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TLX Block Attention: A Warp-Specialized Blackwell Kernel for Fixed-Block Sparse Self-Attention

calendar_today May 26, 2026 person Jake Siso, Dev (Devashish) Shankar, Jackie (Jiaqi) Xu, Jacky Zhou, Darren Liu, Han Xu, Yasmine Badr, Dan Chanpuriya, Hongtao Yu, Max Leung domain pytorch

Code available at: https://github.com/facebookresearch/ads_model_kernel_library In this post, we present the design of TLX Block Attention — a Triton kernel targeting NVIDIA Blackwell GPUs that exploits compile-time knowledge of a block-diagonal…

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