摘要
针对网格环境下在线调度未能全面考虑用户QoS需求的问题,从用户效用出发,提出了一种多维QoS感知的调度方法.采用加权的线性效用函数对多维QoS进行建模,并应用于在线调度中,使调度能够综合性地考虑用户QoS需求.模拟实验表明:该方法简单有效,且充分考虑用户多方面偏好,在系统吞吐率相当的情形下,用户满意度有显著提高,且平均提高了37%.
Aiming at the problem of incomplete consideration of user QoS requirements in online grid scheduling,a multi-QoS-aware scheduling approach is presented from users′ utility perspective.A weighted linear utility function is employed in the modeling of multi-QoS,and used in the online scheduling to make a comprehensive consideration of user QoS requirements.It is shown that this simple and effective approach gives sufficient consideration of user preference from many aspects.With the same system makespan,the user satisfaction is significantly improved by an average of 37 %.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2007年第S2期57-60,共4页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(60273041
60673172)
国家高技术研究发展计划资助项目(2002AA104560
2006AA01A110)
