Donghyuk Lee ![](/sites/default/files/person/donghyuk.jpg) Donghyuk Lee is a research scientist in the Architecture Research Group. The primary research focus is enabling high bandwidth and energy efficient memory systems in future GPUs. Research Area(s) [Circuits and VLSI Design](/research-area/circuits) [High Performance Computing](/research-area/high-performance-computing) [Resilience and Safety](/research-area/resilience) Main Field of Interest [Computer Architecture](/research-area/computer-architecture) Google Scholar [https://scholar.google.com/citations?user=UYSr2vIAAAAJ&hl=en](https://scholar.google.com/citations?user=UYSr2vIAAAAJ&hl=en) ### Publications ### 2022 [Saving PAM4 Bus Energy with SMOREs: Sparse Multi-level Opportunistic Restricted Encodings](/publication/2022-04_saving-pam4-bus-energy-smores-sparse-multi-level-opportunistic-restricted) [Mike O'Connor](/person/mike-o-connor), [Donghyuk Lee](/person/donghyuk-lee), [Niladrish Chatterjee](/person/niladrish-chatterjee), [Michael B. Sullivan](/person/mike-sullivan), [Steve Keckler](/person/stephen-keckler) [International Symposium on High-Performance Computer Architecture (HPCA)](https://ieeexplore.ieee.org/document/9773229) [Characterizing and Mitigating Soft Errors in GPU DRAM](/publication/2022-03_characterizing-and-mitigating-soft-errors-gpu-dram) [Michael B. Sullivan](/person/mike-sullivan), Nirmal R. Saxena, [Mike O'Connor](/person/mike-o-connor), [Donghyuk Lee](/person/donghyuk-lee), Paul Racunas, Saurabh Hukerikar, Timothy Tsai, [Siva Kumar Sastry Hari](/person/siva-hari), [Stephen W. Keckler](/person/stephen-keckler) [IEEE Micro (Issue: Top Picks of the 2021 Computer Architecture Conferences)](https://ieeexplore.ieee.org/document/9744333) ### 2021 [Characterizing and Mitigating Soft Errors in GPU DRAM](/publication/2021-10_characterizing-and-mitigating-soft-errors-gpu-dram-0) [Michael B. Sullivan](/person/mike-sullivan), Nirmal Saxena, [Mike O'Connor](/person/mike-o-connor), [Donghyuk Lee](/person/donghyuk-lee), Paul Racunas, Saurabh Hukerikar, Timothy Tsai, [Siva Hari](/person/siva-hari), [Steve Keckler](/person/stephen-keckler) [International Symposium on Microarchitecture (MICRO)](https://dl.acm.org/doi/10.1145/3466752.3480111) IEEE Micro Top Picks in Computer Architecture [Learning Sparse Matrix Row Permutations for Efficient SpMM on GPU Architectures](/publication/2021-03_learning-sparse-matrix-row-permutations-efficient-spmm-gpu-architectures) Atefeh Mehrabi, [Donghyuk Lee](/person/donghyuk-lee), [Niladrish Chatterjee](/person/niladrish-chatterjee), Danial J. Sorin, Benjamin C. Lee, [Mike O'Connor](/person/mike-o-connor) [International Symposium on Performance Analysis of Systems and Software (ISPASS)](https://ieeexplore.ieee.org/document/9408181) ### 2019 [Near-Memory Data Transformation for Efficient Sparse Matrix Multi-Vector Multiplication](/publication/2019-11_near-memory-data-transformation-efficient-sparse-matrix-multi-vector) Daichi Fujiki, [Niladrish Chatterjee](/person/niladrish-chatterjee), [Donghyuk Lee](/person/donghyuk-lee), [Mike O'Connor](/person/mike-o-connor) [International Conference for High-Performance Computing, Networking, Storage, a…](https://dl.acm.org/doi/10.1145/3295500.3356154) [DeLTA: GPU Performance Model for Deep Learning Applications with In-depth Memory System Traffic Analysis](/publication/2019-04_delta-gpu-performance-model-deep-learning-applications-depth-memory-system) Sangkug Lym, [Donghyuk Lee](/person/donghyuk-lee), [Mike O'Connor](/person/mike-o-connor), [Niladrish Chatterjee](/person/niladrish-chatterjee), Mattan Erez [arXiv](https://arxiv.org/abs/1904.01691) [DeLTA: GPU Performance Model for Deep Learning Applications with In-depth Memory System Traffic Analysis](/publication/2019-03_delta-gpu-performance-model-deep-learning-applications-depth-memory-system) Sankug Lym, [Donghyuk Lee](/person/donghyuk-lee), [Niladrish Chatterjee](/person/niladrish-chatterjee), [Mike O'Connor](/person/mike-o-connor), Mattan Erez [International Symposium on Performance Analysis of Systems and Software (ISPASS)](https://ieeexplore.ieee.org/document/8695646) ### 2018 [What Your DRAM Power Models Are Not Telling You: Lessons from a Detailed Experimental Study](/publication/2018-07_what-your-dram-power-models-are-not-telling-you-lessons-detailed-experimental) Saugata Ghose, Abdullah Giray Yağlıkçı, Raghav Gupta, [Donghyuk Lee](/person/donghyuk-lee), Kais Kudrolli, William X. Liu, Hasan Hassan, Kevin K. Chang, [Niladrish Chatterjee](/person/niladrish-chatterjee), Aditya Agrawal, [Mike O'Connor](/person/mike-o-connor), Onur Mutlu [arXiv](https://arxiv.org/abs/1807.05102) [What Your DRAM Power Models Aren’t Telling You: Lessons from a Detailed Experimental Study](/publication/2018-06_what-your-dram-power-models-aren-t-telling-you-lessons-detailed-experimental) Saugata Ghose, Abdullah Giray Yağlıkçı, Raghav Gupta, [Donghyuk Lee](/person/donghyuk-lee), Kais Kudrolli, William X. Liu, Hasan Hassan, Kevin Chang, [Niladrish Chatterjee](/person/niladrish-chatterjee), Aditya Agrawal, [Mike O'Connor](/person/mike-o-connor), Onur Mutlu [ACM International Conference on Measurement and Analysis of Computer Systems (S…](https://dl.acm.org/doi/abs/10.1145/3224419) [Voltron: Understanding and Exploiting the Voltage-Latency-Reliability Trade-Offs in Modern DRAM Chips to Improve Energy Efficiency](/publication/2018-05_voltron-understanding-and-exploiting-voltage-latency-reliability-trade-offs) Kevin K. Chang, Abdullah Giray Yağlıkçı, Saugata Ghose, Aditya Agrawal, [Niladrish Chatterjee](/person/niladrish-chatterjee), Abhijith Kashyap, [Donghyuk Lee](/person/donghyuk-lee), [Mike O'Connor](/person/mike-o-connor), Hasan Hassan, Onur Mutlu [arXiv](https://arxiv.org/abs/1805.03175) [Reducing Data Transfer Energy by Exploiting Similarity within a Data Transaction](/publication/2018-02_reducing-data-transfer-energy-exploiting-similarity-within-data-transaction) [Donghyuk Lee](/person/donghyuk-lee), [Mike O'Connor](/person/mike-o-connor), [Niladrish Chatterjee](/person/niladrish-chatterjee) [International Symposium on High Performance Computer Architecture (HPCA)](https://ieeexplore.ieee.org/document/8326997) Best Paper nominee ### 2017 [Fine-Grained DRAM: Energy-Efficient DRAM for Extreme Bandwidth Systems](/publication/2017-10_fine-grained-dram-energy-efficient-dram-extreme-bandwidth-systems) [Mike O'Connor](/person/mike-o-connor), [Niladrish Chatterjee](/person/niladrish-chatterjee), [Donghyuk Lee](/person/donghyuk-lee), [John Wilson](/person/john-wilson), Aditya Agrawal, [Steve Keckler](/person/stephen-keckler), [William Dally](/person/william-dally) [International Symposium on Microarchitecture (MICRO)](https://dl.acm.org/citation.cfm?id=3124545) [Detecting and Mitigating Data-Dependent DRAM Failures by Exploiting Current Memory Content](/index.php/publication/2017-10_detecting-and-mitigating-data-dependent-dram-failures-exploiting-current-memory) Samira Khan, Chris Wilkerson, Zhe Wang, Alaa R. Alameldeen, [Donghyuk Lee](/index.php/person/donghyuk-lee), Onur Mutlu [International Symposium on Microarchitecture (MICRO)](https://ieeexplore.ieee.org/document/8686523) [Ambit: In-Memory Accelerator for Bulk Bitwise Operations Using Commodity DRAM Technology](/publication/2017-10_ambit-memory-accelerator-bulk-bitwise-operations-using-commodity-dram) Vivek Seshadri, [Donghyuk Lee](/person/donghyuk-lee), Thomas Mullins, Hasan Hassan, Amirali Boroumand, Jeremie Kim, Michael A. Kozuch, Onur Mutlu, Phillip B. Gibbons, Todd C. Mowry [International Symposium on Microarchitecture (MICRO)](https://ieeexplore.ieee.org/document/8686556) [Design-Induced Latency Variation in Modern DRAM Chips: Characterization, Analysis, and Latency Reduction Mechanisms](/publication/2017-06_design-induced-latency-variation-modern-dram-chips-characterization-analysis) [Donghyuk Lee](/person/donghyuk-lee), Samira Khan, Lavanya Subramanian, Saugata Ghose, Rachata Ausavarungnirun, Gennady Pekhimenko, Vivek Seshadri, Onur Mutlu [ACM Conference on Measurement and Analysis of Computer Systems (SIGMETRICS 2017)](http://dl.acm.org/citation.cfm?id=3084464) [Understanding Reduced-Voltage Operation in Modern DRAM Devices: Experimental Characterization, Analysis, and Mechanisms](/publication/2017-06_understanding-reduced-voltage-operation-modern-dram-devices-experimental) Kevin Chang, Abdullah Giray Yağlıkçı, Saugata Ghose, Aditya Agrawal, [Niladrish Chatterjee](/person/niladrish-chatterjee), Abhijith Kashyap, [Donghyuk Lee](/person/donghyuk-lee), [Mike O'Connor](/person/mike-o-connor), Hasan Hassan, Onur Mutlu [ACM Conference on Measurement and Analysis of Computer Systems (SIGMETRICS 2017)](http://dl.acm.org/citation.cfm?id=3078590) [Understanding Reduced-Voltage Operation in Modern DRAM Chips: Characterization, Analysis, and Mechanisms](/publication/2017-05_understanding-reduced-voltage-operation-modern-dram-chips-characterization) Kevin K. Chang, Abdullah Giray Yağlıkçı, Saugata Ghose, Aditya Agrawal, [Niladrish Chatterjee](/person/niladrish-chatterjee), Abhijith Kashyap, [Donghyuk Lee](/person/donghyuk-lee), [Mike O'Connor](/person/mike-o-connor), Hasan Hassan, Onur Mutlu [arXiv](https://arxiv.org/abs/1705.10292) [SoftMC: A Flexible and Practical Open-Source Infrastructure for Enabling Experimental DRAM Studies](/publication/2017-02_softmc-flexible-and-practical-open-source-infrastructure-enabling-experimental) Hasan Hassan, Nandita Vijaykumar, Samira Khan, Saugata Ghose, Kevin Chang, Gennady Pekhimenko, [Donghyuk Lee](/person/donghyuk-lee), Oguz Ergin, Onur Mutlu [International Symposium on High Performance Computer Architecture (HPCA)](https://ieeexplore.ieee.org/document/7920829) [Architecting an Energy-Efficient DRAM System for GPUs](/publication/2017-02_architecting-energy-efficient-dram-system-gpus) [Niladrish Chatterjee](/person/niladrish-chatterjee), [Mike O'Connor](/person/mike-o-connor), [Donghyuk Lee](/person/donghyuk-lee), Daniel Johnson, Minsoo Rhu, [Steve Keckler](/person/stephen-keckler), [William Dally](/person/william-dally) [International Symposium on High Performance Computer Architecture (HPCA)](http://ieeexplore.ieee.org/document/7920815/)