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WaveAlign: Cache-Aware Query-Row Scheduling for Sparse Attention in Long-Video Generation

Dai, Zijian et al.
arXiv (All) · Papers
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Long-video generation with diffusion transformers (DiTs) produces extremely long token sequences, making attention a dominant inference bottleneck. Dynamic sparse attention reduces computation, but its realized speedup remains limited because irregular query-row execution degrades L2 cache locality
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