A cuda based P-SV wave propagation program using hybrid PSM/FDM method. It calculates the horizonal spacial derivatives with pseudo-spectral method, and vertical spacial derivatives with 4th order staggered grid finite difference method. The original program was written in fortran by Yanbin Wang. I rewrote the program in C and then converted it to cuda C, so there's a direct comparison between its CPU and GPU version that illustrates the benefits of GPU. This work was published on Acta Seismologica Sinica.
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Speedup compared to CPU version(Intel core i5-4570, Nvidia GTX 750)
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Synthetic seismograms in Lanzhou basin model
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Wavefied snapshots
