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DOE OSTI · 2311782

PyAlbany: A Python interface to the C++ multiphysics solver Albany

Liegeois, Kim Anne J.·Perego, Mauro·Hartland, Tucker
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Abstract

Albany is a parallel C++ finite element library for solving forward and inverse problems involving partial differential equations (PDEs). In this paper we introduce PyAlbany, a newly developed Python interface to the Albany library. PyAlbany can be used to effectively drive Albany enabling fast and easy analysis and post-processing of applications based on PDEs that are pre-implemented in Albany. PyAlbany relies on the library PyBind11 to bind Python with C++ Albany code. Here we detail the implementation of PyAlbany and showcase its capabilities through a number of examples targeting a heat-diffusion problem. In particular we consider the following: (1) the generation of samples for a Monte Carlo application, (2) a scalability study, (3) a study of parameters on the performance of a linear solver, and finally (4) a tool for performing eigenvalue decompositions of matrix-free operators for a Bayesian inference application.

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97 MATHEMATICS AND COMPUTINGAlbanyNonintrusive parameter computationsPython front-endPython interface

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Liegeois, Kim Anne J., Perego, Mauro, Hartland, Tucker. 2022-12-31. PyAlbany: A Python interface to the C++ multiphysics solver Albany. https://doi.org/10.1016/j.cam.2022.115037

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