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Zheng, Dawei
Rostock : Universität , 2018
https://doi.org/10.18453/rosdok_id00002019
http://purl.uni-rostock.de/rosdok/id00002019
In this dissertation, a Poisson solver is improved with three parts: the efficient integrated Green's function; the discrete cosine transform of the efficient integrated Green's function values; the implicitly zero-padded fast Fourier transform for charge density. In addition, the high performance computing technology is utilized for the further improvement of efficiency, such as: OpenMP API, OpenMP+CUDA, MPI, and MPI+OpenMP parallelizations. The examples and simulation results are matched with the results of the commonly used Poisson solver to demonstrate the accuracy performance.
Dissertation
Open Access
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