计算机科学 ›› 2017, Vol. 44 ›› Issue (8): 54-59.doi: 10.11896/j.issn.1002-137X.2017.08.010
张勋,顾春华,罗飞,常耀辉,文赓
ZHANG Xun, GU Chun-hua, LUO Fei, CHANG Yao-hui and WEN Geng
摘要： 在IaaS云环境中,资源的分配管理关键取决于如何放置虚拟机,不当的放置策略可造成资源的损耗以及更多的能耗开销。为了降低整个数据中心的资源损耗和能耗开销,建立一个多目标优化的问题模型,并提出了一种基于动态规划思想的虚拟机放置策略。策略将放置问题转化为多阶段决策的背包问题,利用动态规划的思想把背包问题划分成一系列规模更小的子问题,通过求解子问题的最优解得到原问题的最优解。仿真实验表明,该策略能大大降低数据中心的能耗,并减少资源损耗。
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