EXCEEDS logo
Exceeds
ZhichenJiang

PROFILE

Zhichenjiang

Worked on performance optimization for large-model inference in the NVIDIA/TensorRT-LLM repository, focusing on both kernel efficiency and memory bandwidth. Developed autotuning scaffolding and optimized GEMM kernels using CUDA and C++ to enable scalable Mixture of Experts (MoE) and Grouped GEMM operations, leveraging two cooperative thread arrays for improved throughput. In a subsequent phase, implemented block reduction techniques across multiple data types in tensor operation kernels, reconfiguring kernel logic to reduce memory bottlenecks and enhance bandwidth utilization. The work emphasized deep learning and GPU programming, delivering reusable infrastructure for high-throughput transformer workloads without introducing new bugs during the development period.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

2Total
Bugs
0
Commits
2
Features
2
Lines of code
2,070
Activity Months2

Your Network

1838 people

Work History

January 2026

1 Commits • 1 Features

Jan 1, 2026

January 2026 performance-focused development for NVIDIA/TensorRT-LLM centered on memory bandwidth optimization through block reduction techniques in tensor operations and Grouped GEMM. Delivered block reduction optimizations across multiple data types, retooled kernel configurations to enable block reduction, and added new block reduction functions while updating existing kernel logic to support these enhancements. This work directly supports higher throughput for transformer-style workloads by reducing memory bottlenecks. The effort aligns with TRTLLM-9831 and is implemented in the commit fae4985797b1b4bdb7683d281c19b6ff56f414f9, associated with performance improvements via TMA.RED (#10987).

December 2025

1 Commits • 1 Features

Dec 1, 2025

December 2025 — NVIDIA/TensorRT-LLM: Focused on performance optimization for large-model workloads. Delivered CuteDSL Framework Autotuning and 2CTA performance optimization, enabling autotuning for MoE and Grouped GEMM, with GEMM kernels optimized using 2CTA. No major bugs fixed this month. Impact: higher throughput and lower latency for MoE-enabled LLM inference; established autotuning scaffolding and reusable kernels for future model scales. Technologies: C++, CUDA, GEMM optimization, autotuning frameworks, MoE.

Activity

Loading activity data...

Quality Metrics

Correctness80.0%
Maintainability80.0%
Architecture80.0%
Performance100.0%
AI Usage40.0%

Skills & Technologies

Programming Languages

Python

Technical Skills

CUDADeep LearningGPU ProgrammingMachine LearningPerformance OptimizationTensorRT

Repositories Contributed To

1 repo

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

NVIDIA/TensorRT-LLM

Dec 2025 Jan 2026
2 Months active

Languages Used

Python

Technical Skills

CUDADeep LearningMachine LearningPerformance OptimizationTensorRTGPU Programming