面向CFD的交互式并行化系统Paractive

该文介绍了面向计算流体力学(CFD)的交互式并行化系统Paractive以及Paractive系统实现时所采用的关键技术。该文根据CFD程序及其并行化的特点提出了CFD程序并行化的区域计算模型以及区域相关的概念。区域计算模型将CFD程序看成区域操作的有序组合,区域相关则以区域操作为基本单位,区域操作本身所具有的对大块数据进行整体操作的特点,使得区域计算模型和区域相关非常适合开发CFD程序中蕴含的数据并行性。另外,该文还介绍了基于程序对象树的增量分析技术以及CFD程序并行化的静态性能预测技术,并在最后给出了使用Paractive并行化CFD实际算例的测试数据。

An Interactive Parallelizer for CFD

Paractive is an interactive parallelizer designed specially for CFD.The paper introduces characters of the system and key technology used.According to the characters of CFD programs and the specific parallelizing method,the paper presents a model named Domain-computing,in which CFD programs can be viewed as a combination of a serial of domain operations,and a new concept named Domain Dependency,which shows the data-dependency between domain operations.Domain operation is uniform operations over a data set.This character of domain operation made Domain-computing Model and Domain Dependency is suitable to exploit the data-parallelism in CFD programs.Also,the paper presents the technology of incremental analysis and static performance prediction used in Paractive.