A point transformer that combines perfect spatial hashing with FlashAttention to align geometric neighborhoods with GPU memory tiles achieves 2.25x faster inference and better semantic segmentation than PTv3.
Perfect hashing
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Flash3D: Super-scaling Point Transformers through Joint Hardware-Geometry Locality
A point transformer that combines perfect spatial hashing with FlashAttention to align geometric neighborhoods with GPU memory tiles achieves 2.25x faster inference and better semantic segmentation than PTv3.