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Add radius dispatch, CPU and CUDA kernels#591

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akihironitta wants to merge 1 commit intoport-cluster-06-knnfrom
port-cluster-07-radius
Open

Add radius dispatch, CPU and CUDA kernels#591
akihironitta wants to merge 1 commit intoport-cluster-06-knnfrom
port-cluster-07-radius

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CPU kernel uses nanoflann KD-tree radiusSearch. CUDA kernel uses
brute-force pairwise squared Euclidean distance. Supports
max_num_neighbors cap and ignore_same_index. Tests included.
@akihironitta akihironitta force-pushed the port-cluster-07-radius branch from e35b9d1 to d1c8562 Compare March 16, 2026 07:37
@github-actions github-actions bot removed the ci label Mar 16, 2026
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