We have designed a fast parallel simulator that solves the acoustic wave equation on a GPU cluster. Solving the acoustic wave equation in an oil exploration industrial context aims at speeding up seismic modeling and Reverse Time Migration. We consider a finite difference approach on a regular mesh, in both 2D and 3D cases. The acoustic wave equation is solved in either a constant density or a variable density domain. All the computations are done in single precision, since double precision is not required in our context. We use CUDA to take advantage of the GPUs computational power. We study different implementations and their impact on the application performance. We obtain a speed up of 10 for Reverse Time Migration and up to 30 for the modeling application over a sequential code running on general purpose CPU.
al. REF designed a parallel simulator in order to solve the acoustic wave equation on a GPU cluster, using a finite difference approach in both 2D and 3D cases.
Fast seismic modeling and Reverse Time Migration on a GPU cluster
2009 International Conference on High Performance Computing & Simulation
2009 International Conference on High Performance Computing & Simulation
Computer Science