并行离散事件模拟的同步机制研究

逻辑模拟在设计新系统的过程中起着重要作用，通过计算机进行模拟可以实时反馈输出结果，及早发现潜在的问题，进而缩短设计周期，降低研发成本。并行离散事件模拟通过分散计算量到并行机或者网络的多个节点来减少模拟时间，被视为解决模拟速度问题的有效途径。在影响模拟性能的因素中，各并行子系统之间的同步问题是直接影响并行性能的关键因素之一。探讨了并行离散事件模拟的同步机制，介绍了其基本原理、特点及存在的问题，并阐述了可能的改进方法。

Survey on synchronization mechanism in parallel discrete event simulation

Logic simulation plays an important role in the design of new systems,the output results are obtained on time with simulation,and the potential problems are found as earlier as possible,which can shorten the design cycle,then reduce the research costs.PDES(parallel discrete event simulation) could decrease the simulation time by distributing the workload among nodes of parallel computer or network.Therefore,PDES is regarded as an effective approach to solve the problem of simulation performance.Meanwhile,syn-chronization of different subsystems is one of the main factors that directly influence the parallel simulation performance.Some syn-chronization protocols,including their principle,feature,and existing problem are discussed.Meanwhile some possible improvement are proposed.