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Junsong Wang

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HiFloat4 Format for Language Model Pre-training on Ascend NPUs

It is argued that numerical format design is itself a first-class lever for stable FP4 training, and the first systematic study of FP4 LLM pretraining on energy-efficient Huawei Ascend NPUs is presented.

Mehran Taghian, Yun Peng, Xing Huang et al. · 3 citations
Preprint Aug 2026

Adaptive Matrix Multiplication for Dynamic Shapes on Ascend NPUs

This work proposes AdaptCore, an adaptive framework for universally high-performance MatMul on Ascend NPUs, which systematically decouples operator optimization into spatial tiling and instruction orchestration and integrates a composable optimization library with a deterministic analytical performance model.

Yuhang Zhou, Jianglan Peng, Qian-Yu Jiang et al. · 0 citations
Jul 2026

MXAttention: Data-Free Optimal Scaling and Pre-Normalization Quantization for MXFP4 Attention

The quadratic cost of attention is a major bottleneck in diffusion-based video generation models. MXFP4 attention provides a promising path toward efficient inference, but direct MXFP4 quantization often degrades generation quality due to two numerical issues: the clipping-underflow trade-off from power-of-two scaling...

Jianlin Yu, Jing Lin, Linghui Kong et al. · 0 citations
Preprint Aug 2026

A Thread-Register Decoupled GPU Execution Model for Efficient Tensor Computation

This work proposes FIBER, a new architecture that extends the GPU SIMT (single instruction, multiple thread) model, and extends the ISA, microarchitecture, and compiler to realize shared-register addressing, conflict-free operand delivery, and fiber-based program mapping.

Zi-Han Liu, Jingwen Leng, Yang-Jie Zhou et al. · 0 citations

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