资源描述:
《哈佛体系结构下的集装箱码头操作系统计算模型与仿真分析》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、哈佛体系结构下的集装箱码头操作系统计算模型与仿真分析李斌+1,2,杨家其1(1.武汉理工大学交通学院,湖北武汉430063;2.福建工程学院交通运输系,福建福州350108)摘要:根据面向哈佛体系结构对集装箱码头物流系统进行建模优化的思想方法,对集装箱码头操作系统(ContainerTerminalOperationSystems,CTOS)的任务调度与资源分配体系与机制进行了探讨,提出了一个CTOS计算模型。在广义计算机集成制造系统的理论框架下,将CTOS的控制决策视为多控制进程间的协同并行计算,基于计算机操作系统(OperatingSystems,OS)的设计理念得出CTOS的计算概念
2、视图,进而融合OS分层、微内核、外核、虚拟机和客户/服务器计算等设计思想,建立CTOS的计算模型,并给出相应的控制决策计算框架与模式。最后,利用一个典型的集装箱码头生产作业实例,融合OS作业组织思想,自定义多种调度策略,从任务延迟、通过能力和负载均衡等角度对港口物流作业性能进行了评估和分析,对所提出计算模型的可行性和可信性进行了验证。关键词:集装箱码头操作系统;哈佛体系结构;计算模型;生产调度;负载均衡;中图分类号:TP271.8;TP278文献标识码:AComputationalModelandSimulationAnalysisforContainerTerminalOperation
3、SystemswithinHarvardArchitectureLIBin+1,2,YANGJia-qi1(1.SchoolofTransportation,WuhanUniversityofTechnology,Wuhan430063,China;2.DepartmentofTransportation,FujianUniversityofTechnology,Fuzhou350108,China)Abstract:Withinthemethodologyofmodelingandoptimizationofcontainerterminallogisticssystemsbasedon
4、Harvardarchitecture,theframeworkandmechanismoftaskschedulingandresourceallocationincontainerterminaloperationsystems(CTOS)werediscussed,thereuponakindofCTOScomputationalmodelwasproposed.Onthefundamentalprinciplesofthegeneralizedcomputerintegratedmanufacturingsystems,thecontrolanddecisioninCTOSwast
5、reatedascooperativeandconcurrentcomputationamongmulti-process,andtheconceptualperspectiveofCTOSwasobtainedbasedontheprincipalofdesignincomputeroperatingsystems(OS).Thethinkingaboutdelamination,microkernel,exokernel,virtualmachineandclient/servercomputationinOSwereintegratedtoestablishcomputational
6、modelforCTOSandthecorrespondingcontroldecisionframeworkandparadigmwaspresentedaswell.TheoperationorganizationpatterninOSwerefusedtoformseveraluser-definedschedulingpolicieswhichwereappliedtoatypicalproductioncaseatacontainerterminal,andthecontainerterminallogisticsserviceperformancewasevaluatedand
7、analyzedaccordingtothetasklatency,throughout,loadbalancingandsoon.ThatvalidatesthefeasibilityandcreditabilityoftheCTOScomputationalmodeleffectively.Keywords:containerterminaloperationsystems;Harvardarchitecture;c