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libEMM: A fictious wave domain 3D CSEM modelling library bridging sequential and parallel GPU implementation
- Publication Year :
- 2023
-
Abstract
- This paper delivers a software -- libEMM -- for 3D controlled-source electromagnetics (CSEM) modelling in fictitious wave domain, based on the newly developed high-order finite-difference time-domain (FDTD) method on non-uniform grid. The numerical simulation can be carried out over a number of parallel processors using MPI-based high performance computing architecture. The FDTD kernel coded in C has been parallelized with OpenMP for speedup using local shared memory. In addition, the software features a GPU implementation of the same algorithm based on CUDA programming language, which can be cross-validated and compared in terms of efficiency. A perspective of libEMM on the horizon is its application to 3D CSEM inversion in land and marine environment.
- Subjects :
- Physics - Geophysics
Physics - Computational Physics
Subjects
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.2304.00233
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1016/j.cpc.2023.108745