EXCEEDS logo
Exceeds
Cheng Jiang

PROFILE

Cheng Jiang

Contributed to the jeejeelee/vllm repository by developing and integrating high-performance backends for FP8 inference on NVIDIA Hopper GPUs, focusing on modularity and extensibility. Leveraged Python, CUDA, and PyTorch to implement expert-based MoE and attention backends, enabling FP8 quantization and bfloat16 cache support for improved throughput and reduced latency. Enhanced the attention backend with Multi-Token Prediction and dynamic scheduled attention, optimizing task scheduling and hardware utilization via the HPC library. The work emphasized maintainable architecture, seamless integration with model execution and attention registries, and readiness for production-grade deployment in high-throughput, next-generation accelerator environments.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

3Total
Bugs
0
Commits
3
Features
3
Lines of code
1,600
Activity Months2

Work History

July 2026

1 Commits • 1 Features

Jul 1, 2026

July 2026 monthly summary for jeejeelee/vllm: Implemented HPC_ATTN backend enhancements enabling Multi-Token Prediction (MTP) and dynamic scheduled attention, with FP8/bfloat16 improvements. The update adds MTP support, dynamic task scheduling via the hpc library, and improved FP8 quantization handling along with bfloat16 cache type support, enabling more efficient decoding for multi-token requests and better hardware utilization. Commit referenced: 95a248faed6781360eedcd37d6132a23f2c787da (Attention Backend] HPC_ATTN backend support mtp and dynamic scheduled attention (#47433)).

June 2026

2 Commits • 2 Features

Jun 1, 2026

June 2026 monthly summary for jeejeelee/vllm: Delivered two HPC-Ops backends enabling FP8 inference on NVIDIA Hopper GPUs and FP8 KV-cache quantization, with modular design and integration into core components such as the model executor and attention registry. These gains improve throughput, reduce latency, and set the stage for production-grade FP8 inference on next-gen accelerators.

Activity

Loading activity data...

Quality Metrics

Correctness86.6%
Maintainability86.6%
Architecture93.4%
Performance100.0%
AI Usage73.4%

Skills & Technologies

Programming Languages

No languages yet

Technical Skills

Backend DevelopmentCUDAHPCPerformance OptimizationPyTorchPythonbackendcudahpcpythonpytorch

Repositories Contributed To

1 repo

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

jeejeelee/vllm

Jun 2026 Jul 2026
2 Months active

Languages Used

No languages

Technical Skills

Backend DevelopmentCUDAPerformance OptimizationPyTorchPythonbackend