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An example of modeling and evaluation of a concurrent program using colored stochastic Petri nets: Lamport's fast mutual exclusion algorithm

机译:使用彩色随机Petri网对并发程序进行建模和评估的示例:Lamport的快速互斥算法

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摘要

A colored generalized stochastic Petri net (CGSPN) model was used to study the correctness and performance of the Lamport concurrent algorithm to solve the mutual exclusion problem on machines lacking an atomic test and set instruction. In particular, a parametric formal proof of liveness is developed based on the structure and initial state of the model. The performance evaluation is based on a Markovian analysis that exploits the symmetries of the model to reduce the cost of the numerical solution. Both kinds of analysis are supported by efficient algorithms. The potential of the GSPN modeling technique is illustrated on an academic but nontrivial example of an application from distributed systems.
机译:使用彩色广义随机Petri网(CGSPN)模型研究Lamport并发算法的正确性和性能,以解决缺少原子测试和设定指令的机器上的互斥问题。特别是,根据模型的结构和初始状态开发了参数化的形式化活度证明。性能评估基于马尔可夫分析,该分析利用模型的对称性来减少数值求解的成本。高效的算法支持两种分析。 GSPN建模技术的潜力在分布式系统应用的一个学术性但非平凡的例子中得到了说明。

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