Liu Changxi

Liu Changxi

CPU/GPU Architecture and Simulation

Personal Information

I am an Assistant Professor in the Microelectronics Thrust at HKUST (Guangzhou). I was a Research Fellow at the National University of Singapore. I received my PhD from the School of Computing at NUS, where I conducted research on CPU/GPU architecture and simulation under the supervision of Dr. Trevor E. Carlson.

Before joining NUS, I earned both my bachelor’s and master’s degrees from the School of Computer Science and Engineering at Beihang University (BUAA), where I focused on high-performance computing and compiler technology under the supervision of Dr. Hailong Yang.

My current research interests include:

  • CPU/GPU/XPU microarchitecture
  • CPU/GPU/XPU simulation
  • High-performance computing and AI infrastructure, especially LLM and agent systems
  • Compiler and microarchitecture co-design

I am recruiting PhD students for my lab. If you are interested, please contact me. For more details about the program requirements, please see here.

I have also collaborated closely with Dr. Yifan Sun at William & Mary on GPU architecture and simulation, as well as with Dr. Xu Liu at North Carolina State University on high-performance computing.

My work has been integrated into several widely used simulation projects. For example, PacSim has been merged into Sniper, a well-known multi-core CPU simulator, and Photon has been incorporated into MGPUSim, a high-performance GPU simulator that supports multi-GPU simulation.