I am Sungchul Lee, a Ph.D. student in the Department of Computer Science at Yonsei University and a member of HPCP Lab, advised by Prof. Youngsok Kim.

Research Interests

• Database system acceleration using GPUs
• GPU microarchitecture & Performance modeling
• Computer architecture & System optimizations

Publications

• GJP: Fast and Efficient Join-Project Query Processing on GPUs Using Density-Aware Matrix Multiplication
  Sungchul Lee, Suhyun Lee, Hanna Cha, Chaemin Lim, and Youngsok Kim
  2027 ACM International Conference on Management of Data (SIGMOD), June 2027 (to appear)

• GCStack+GCScaler: Fast and Accurate GPU Performance Analyses Using Fine-Grained Stall Cycle Accounting and Interval Analysis
  Hanna Cha, Sungchul Lee, Jounghoo Lee, Yeonan Ha, Joonsung Kim, and Youngsok Kim
  52nd IEEE/ACM International Symposium on Computer Architecture (ISCA), June 2025

• GCStack: A GPU Cycle Accounting Mechanism for Providing Accurate Insight Into GPU Performance
  Hanna Cha, Sungchul Lee, Yeonan Ha, Hanhwi Jang, Joonsung Kim, and Youngsok Kim
  IEEE Computer Architecture Letters (CAL), Oct. 2024

• MPC-Wrapper: Fully Harnessing the Potential of Samsung Aquabolt-XL HBM2-PIM on FPGAs
  Jinwoo Choi¹, Yeonan Ha¹, Hanna Cha, Seil Lee, Sungchul Lee, Jounghoo Lee, Shin-haeng Kang, Bongjun Kim, Hanwoong Jung, Hanjun Kim, and Youngsok Kim
  32nd IEEE International Symposium on Field-Programmable Custom Computing Machines (FCCM), May 2024

Education

• Yonsei University, Seoul, South Korea
  • Ph.D. Student in Computer Science and Engineering
  • Mar. 2024 ~ Present
• Yonsei University, Seoul, South Korea
  • B.S. in Electrical and Electronic Engineering
  • Mar. 2018 ~ Feb. 2024

Projects

• DPU-Centric Datacenter Architecture for Next-Generation AI Devices
  • Institute of Information & communications Technology Planning & evaluation (IITP)
• Designing a PIM-Based NPU Architecture and FPGA Prototyping
  • Samsung Advanced Institute of Technology (SAIT)

Experiences

• Teaching Assistant
  • CSI3102-02: Architecture of Computers (Spring 2024)
  • CCO2101-01: Discrete Mathematics (Fall 2024)