Fuse Hilbert-BVH CalculateMultipoles on HW with par-execution policy

UoB-HPC / stdpar-nbody

https://research-information.bris.ac.uk/en/publications/efficient-tree-based-parallel-algorithms-for-n-body-simulations-u

MIT License

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Fuse Hilbert-BVH CalculateMultipoles on HW with par-execution policy #36

Open gonzalobg opened 3 months ago

gonzalobg commented 3 months ago

CalculateMultipoles issues one kernel per level in sequence, which enables it to run in parallel on hardware that only supports par_unseq. On hardware that can run par in parallel, we could use a similar strategy to the Concurrent Octree with a per node counter, to fuse all these kernels into one.