基于SIMD的VSIPL三角函数向量化技术研究  

Research on VSIPL Trigonometric Function Vectorization Technology Based on SIMD

作　　者：闫妍 李典 李康 周磊[1] YAN Yan;LI Dian;LI Kang;ZHOU Lei(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》2024年第5期105-109,共5页Aeronautical Computing Technique

基　　金：国家重点研发计划项目资助(2017YFB301100)。

摘　　要：为提高嵌入式信号处理软件中三角函数的计算效率,并满足软件的可移植性需求,发展一种基于单指令多数据(SIMD)技术的三角函数向量化技术,并基于向量、信号与图像处理函数库(VSIPL)标准对向量化后的三角函数进行接口实现;同时,在ARM平台上对VSIPL向量三角函数接口进行性能测试。测试结果显示该方法相比循环遍历的方式具有2倍以上的加速效果,表明方法能够显著提高三角函数的计算效率,在高性能、可移植嵌入式信号处理软件领域具有一定的工程价值。In order to improve the operation efficiency of trigonometric function in embedded signal processing software,a vectorization technology of trigonometric function based on Single Instruction Multiple Data(SIMD)is developedand the vector trigonometric function is implemented based on Vector Signal Image Processing Library(VSIPL)standard.At the same time,the performance of VSIPL vector trigonometric function is tested on ARM platform and the test results show that this method has more than twice the acceleration effect compared with loop traversal,which indicates that this method can significantly improve the calculation efficiency and has certain engineering value in the field of high performance and portable signal processing software.

关 键 词：嵌入式信号处理 向量化技术 向量三角函数 单指令多数据 向量、信号与图像处理函数库 

分 类 号：TP319[自动化与计算机技术—计算机软件与理论]