A spectral-multigrid Poisson solver for spherical and cylindrical coordinates achieves second-order accuracy on uniform and logarithmic radial grids with vacuum boundary handling via screening mass and scales to 4096 cores.
The solution of poisson’s equation for isolated source distributions , volume =
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GPU-accelerated iterative Poisson solvers for self-gravity are implemented and tested in Astaroth, achieving convergence and timing performance comparable to existing methods while supporting production-scale astrophysical runs.
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A fast spectral-multigrid Poisson solver in non-Cartesian geometries
A spectral-multigrid Poisson solver for spherical and cylindrical coordinates achieves second-order accuracy on uniform and logarithmic radial grids with vacuum boundary handling via screening mass and scales to 4096 cores.
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Iterative Poisson Solvers for Self-gravity with the GPU Code Astaroth
GPU-accelerated iterative Poisson solvers for self-gravity are implemented and tested in Astaroth, achieving convergence and timing performance comparable to existing methods while supporting production-scale astrophysical runs.