FLUPS: a Fourier-based Library of Unbounded Poisson Solvers
Denis-Gabriel Caprace,
Thomas Gillis,
Philippe Chatelain
Abstract:A Fourier-based Library of Unbounded Poisson Solvers (FLUPS) for 2-D and 3-D homogeneous distributed grids is presented. It is designed to handle every possible combination of periodic, symmetric, semi-unbounded and fully unbounded boundary conditions for the Poisson equation. FLUPS leverages a dedicated implementation of 3-D Fourier transforms to solve the Poisson equation using Green's functions, in a fast and memory-efficient way. Several Green's functions are available, optionally with explicit regularizat… Show more
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