Junsung Kim

Hi! I am currently a fifth-year Ph.D. student in the Department of Electrical and Electronic Engineering at Yonsei University, advised by Prof. Won Woo Ro. My research interests lie in GPU architecture and memory systems. Currently, my work focuses on designing efficient architectural and system support for emerging AI and HPC applications running on multi-GPU, MCM-GPU, and wafer-scale platforms.

Research Interests

  • Computer Architecture
  • Performance Modeling and Simulation Methodology
  • GPU and Accelerator Architecture
  • GPU Memory Systems, UVM, Address Translation, MMU, and Cache
  • Multi-GPU, MCM GPU, Wafer-scale Systems

Email: junsung.kim@yonsei.ac.kr

Junsung Kim

Education

  • Yonsei University
    Ph.D. student in Electrical and Electronic Engineering, 2022 - Present
    Advisor: Prof. Won Woo Ro
  • Yonsei University
    B.S. in Electrical and Electronic Engineering, 2016 - 2022

Research Experience

  • University of California, San Diego (UCSD)
    Visiting Scholar in Computer Science & Engineering, Feb. 2025 - Feb. 2026
    Advisor: Prof. Yufei Ding

Publications

ArXiv
AMMA: A Multi-Chiplet Memory-Centric Architecture for Low-Latency 1M Context Attention Serving
Zhongkai Yu, Haotian Ye, Chenyang Zhou, Ohm Rishabh Venkatachalam, Zaifeng Pan, Zhengding Hu, Junsung Kim, Won Woo Ro, Po-An Tsai, Shuyi Pei, Yangwook Kang, and Yufei Ding
arXiv preprint arXiv:2604.26103, 2026
ISCA'26
(To appear) Reducing Page Faults via Invalidation-based Mapping Propagation in Multi-GPU Systems
Junsung Kim, Dongho Ha, Sungwoo Kim, Wonho Cho, Sungbin Kim, Yufei Ding, and Won Woo Ro
International Symposium on Computer Architecture (ISCA), 2026
ISCA'26
(To appear) MXFP: Microscaling Flexible Floating Point Format for Large-Scale AI Model Acceleration
Sungwoo Kim*, Sungbin Kim*, Dongho Ha, Hyunwuk Lee, Junsung Kim, Seunghyun Lee, Mingu Jung, Murali Annavaram, and Won Woo Ro
International Symposium on Computer Architecture (ISCA), 2026
ICCD'25
PIMFY: Eliminating Remote Page Walks in MCM GPUs
Junsung Kim, Sungwoo Kim, Seunghyun Jin, Won Woo Ro
The 43rd International Conference on Computer Design (ICCD), November 2025
JSA'24
SHREG: Mitigating register redundancy in GPUs
Seunghyun Jin, Hyunwuk Lee, Jonghyun Lee, Junsung Kim, and Won Woo Ro
Journal of Systems Architecture (JSA), July 2024
ISPASS'23
Early-Adaptor: An Adaptive Framework for Proactive UVM Memory Management
Seokjin Go, Hyunwuk Lee, Junsung Kim, Jiwon Lee, Myung Kuk Yoon, Won Woo Ro
International Symposium on Performance Analysis of Systems and Software (ISPASS), April 2023

Technical Skills

  • Programming Languages: Go, C/C++, Python, CUDA, Verilog HDL
  • Development Tools: MGPUSim, Accel-sim, GPGPU-Sim, Gem5
  • Research Workflow: performance analysis, simulator modification, experimental automation, trace analysis

Industry Projects

  • Develop a Framework for CPU Performance Exploration
    Samsung Electronics, 2024 - 2025
  • Development of a Memory-Centric Architecture Based on Reconfigurable PIM Devices
    Institute for Information & Communication Technology Planning & Evaluation (Korea Government), 2023
  • Development of a Large-Scale Parallel Processing Unit Architecture for Supercomputer CPUs
    Electronics and Telecommunications Research Institute (Korea Government), 2022 - 2023

Teaching Experience

  • EEE4473 Embedded System Lab.
    Teaching Assistant, Yonsei University, 2023
  • EEE3535 Operating Systems
    Teaching Assistant, Yonsei University, 2022

Honors and Awards

  • Academic Honors
    Yonsei University, 2021-2
  • Grand Prize in AIM Conference
    Yonsei University LINC+ 4th Industrial Revolution Innovation Program, 2021