Converted-wave Kirchhoff prestack time migration based on CUDA
Sinopec Key · Shiyou diqiu wuli kantan · 2013
Because of large simulation calculation and time consumption,the process of converted-wave(C-wave)Kirchhoff prestack time migration is an low-efficient data processing method and its application is restricted.CPU-cluster computing is applied widely at present;however CPU-clusters have some problem such as high power consumption,large space occupation,and high maintenance costs.For improving the efficiency and reducing the computing cost,we propose in this article a parallel algorithm of C-wave Kirchhoff prestack time migration based on CUDA.Theoretical and real C-wave data tests on the GPU and CPU platforms show that this algorithm is a high performance and low cost C-wave Kirchhoff prestack time migration method as it can improve the calculation efficiency by 100times.