As the distributed interactive simulation technology,the High Level Architecture(HLA)with the common Runtime Infrastructure(RTI)services has been applied to all kinds of simulation and computation areas,w hich has mor...As the distributed interactive simulation technology,the High Level Architecture(HLA)with the common Runtime Infrastructure(RTI)services has been applied to all kinds of simulation and computation areas,w hich has more interoperability and interactivity.Especially,w ith the development of hierarchical RTI softw are technology,the efficiency,flexibility,and levels of resolution etc.can be improved.How ever,updating mechanism for object management in hierarchical RTI can't supply the dynamic object subscription to the simulation operation,specially updating limitation in consistence and synchronization.Therefore,the improvement of update mechanism for object management has been proposed,and the process of w hich has been described.The results of simulation show that the improvement mechanism can achieve better updating rates and latency than traditional mechanism,considering the consistence need.展开更多
高层体系结构(High Level Architecture,HLA)/运行实时支撑环境(Run Time Infrastructure,RTI)是一种先进的仿真体系结构,由于其较好的可重用性和互操作性被广泛用作协同仿真中的仿真软总线。ADAMS作为多体动力学软件,是进行多学科联合...高层体系结构(High Level Architecture,HLA)/运行实时支撑环境(Run Time Infrastructure,RTI)是一种先进的仿真体系结构,由于其较好的可重用性和互操作性被广泛用作协同仿真中的仿真软总线。ADAMS作为多体动力学软件,是进行多学科联合仿真的常用软件,但是本身并不支持HLA/RTI,无法直接参与基于HLA/RTI的协同仿真。从分布式协同仿真需求出发,提出了一种基于Socket的ADAMS与HLA/RTI适配器实现思路,详细介绍了实现途径,并进行了验证。结果表明:该适配器的开发实现了工程应用系统在分布异构的虚拟试验运行支撑环境下的即插即用和互操作。展开更多
为提高仿真系统的运行效率,结合多核计算环境和基于反射内存网计算环境的优势,研究基于共享内存的高性能RTI(High Performance Run Time Infrastructure Based on Shared Memory,HP-RTI-SHM)系统是当前的一个热点。然而现有相关研究主...为提高仿真系统的运行效率,结合多核计算环境和基于反射内存网计算环境的优势,研究基于共享内存的高性能RTI(High Performance Run Time Infrastructure Based on Shared Memory,HP-RTI-SHM)系统是当前的一个热点。然而现有相关研究主要集中在优化通信机制等方面,其它方面还有待深入研究。在开源项目SHM-CERTI基础上,结合基于共享内存并行计算环境的特点,主要工作包括:(1)优化的软件系统结构;(2)联邦成员时戳下限计算并行优化方法;(3)联邦成员间数据交互并行优化方法;(4)基于实时操作系统的仿真任务独占式调度方法;(5)初步实现了COSIM-RTI-SHM原型系统。与SHM-CERTI的性能对比测试表明COSIM-RTI-SHM提高了仿真推进速度和仿真数据交互的速度和吞吐量。展开更多
基金Financial Support from New Century Program for Excellent Talents of Ministry of Education of China(NCET-11-1013)Program for Liaoning Innovative Research Team in University(LT2011005)
文摘As the distributed interactive simulation technology,the High Level Architecture(HLA)with the common Runtime Infrastructure(RTI)services has been applied to all kinds of simulation and computation areas,w hich has more interoperability and interactivity.Especially,w ith the development of hierarchical RTI softw are technology,the efficiency,flexibility,and levels of resolution etc.can be improved.How ever,updating mechanism for object management in hierarchical RTI can't supply the dynamic object subscription to the simulation operation,specially updating limitation in consistence and synchronization.Therefore,the improvement of update mechanism for object management has been proposed,and the process of w hich has been described.The results of simulation show that the improvement mechanism can achieve better updating rates and latency than traditional mechanism,considering the consistence need.
文摘高层体系结构(High Level Architecture,HLA)/运行实时支撑环境(Run Time Infrastructure,RTI)是一种先进的仿真体系结构,由于其较好的可重用性和互操作性被广泛用作协同仿真中的仿真软总线。ADAMS作为多体动力学软件,是进行多学科联合仿真的常用软件,但是本身并不支持HLA/RTI,无法直接参与基于HLA/RTI的协同仿真。从分布式协同仿真需求出发,提出了一种基于Socket的ADAMS与HLA/RTI适配器实现思路,详细介绍了实现途径,并进行了验证。结果表明:该适配器的开发实现了工程应用系统在分布异构的虚拟试验运行支撑环境下的即插即用和互操作。
文摘为提高仿真系统的运行效率,结合多核计算环境和基于反射内存网计算环境的优势,研究基于共享内存的高性能RTI(High Performance Run Time Infrastructure Based on Shared Memory,HP-RTI-SHM)系统是当前的一个热点。然而现有相关研究主要集中在优化通信机制等方面,其它方面还有待深入研究。在开源项目SHM-CERTI基础上,结合基于共享内存并行计算环境的特点,主要工作包括:(1)优化的软件系统结构;(2)联邦成员时戳下限计算并行优化方法;(3)联邦成员间数据交互并行优化方法;(4)基于实时操作系统的仿真任务独占式调度方法;(5)初步实现了COSIM-RTI-SHM原型系统。与SHM-CERTI的性能对比测试表明COSIM-RTI-SHM提高了仿真推进速度和仿真数据交互的速度和吞吐量。
