K
Kyu-hyoun Kim
Researcher at IBM
Publications - 97
Citations - 1200
Kyu-hyoun Kim is an academic researcher from IBM. The author has contributed to research in topics: Memory refresh & Semiconductor memory. The author has an hindex of 18, co-authored 97 publications receiving 1077 citations.
Papers
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Proceedings ArticleDOI
Understanding and mitigating refresh overheads in high-density DDR4 DRAM systems
TL;DR: An analysis of DDR4 DRAM's FGR feature is conducted, and there is no one-size-fits-all option across a variety of applications, and Adaptive Refresh is presented, a simple yet effective mechanism that dynamically chooses the best FGR mode for each application and phase within the application.
Patent
Advanced memory device having improved performance, reduced power and increased reliability
Kyu-hyoun Kim,George Liang-Tai Chiu,Paul W. Coteus,Daniel M. Dreps,Kevin C. Gower,Hillery C. Hunter,Charles A. Kilmer,Warren E. Maule +7 more
TL;DR: In this paper, an advanced memory has been proposed that includes a memory array, a receiver for receiving a command and associated data, error control coding circuitry for performing error control checking on the received command, and data masking circuitry for preventing the associated data from being written to the memory array in response to the error controller coding circuitry detecting an error in the received commands.
Proceedings ArticleDOI
A 7nm 4-Core AI Chip with 25.6TFLOPS Hybrid FP8 Training, 102.4TOPS INT4 Inference and Workload-Aware Throttling
Ankur Agrawal,Sae Kyu Lee,Joel Abraham Silberman,Matthew M. Ziegler,Mingu Kang,Swagath Venkataramani,Nianzheng Cao,Bruce M. Fleischer,Michael A. Guillorn,Matthew Cohen,Silvia Melitta Mueller,Jinwook Oh,Martin Lutz,Jinwook Jung,Siyu Koswatta,Ching Zhou,Vidhi Zalani,James J. Bonanno,Robert Casatuta,Chia-Yu Chen,Jungwook Choi,Howard M. Haynie,Alyssa Herbert,Radhika Jain,Monodeep Kar,Kyu-hyoun Kim,Li Yulong,Zhibin Ren,Scot H. Rider,Marcel Schaal,Kerstin Schelm,Michael R. Scheuermann,Xiao Sun,Hung Tran,Naigang Wang,Wei Wang,Xin Zhang,Vinay Velji Shah,Brian W. Curran,Vijayalakshmi Srinivasan,Pong-Fei Lu,Sunil Shukla,Leland Chang,Kailash Gopalakrishnan +43 more
TL;DR: In this article, a 4-core AI chip in 7nm EUV technology is presented to exploit cutting-edge algorithmic advances for iso-accurate models in low-precision training and inference to achieve leading-edge power-performance.
Patent
Advanced memory device having reduced power and improved performance
Paul W. Coteus,Daniel M. Dreps,Kevin C. Gower,Hillery C. Hunter,Charles A. Kilmer,Kyu-hyoun Kim,Kenneth L. Wright +6 more
TL;DR: In this article, a memory device including a memory array storing data, a variable delay controller, a passive variable delay circuit and an output driver is used to generate a delayed clock having a time relation to the received clock as determined by the delay instruction bits.
Patent
Power management of a spare DRAM on a buffered DIMM by issuing a power on/off command to the DRAM device
TL;DR: In this paper, the authors describe a DRAM subsystem, having one or more of a semiconductor memory device having an internal memory array comprising a plurality of semiconductor dynamic random access memory (DRAM) cells arranged in a matrix of rows and columns, and provided as a memory module rank of such memory devices arranged in an array on a DIMM.