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arXiv 2602.11953cs.DS
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与历史无关的负载均衡

History-Independent Load Balancing

Stony Brook University(石溪大学);Carnegie Mellon University(卡内基梅隆大学)

Michael A. Bender, William Kuszmaul, Elaine Shi, Rose Silver

AI总结:

该研究提出了一种强历史无关的动态负载均衡算法,支持插入和删除操作,保证最大负载并实现低期望回退次数。

摘要:

我们给出了一个在$n$个抽屉上运行的强历史无关的两选球-抽屉算法,支持在最多$m$个球的集合上进行插入和删除操作,同时保证最大负载为$m/n + O(1)$的高概率保证,并实现每个操作的期望回退次数为$O(\log \log (m/n))$。据我们所知,这是第一个在$m/n \ge ω(1)$的情况下实现非平凡保证的历史无关解决方案,也是第一个完全动态解决方案(无论是否历史无关)实现$O(1)$的过载情况,并且期望回退次数为$o(m/n)$。

英文摘要:

We give a (strongly) history-independent two-choice balls-and-bins algorithm on $n$ bins that supports both insertions and deletions on a set of up to $m$ balls, while guaranteeing a maximum load of $m / n + O(1)$ with high probability, and achieving an expected recourse of $O(\log \log (m/n))$ per operation. To the best of our knowledge, this is the first history-independent solution to achieve nontrivial guarantees of any sort for $m/n \ge ω(1)$ and is the first fully dynamic solution (history independent or not) to achieve $O(1)$ overload with $o(m/n)$ expected recourse.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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