Parallel FFT-based Poisson Solver for Isolated Three-dimensional Systems

Details Parallel FFT-based Poisson Solver for Isolated Three-dimensional Systems Parallel FFT-based Poisson Solver for Isolated Three-dimensional Systems

2011-06-03

arxiv.org/abs/1106.0557v1

Physics

Computational Physics

15 pages, 19 figures, accepted for publication in Computer Physics Communications

Scientific paper

10.1016/j.cpc.2011.05.014

We describe an implementation to solve Poisson's equation for an isolated system on a unigrid mesh using FFTs. The method solves the equation globally on mesh blocks distributed across multiple processes on a distributed-memory parallel computer. Test results to demonstrate the convergence and scaling properties of the implementation are presented. The solver is offered to interested users as the library PSPFFT.

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