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Cheng Hang

PROFILE

Cheng Hang

Worked on NVIDIA/TensorRT-LLM, delivering three features over three months focused on GPU-optimized deep learning infrastructure. Developed heuristics-driven tensor parallelism for the language model head, enabling dynamic mappings based on token count and optimizing memory usage in attention data parallelism. Added nvfp4 CUDA core support for SM120 architecture, accelerating tensor computations for AI inference and training. Introduced a weight-only kernel for SM100, improving mixed input tensor operation performance. Leveraged C++, CUDA, and Python to implement these features, while updating Jenkins CI and integration tests to ensure robust validation and release readiness. No bug fixes were reported during this period.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

3Total
Bugs
0
Commits
3
Features
3
Lines of code
3,453
Activity Months3

Work History

January 2026

1 Commits • 1 Features

Jan 1, 2026

January 2026 monthly summary for NVIDIA/TensorRT-LLM. Focused on delivering a performance-oriented feature for the SM100 architecture and validating its impact on mixed input tensor computations. No major bugs fixed this month. Delivered a weight-only kernel for SM100 architecture to accelerate mixed-input tensor operations, strengthening the hardware-optimized path in TensorRT-LLM.

October 2025

1 Commits • 1 Features

Oct 1, 2025

Month 2025-10 focused on delivering GPU-optimized features for TensorRT-LLM. Key delivery: nvfp4 CUDA core support for SM120 architecture, enabling faster tensor computations for AI inference and training workloads. Major bugs fixed: none reported this month. Overall impact: improved performance and throughput for AI workloads on SM120, aligning with roadmap for next-gen GPU optimization. Technologies/skills demonstrated: CUDA core feature development, GPU-architecture optimization, code contribution and PR workflow (commit 15c293a90b9c461a78f5ed0ad5ff559947372727, PR #8620).

September 2025

1 Commits • 1 Features

Sep 1, 2025

Concise monthly summary for NVIDIA/TensorRT-LLM (2025-09) focusing on LM head TP improvements and test coverage. Delivered heuristics-driven tensor parallelism for LM head, enabling dynamic TP mappings based on token count, and refined weight slicing in attention data parallelism. Updated Jenkins CI configurations and integration tests to validate new LM head TP configurations, improving robustness and release readiness.

Activity

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Quality Metrics

Correctness93.4%
Maintainability80.0%
Architecture93.4%
Performance93.4%
AI Usage33.4%

Skills & Technologies

Programming Languages

C++CUDAGroovyPython

Technical Skills

CI/CDCUDACUDA programmingDeep LearningDeep learningDistributed SystemsGPU ProgrammingHigh-Performance ComputingModel ParallelismPerformance optimizationTensor OperationsTensor ParallelismTensorRTTesting

Repositories Contributed To

1 repo

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

NVIDIA/TensorRT-LLM

Sep 2025 Jan 2026
3 Months active

Languages Used

GroovyPythonC++CUDA

Technical Skills

CI/CDDeep LearningDistributed SystemsModel ParallelismTensor ParallelismTesting