面向超大规模有限元计算的通用可视化系统SiPESC.POST的设计与实现

针对有限元计算规模日益增大,应用领域不断扩展的设计需求,设计并实现了具有开放性的通用可视化系统,目标是面向百万/千万节点以上的超大规模有限元的计算可视化。在软件框架设计方面,引入流式体系结构,该体系结构具有高效计算和高效通信特性,满足大规模数据处理需求。在软件实现方面,采用工厂方法设计模式和插件技术,提高了系统的可扩展性和灵活性。设计并实现了有限元模型、渲染器和过滤器等模块。在大规模数据可视化方面,提出模型数据、结果数据的设计方案和管理机制,并采用VBO和分批载入技术,实现了超大规模模型的实时显示功能。通过多个模型实例展示了该系统的可行性与优越性。

Design and implementation of general visual system SiPESC.POST for large scale finite element computation

As to the increasing requirements for computational scale and expanding application areas of finite element method,an open general visual system is designed and implemented.The visual system is developed for large scale finite element computation visualization with over millions of or tens of millions of nodes.In the architecture design, the stream architecture is introduced.This architecture has the characteristics of high efficiency for both computation and communication,which meets the needs of large scale data processing.In the software implementation,factory method pattern and plug-in technology are employed which improve the expansibility and flexibility of the system.Several modules,like finite element model module,filter module and render module,are designed and implemented.In the large scale data visualization,using VBO and partial load,the large scale model can be displayed in real time.Several model examples are presented to show the feasibility and superiority of the system.