Inspired by distributed applications that use consensus or other agreement protocols for global coordination, we define a new computational model for parameterized systems that is based on a general global synchronization primitive and allows for global transition guards. Our model generalizes many existing models in the literature, including broadcast protocols and guarded protocols. We show that reachability properties are decidable for systems without guards, and give sufficient conditions under which they remain decidable in the presence of guards. Furthermore, we investigate cutoffs for reachability properties and provide sufficient conditions for small cutoffs in a number of cases that are inspired by our target applications.
翻译:在利用共识或其他协议协议协议协议进行全球协调的分布式应用程序的启发下,我们为参数化系统确定了一个新的计算模型,该模型以全球总体同步原始为基础,并允许全球过渡警卫使用。我们的模型概括了文献中的许多现有模型,包括广播规程和保密规程。我们表明,对于没有卫兵的系统,可实现性能是可以分化的,并提供了在卫兵在场的情况下仍然可以分解的足够条件。此外,我们还调查了可达性特性的切断,并为受我们目标应用启发的一些案例中的小切断提供了充分的条件。