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AMD-yanfeiwang

PROFILE

Amd-yanfeiwang

Over a two-month period, contributed to backend and quantization optimizations across the yhyang201/sglang, ping1jing2/sglang, and ROCm/aiter repositories. Refactored the Aiter Attention Backend in yhyang201/sglang to remove redundant Host-to-Device operations, reducing CPU overhead and improving GPU throughput. Enhanced quantization support in ping1jing2/sglang by adding FP4 and FP8 data types, configurable environment variables, and improved correction bias handling with bfloat16 for stability. In ROCm/aiter, implemented FP8 and MXFP4 quantized activation support for fused MOE, eliminating unnecessary re-quantization. Work demonstrated proficiency in Python, PyTorch, CUDA, and deep learning model optimization techniques.

Overall Statistics

Feature vs Bugs

75%Features

Repository Contributions

4Total
Bugs
1
Commits
4
Features
3
Lines of code
314
Activity Months2

Your Network

2243 people

Work History

March 2026

3 Commits • 2 Features

Mar 1, 2026

March 2026 performance review: Implemented key quantization enhancements and activation data-type support across two repositories to boost inference performance, expand hardware compatibility, and reduce quantization overhead. In ping1jing2/sglang, MORI EP gained FP4 dispatch and FP8 combine support, with configurable environment variables and improved quantization flow; a fix to the quark quantization path ensures correction bias uses bf16 for stability and efficiency. In ROCm/aiter, FP8 and MXFP4 quantized activation support for fused MOE eliminates redundant re-quantization when inputs are already in target format, boosting MOE throughput. These changes deliver tangible business value through higher throughput, lower latency, and broader format support, while showcasing proficiency with quantization techniques, environment-driven configurability, and cross-repo collaboration.

February 2026

1 Commits • 1 Features

Feb 1, 2026

February 2026 monthly summary for yhyang201/sglang. Key feature delivered: Aiter Attention Backend Performance Optimization by removing redundant Host-to-Device (H2D) operations, refactoring the attention path to minimize data transfers and CPU overhead. This work enhances attention compute throughput on GPU and reduces wasted compute in the critical path.

Activity

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Quality Metrics

Correctness90.0%
Maintainability85.0%
Architecture85.0%
Performance90.0%
AI Usage30.0%

Skills & Technologies

Programming Languages

Python

Technical Skills

CUDADeep LearningMachine LearningPyTorchQuantizationbackend developmentdeep learningmachine learningmodel optimizationquantization

Repositories Contributed To

3 repos

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

ping1jing2/sglang

Mar 2026 Mar 2026
1 Month active

Languages Used

Python

Technical Skills

CUDADeep LearningMachine LearningPyTorchQuantizationdeep learning

yhyang201/sglang

Feb 2026 Feb 2026
1 Month active

Languages Used

Python

Technical Skills

PyTorchbackend development

ROCm/aiter

Mar 2026 Mar 2026
1 Month active

Languages Used

Python

Technical Skills

PyTorchmachine learningquantization