Coupling a basin modeling and a seismic code using MOAB

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We report on a demonstration of loose multiphysics coupling between a basin modeling code and a seismic code running on a large parallel machine. Multiphysics coupling, which is one critical capability for a high performance computing (HPC) framework, was implemented using the MOAB open-source mesh and field database. MOAB provides for code coupling by storing mesh data and input and output field data for the coupled analysis codes and interpolating the field values between different meshes used by the coupled codes. We found it straightforward to use MOAB to couple the PBSM basin modeling code and the FWI3D seismic code on an IBM Blue Gene/P system. We describe how the coupling was implemented and present benchmarking results for up to 8 racks of Blue Gene/P with 8192 nodes and MPI processes. The coupling code is fast compared to the analysis codes and it scales well up to at least 8192 nodes, indicating that a mesh and field database is an efficient way to implement loose multiphysics coupling for large parallel machines. © 2012 Published by Elsevier Ltd.




Yan, M., Jordan, K., Kaushik, D., Perrone, M., Sachdeva, V., Tautges, T. J., & Magerlein, J. (2012). Coupling a basin modeling and a seismic code using MOAB. In Procedia Computer Science (Vol. 9, pp. 986–993). Elsevier B.V.

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