CAST Lab

Circuits, Architecture, Systems, Technology

We aim to advance modern computer systems based on specialized hardware in the post-Moore’s law era. We conduct research in various fields of hardware design such as computer architecture, VLSI, FPGA, hardware/software co-design, and processing-in-memory with holistic design approach to improve overall system performance. Our current mission is to build a high-performance and scalable computing platform for future AI applications.

Latest Publications

J44
CAL
Hot–Cold Tiering of HBM and High Bandwidth Flash for Agentic LLM Serving
IEEE Computer Architecture Letters (CAL), 2026
Jongjin Baek, Won Ji, Seungjae Yoo, Joo-Young Kim
2026
C94
ASP-DAC
MAJOR
PaFeDSE: Pareto-Feedback-Guided Microarchitecture Design Space Exploration for Efficient Pareto Search
32nd Asia and South Pacific Design Automation Conference (ASP-DAC 2027)
Joonyong Park, Hyojeong Lee, Sejeong Yang, Joo-young Kim
2026
C93
EMNLP
TOP-TIER
The 2026 Conference on Empirical Methods in Natural Language Processing (EMNLP 2026)
Yi Chen, Hanna Hsieh, Shuhong Liu, Chuanbo Hua, Zihan Ma, Kun Wang, Joo-Young Kim
2026
C92
ASSCC
MAJOR
GAREN: A 890.9 FPS, 412 iter/s 3D Gaussian Splatting Rendering and Modeling Accelerator with Hybrid Sorting, Out of Range Filtering, and Gradient Skipping
IEEE Asian Solid-State Circuits Conference (A-SSCC), 2026
Teokkyu Suh, Junsoo Lim, Jae-Young Kim, Minjun Park, Hyunmin Choi, Jaeha Min, Sungwoong Yune, Joo-Young Kim
2026
C91
ASSCC
MAJOR
Trident: A 28nm 1.83-to-9.74 pJ/bit Multi-Parameter FHE Processor with Unified Constant Geometry Datapath for Privacy Preserving Client-Server Computing
IEEE Asian Solid-State Circuits Conference (A-SSCC), 2026
Sungwoong Yune*, Jaeho Jeon*, Adiwena Putra, Hyunjun Cho, Cuong Duong Manh, Yuntae Kim, Teokkyu Suh, Jae-Young Kim, Joo-Young Kim (*equal contribution)
2026
C90
ICCAD
TOP-TIER
APT: Accelerating Diffusion Transformers via Attention Probability-Guided Pruning and Quantization
IEEE/ACM International Conference on Computer-Aided Design (ICCAD), 2026
Sungyeob Yoo, Seeyeon Kim, Joonyong Park, Seunghee Han, Joo-Young Kim
2026

Latest News

News

Sungwoong Yune is awarded Deputy Prime Minister’s Award at 2026 AI Semiconductor Outstanding Achievement Competition

July 6, 2026
News

Prof. Joo-Young Kim appointed as a member of Y-KAST

February 25, 2026
News

Jieon Yoon and Donghyuk Kim win Gold and Bronze Prizes at the 32nd Samsung Humantech Paper Award

February 24, 2026

Selected Paper

C68
ISCA
TOP-TIER
ACM/IEEE International Symposium on Computer Architecture (ISCA), 2025
*Seunghee Han, *Soongyu Choi, Joo-Young Kim (*equal contribution)
2025
C63
ISSCC
TOP-TIER
IEEE International Solid-State Circuits Conference (ISSCC), 2025
Jaehoon Heo, Adiwena Putra, Sungwoong Yune, Jieon Yoon, Hangyeol Lee, Jihoon Kim, Joo-Young Kim
2025
C62
MICRO
TOP-TIER
ACM/IEEE International Symposium on Microarchitecture (MICRO), 2024
*Seungjae Yoo, *Hangyeol Kim, Joo-Young Kim (*equal contribution)
2024
J31
IEEE Micro
SCI Q2
IEEE Micro, 2024
Seungjae Moon, Jung-Hoon Kim, Junsoo Kim, Seongmin Hong, Junseo Cha, Minsu Kim, Sukbin Lim, Gyubin Choi, Dongjin Seo, Jongho Kim, Hunjong Lee, Hyunjun Park, Ryeowook Ko, Soongyu Choi, Jongse Park, Jinwon Lee, Joo-Young Kim
HyperAccel
2024
C53
MICRO
TOP-TIER
IEEE/ACM International Symposium on Microarchitecture (MICRO), 2023
Adiwena Putra, Prasetiyo, Yi Chen, John Kim, Joo-Young Kim
2023
J27
CACM
SCI Q1
Communications of the ACM (CACM), 2023
Ji-Hoon Kim, Sungyeob Yoo, Joo-Young Kim
2023
C44
MICRO
TOP-TIER
IEEE/ACM International Symposium on Microarchitecture (MICRO), 2022
Seongmin Hong, Seungjae Moon, Junsoo Kim, Sungjae Lee, Minsub Kim, Dongsoo Lee, Joo-Young Kim
2022

Research Partners

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