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LHXuuu

PROFILE

Lhxuuu

Xulianhao Xlh contributed to the kvcache-ai/sglang and sgl-project/sglang repositories by developing and refining quantization workflows, multimodal processing, and model optimization features over five months. He implemented dynamic weights mapping and robust quantization schemes for Mixture-of-Experts (MoE) models, improving deployment stability and compatibility across diverse architectures. His work included integrating compressed tensor support and enhancing linear layer integration, using Python and PyTorch to ensure consistent quantization and efficient model performance. Xulianhao also expanded multimodal capabilities by adding Kimi K25 EPD support, addressing image processing and grid dimension challenges to enable production-ready deployment for new hardware.

Overall Statistics

Feature vs Bugs

67%Features

Repository Contributions

6Total
Bugs
2
Commits
6
Features
4
Lines of code
1,238
Activity Months5

Your Network

784 people

Shared Repositories

663
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Work History

April 2026

1 Commits • 1 Features

Apr 1, 2026

April 2026 monthly summary for sgl-lang repository. Key accomplishment: Implemented Kimi K25 EPD support for multimodal processing by integrating Kimi K25-specific handling, including adjustments to grid dimensions and image processing. The work is captured in commit 42ffb168b3118a18713002b93c4e48dfb8257475 with PR #22269 and a signed-off contribution. This expands model compatibility, enabling production-ready deployment paths for Kimi K25-based multimodal workloads and aligns with the roadmap to broaden EPD-enabled capabilities.

February 2026

1 Commits • 1 Features

Feb 1, 2026

February 2026 monthly summary for kvcache-ai/sglang focused on strengthening MoE quantization robustness and integration to deliver more reliable, efficient, and scalable models. Delivered enhancements to compressed-tensors MoEs, expanded support for fused MoE layers, and ensured consistent quantization schemes across layers, with improved integration of linear layers into the MoE framework to boost model performance in production.

January 2026

1 Commits

Jan 1, 2026

January 2026 monthly summary for kvcache-ai/sglang focused on stabilizing quantization for BailingMoEModelNextN. Implemented a quantization stability fix in the eh_proj layer that mitigates quantization-induced training instability and performance regressions. The change aligns with PR #17808, captured in commit 0e4d9ddbd6b5146e6664899c93255777e01d758e, and includes a sign-off by LHXuuu.

December 2025

1 Commits • 1 Features

Dec 1, 2025

December 2025: Implemented Dynamic Weights Mapping for Quantization Loader in kvcache-ai/sglang, introducing WeightsMapper to map weight names in quantization configurations and enable dynamic updates to module names for robust quantization loading across diverse model architectures. This work improves compatibility with the sglang model structure and reduces manual intervention when deploying quantized models. Additionally, fixed issues in qwenvl compressed tensors quantization weight loader, stabilizing loading behavior across architectures (commit 712f44ee2b5bdd7a04740d3c6d12398a4f4d1d29; #11914).

November 2025

2 Commits • 1 Features

Nov 1, 2025

November 2025 monthly summary: Delivered one bug fix and one feature across two repositories, delivering tangible business value and strengthening the codebase. Key outcomes include removing a duplicate import to improve maintainability in kvcache-ai/sglang, and enabling compressed tensor support for the VLLM Ascend engine with W8A8 formats, including a new configuration class and quantization updates for static and dynamic weights. These changes align with the LLM Compressor workflow and prepare the stack for more efficient, hardware-accelerated deployments on Ascend. The work demonstrates strong code hygiene, configuration-driven design, and cross-team collaboration.

Activity

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Quality Metrics

Correctness86.6%
Maintainability83.4%
Architecture86.6%
Performance83.4%
AI Usage43.4%

Skills & Technologies

Programming Languages

Python

Technical Skills

Code refactoringDeep LearningMachine LearningModel OptimizationPyTorchPythonPython DevelopmentPython developmentQuantizationSoftware maintenancedeep learningimage processingmultimodal processing

Repositories Contributed To

3 repos

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

kvcache-ai/sglang

Nov 2025 Feb 2026
4 Months active

Languages Used

Python

Technical Skills

Code refactoringPython developmentSoftware maintenanceDeep LearningMachine LearningModel Optimization

vllm-project/vllm-ascend

Nov 2025 Nov 2025
1 Month active

Languages Used

Python

Technical Skills

Deep LearningMachine LearningPythonQuantization

sgl-project/sglang

Apr 2026 Apr 2026
1 Month active

Languages Used

Python

Technical Skills

PyTorchdeep learningimage processingmultimodal processing