基于Gem5的性能数字样机系统  

Performance Digital Prototyping System Based on Gem5

作　　者：聂曌 胥凌 文敏华 杨子怡 NIE Zhao;XU Ling;WEN Min-hua;YANG Zi yi(Xi′an Aeronautics Computing Technique Research Institute,AVIC,Xi′an 710000,China)

机构地区：[1]航空工业西安航空计算技术研究所,陕西西安710000

出　　处：《航空计算技术》2023年第2期108-112,共5页Aeronautical Computing Technique

基　　金：基础科研项目资助(JCKY2018209A001)。

摘　　要：面对当今复杂多变的国际环境,数字工程作为确保国防安全的重要工程,其战略高度不断提升。作为数字化技术的集大成者,数字工程在国防装备的设计、生产和制造中占据着举足轻重的地位,决定装备研制的成败。面对机载领域中基于物理实际硬件的仿真验证平台已无法紧跟飞速迭代的智能算法和不断涌现的新型加速器,以及滞后的功能、性能验证和固定的硬件组成对平台的扩展性和灵活性造成束缚的问题。设计并实现了一种基于Gem5的性能数字样机系统,能够缩短机载计算平台设计、研制周期,提前评估系统性能、分析定位潜在的软硬件瓶颈,达到减低研制风险、提高研制效率的目的。Facing today′s complex and changeable international environment,digital engineering as an important project to ensure national defense security,its strategic height is constantly improving.As an integrator of digital technology,digital engineering plays a pivotal role in the design,production and manufacturing of national defense equipment,which determines the success or failure of equipment development.In the airborne field,the simulation verification platform based on physical hardware can not keep up with the rapid iterative intelligent algorithms and constantly emerging new accelerators,and the delayed function and performance verification and fixed hardware composition constrain the scalability and flexibility of the platform.In this paper,a performance digital prototype system based on Gem5 is designed and implemented,which can shorten the design and development cycle of the airborne computing platform,evaluate the system performance in advance,analyze and locate the potential hardware and software bottlenecks,and achieve the purpose of reducing the development risk and improving the development efficiency.

关 键 词：数字工程 仿真验证 性能评估 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]