Hi, I'm Junyeol (June) Ryu. I am a first year Ph.D. student in CS at University of Wisconsin-Madison advised by Ming Liu and Matt Sinclair. Before that, I earned my B.S. and M.S. in CSE at Seoul National University working with Jaejin Lee.

I research in co-designing transport layer with accelerator architectures. Recently, I work on (1) chiplet architectures and interconnects and (2) communication in server infrastructure.

You can find my full CV here.
Please contact me through jyeol.ryu@gmail.com.

Publication

• SPipe: Hybrid GPU and CPU Pipeline for Training LLMs under Memory Pressure
  Junyeol Ryu^*, Yujin Jeong^*, Daeyoung Park, Jinpyo Kim, Heehoon Kim, Jaejin Lee
  Preprint 2025
• TCCL: Discovering Better Communication Paths for PCIe GPU Clusters
  Heehoon Kim, Junyeol Ryu, Jaejin Lee
  ASPLOS 2024
• Network Contention-Aware Cluster Scheduling with Reinforcement Learning
  Junyeol Ryu, Jeongyoon Eo
  IEEE ICPADS 2023

Honors and Awards

• Grand Prize in Samsung Computer Engineering Challenge 2023
  Fastest inference of HellaSwag with LLaMA 30B on single machine with four NVIDIA V100 GPUs