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arXiv 1802.02644math.PR
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分布式算法的概率非渐近性分析

Probabilistic Non-asymptotic Analysis of Distributed Algorithms

Nicolas Champagnat, René Schott, Denis Villemonais

摘要:

我们提出了一个新的分布式算法的概率分析。我们的方法依赖于Champagnat和Villemonais最近发展的准平稳分布(QSD)理论。我们给出了离散模型和扩散模型的死锁时间和死锁前模型分布的性质。我们的结果是非渐近的,因为它们适用于所涉及的参数(时间,资源数量,处理器数量等)的任何有限值。并反映了这些算法的真实行为,具有潜在的应用于死锁预防,这对于计算机科学中的实际应用是非常重要的。

英文摘要:

We present a new probabilistic analysis of distributed algorithms. Our approach relies on the theory of quasi-stationary distributions (QSD) recently developped by Champagnat and Villemonais. We give properties on the deadlock time and the distribution of the model before deadlock, both for discrete and diffusion models. Our results are non-asymptotic since they apply to any finite values of the involved parameters (time, numbers of resources, number of processors, etc.) and reflect the real behavior of these algorithms, with potential applications to deadlock prevention, which are very important for real world applications in computer science.

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