Peking University · PKU DAIR Lab

Haoyang Li.

Ph.D. student in Computer Science

I am a Ph.D. student at Peking University (PKU), advised by Prof. Bin Cui in the PKU DAIR Lab. My research focuses on systems for deep learning (DL) training and reinforcement learning (RL) post-training.

Email: 2000012918@stu.pku.edu.cn

Haoyang Li
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Projects

DL Training2024—2026

Hetu河图

Deep learning training framework

Project lead & core contributor

A general and scalable framework for heterogeneous, large-scale deep learning (DL) training.

GitHub 343
Hetu framework overview: training systems, parallelism, runtime, and compute backends
Architecture of Hetu.
RL Post-training2025—present

PSRL

Reinforcement learning post-training framework

Project lead & core contributor

An efficient framework for large language model (LLM) reinforcement learning (RL) post-training.

GitHub 14
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Education

Peking University

Ph.D. in Computer Science

Advisor: Prof. Bin Cui · PKU DAIR Lab

Peking University

Bachelor in Computing Science

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Selected awards

CIE–Tencent Ph.D. Student Research Incentive Program Hunyuan Foundation Model Track
Peking University Presidential Scholarship
Wang Yangyuan–Yang Fuqing Scholarship · Peking University Merit Student
Peking University Outstanding Research Award
Shenzhen Stock Exchange Scholarship · Peking University Merit Student
Second Prize in the Provincial High School Mathematics League (数学竞赛省二)
Second Prize in the Provincial Physics Competition (物理竞赛省二)
First Prize · NOIP (National Olympiad in Informatics in Provinces), Improvement Group (信息竞赛省一)