SageAttention3: Microscaling FP4 Attention for Inference and An Exploration of 8-Bit Training - Zhang, Jintao; wei, Jia; Wang, Haoxu; Zhang, Pengle; Xu, Xiaoming; Huang, Haofeng; Jiang, Kai; Chen, Jianfei; Zhu, Jun (Advances in Neural Information Processing Systems, 2025)