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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The paper presents HARD, a performance-portable compressible hydrodynamics code with radiation diffusion, implemented via FleCSI tasks and Kokkos, and verified against standard analytical test problems.
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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.
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HARD: A Performance Portable Radiation Hydrodynamics Code based on FleCSI Framework
The paper presents HARD, a performance-portable compressible hydrodynamics code with radiation diffusion, implemented via FleCSI tasks and Kokkos, and verified against standard analytical test problems.