August 9, 2026 Sol-Attn: Accelerating Video Generation Inference via On-the-Fly Attention Sparsification 训练无关动态稀疏注意力：通过查询依赖高斯校准阈值、在线 Softmax 内联稀疏化和零阶泰勒代理分数复用，在不修改权重的情况下为视频生成 DiT 提供 2.0×–5.1× 端到端加速 sparse-attention video-generation diffusion-transformer training-free online-softmax flashattention gpu-kernel inference-acceleration block-sparse approximation-correction