been presented, which joint the advantages of Ant Colony and Genetic Algorithm.Compared with the related work, the result shows that the HTS algorithm significantly surpasses the previous approaches in schedule length ratio and speedup.