基于GPU的COONS曲面片加速计算  

Rapid Evaluation of Coons Patches Using GPU

作　　者：张勇[1] 耿楠[1] 

机构地区：[1]西北农林科技大学信息工程学院,陕西杨凌712100

出　　处：《微计算机信息》2010年第13期208-209,214,共3页Control & Automation

摘　　要：随着可编程图形处理单元(GPU)性能的增强,许多基于GPU的三维几何造型系统的应用也与日俱增。Coons曲面片作为三维建模中重要的基本单元,在农作物的建模仿真以及曲面造型中是重要的。为了适应于GPU的通用计算,对传统Coons曲面片方程进行分解,从而并行构造出Coons曲面片。通过实验表明,随着插值点数的增加,片元程序执行的时间依然保持一定程度的稳定,并没有出现明显的增加;GPU上执行时间的增长速度明显低于在CPU上的增长速度。With the performance of GPU increasing, many three-dimensional geometric modeling systems based on the GPU are used widely. Coons, a component in the three-dimensional modeling, is important in the crop modeling and simulation as well as surface modeling. In order to adapt to the general computing of GPU, a method proposed in this paper decompose the coons patches equations to build coons patches parallelism. The experimental resuh shows that the execute time of GPU keep a certain degree of stability with the number of interpolation points increasing, and the growth rate of execute time of GPU obviously less than the rate of execute time of CPU.

关 键 词：COONS曲面片 GPU 片元程序 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]