Seismic Prestack Depth Migration by MPI_PSPI

Subsurface depth imaging requires high performance computing hardware and techniques. PSPI (Phase Shift Plus Interpolation) method for subsurface imaging is widely used in reflection exploration, since it has less computing efforts and efficiency. Here we implemented parallelized PSPI for prestack depth migration using MPI (Message Passing Interce) LAM. MPI is library for high performance parallel programms that pass messages between processes to make up an overall parallel job. A simple disk velocity model shows that MPI_PSPI reduce the computing time and good subsurface image.