Performance optimization of Jacobi stencil algorithms based on POWER8 architecture

Jingheng Xu, Haohuan Fu, Lin Gan, Yu Song, Hongbo Peng, Wen Shi, Guangwen Yang

Abstract: In this paper we choose the widely used Jacobi stencil algorithm as our target program to evaluate the effectiveness of tuning techniques based on the latest POWER8 processor, thus to provide optimization guidelines to similar stencil based algorithms.