A GPU-resident method uses local ray casting through spatial bins to voxelize and refine around stationary triangle meshes in forest-of-octrees grids, supporting accurate interpolated bounce-back boundaries for LBM with modest overhead.
P4est : Scalable Algorithms for Parallel Adaptive Mesh Refinement on Forests of Octrees
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foap4 shows that adaptive mesh refinement for Euler gas dynamics runs efficiently on GPUs via OpenACC and MPI even with small 8^3 or 16^3 cell blocks.
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GPU-native Embedding of Complex Geometries in Adaptive Octree Grids Applied to the Lattice Boltzmann Method
A GPU-resident method uses local ray casting through spatial bins to voxelize and refine around stationary triangle meshes in forest-of-octrees grids, supporting accurate interpolated bounce-back boundaries for LBM with modest overhead.
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foap4: Adaptive mesh refinement with OpenACC, MPI, and p4est
foap4 shows that adaptive mesh refinement for Euler gas dynamics runs efficiently on GPUs via OpenACC and MPI even with small 8^3 or 16^3 cell blocks.