403 Efficient fluid analysis code using GPU
Kazuaki Ochiai, Yasusi Nakabayashi · Keisan Rikigaku Koenkai koen ronbunshu/Keisan Rikigaku Kouenkai kouen rombunshuu · 2009
Recently, the computational performance of GPU is improving rapidly. The technology which uses the GPU for not visualization but general purpose calculation is called GPGPU, and the research using it are performed actively. In this paper, the authors use GPU for the CFD code for improving computational performance. The bottleneck point of CFD code is the calculation of matrix-vector products. Therefore, the authors use CUDA for improving the bottleneck. After some numerical tests, the performance of the CUDA based code is compared with the original CPU based code.