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A relax-and-round optimization algorithm for online NUMA-aware virtual machine placement

delete2025-05-01
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PRE
AI
J
Jianchen Hu *
K
Kang Liu
Y
Yuexian Zhang
Z
Zhai, Qiaozhu
C
Cao, Xiaoyu
Z
Zhu, Lei
S
Su, Li
Z
Zhou, Wenli
X
Xia, Yi
G
Gao, Feng
DOI:10.1016/j.eswa.2025.126653delete
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摘要

摘要

En 中文
虚拟机(VM)放置算法的性能直接关系到云服务运营商的经济利润。由于高实时计算需求,当前基于优化的方法需要求解整数规划问题,无法在线实现大规模问题的应用。我们提出了一种高效的松弛-舍入优化算法来解决这个问题。首先,我们提出了一种虚拟机放置模型,其目标是通过最大化资源池的剩余资源价值,从而为未知的未来虚拟机需求预留资源。其次,我们通过引入指定NUMA节点的额外决策变量来处理非均匀内存访问(NUMA)结构。最后,我们提出了一种启发式松弛-舍入算法,能够高效求解整数规划问题,并保证约束条件的满足。所提出的方法在HUAWEI云平台上进行了测试。结果显示,所提出方法在性能上明显优于当前的近似或智能优化方法(如Best-Fit、First-Fit、深度强化学习等),与精确方法相当,但计算效率远高于精确方法。
Keyword:
VM placement
NUMA structure
Optimization-based approach
LP relaxation
Heuristic algorithm

期刊

Expert Systems with Applications 封面图
Expert Systems with Applications
IF:
7.5
论文数:
3.0W
被引数:
10.2W

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