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Yunjie Pan

PROFILE

Yunjie Pan

During a two-month period, Pan Yijun contributed to the pytorch/FBGEMM repository by focusing on quantization and numerical stability for deep learning inference. He implemented MX4 FP8 local scale emulation, introducing a Triton kernel for FP32 to E8M0 conversion and updating the NVFP4 quantization path to better align with MX4 matrix multiplication behavior, which improved both performance and accuracy. Additionally, he addressed a critical FP4 quantization scaling bug by correcting the scaled input calculation and enforcing FP64 precision, enhancing inference reliability. His work demonstrated depth in C++ and Python, with a strong emphasis on deep learning optimization and quantization.

Overall Statistics

Feature vs Bugs

50%Features

Repository Contributions

2Total
Bugs
1
Commits
2
Features
1
Lines of code
135
Activity Months2

Work History

October 2025

1 Commits • 1 Features

Oct 1, 2025

Monthly summary for 2025-10 focusing on feature delivery in pytorch/FBGEMM. Delivered MX4 FP8 local scale emulation with E8M0 scaling (NVFP4) by adding a new Triton kernel for FP32 to E8M0 conversion and updating the NVFP4 quantization path to mimic MX4 matrix multiplication behavior. This work improves performance and accuracy for FP8 quantization and aligns NVFP4 with MX4 expectations, enabling more accurate inference for production workloads.

September 2025

1 Commits

Sep 1, 2025

September 2025 performance summary focusing on stability and correctness of the FP4 quantization path in pytorch/FBGEMM. Delivered a critical FP4 Quantization Scaling Bug Fix that improves numerical stability and inference reliability for FP4 workloads.

Activity

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Quality Metrics

Correctness95.0%
Maintainability90.0%
Architecture95.0%
Performance85.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

C++Python

Technical Skills

Deep LearningDeep Learning OptimizationNumerical StabilityPerformance OptimizationQuantizationTriton

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

pytorch/FBGEMM

Sep 2025 Oct 2025
2 Months active

Languages Used

PythonC++

Technical Skills

Deep Learning OptimizationNumerical StabilityQuantizationDeep LearningPerformance OptimizationTriton

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