Professor

Bio: Jaehwan Lee received his B.S. and M.S. degree in the School of Electrical Engineering from Seoul National University,   and his Ph.D. in the Department of Computer Science at University of Maryland, College Park under the guidance of Dr. Alan Sussman and Dr. Pete Keleher. From 2000 to 2005, he was a Member of Technical Staff at Korea Telecom (KT) Convergence Laboratories. During his Ph.D., he worked for NEC Labs in America and Bell labs, Alcatel-lucent as a summer research staff. After his Ph.D., he has been a Research Scientist in System Architecture Lab in Samsung US lab. His research interests encompass networked and distributed system, high performance computing, and applications of computing system and security.  In KAU, he focuses two main research topics: 1)  High-performance I/O in HPC, and 2) Large-scale distributed deep learning SW platform.

He received General Electric (GE) scholarship, Government Fellowship for Korea Electrical Industry, and KOCSEA Jung Moon-jong scholarship. He was awarded the best paper award from IEEE conference on Cluster Computing, 2017.

Publication

Journal

• Hyeonseong Choi, Byung hun Lee, Se young Chun, Jaehwan Lee*, "Towards Accelerating Model Parallelism in Distributed Deep Learning Systems", Plos One, Nov. 2023 (SCIE)

• Cheongjun Lee, Jaehwan Lee*, Chungyong kim, Jiwoo Bang, Eun-Kyu Byun and Hyeonsang Eom, "I/O Separation Scheme on Lustre Metadata Server based on Multi-stream SSD", Cluster Computing, The Journal of Networks, Software Tools and Applications , Nov. 2022 (SCIE)

• Jiwoo Bang, Chungyong Kim, Eun‐Kyu Byun, Hanul Sung, Jaehwan Lee*, Hyeonsang Eom, "Accelerating I/O performance of ZFS-based Lustre file system in HPC environment", Journal of Supercomputing, 79, pages 7665–7691,  2023 (SCIE) 

• Cheongjun Lee , Jaehwan Lee* , Donghun Koo, Chungyong Kim, Jiwoo Bang, Eun-Kyu Byun, and Hyeonsang Eom, “Towards Enhanced I/O Performance of a Highly Integrated Many-Core Processor by Empirical Analysis”, Cluster Computing, The Journal of Networks, Software Tools and Applications, May 2021 (SCIE) 

• Hyeonseong Choi and Jaehwan Lee*, "Efficient use of GPU memory for large-scale deep learning model training", Applied Sciences, Vol 11, No 21, Sep. 2021 (SCIE)

• June Choi, Jaehyun Lee, Jik-Soo Kim, and Jaehwan Lee*, "Optimization Techniques for a Distributed In-Memory Computing Platform by Leveraging SSD", Applied Sciences, Vol 11, No 18, Sep. 2021 (SCIE)

• HyeonSeong Choi, Youngrang Kim, Jaehwan Lee, and Yoonhee Kim,  "Empirical Performance Evaluation of Communication Libraries for Multi-GPU based Distributed Deep Learning in a Container Environment". KSII Transactions on Internet and Information Systems, vol. 15, no. 3, pp. 911-931, Mar. 2021 (SCIE)

• Donghun Koo, Jaehwan Lee*, Jialin Liu, Eun-Kyu Byun, Jae-Hyuck Kwak, Glenn K Lockwood, Soonwook Hwang, Katie Antypas, Kesheng Wu, Hyeonsang Eom, "An empirical study of I/O separation for burst buffers in HPC systems", Journal of Parallel and Distributed Computing , 14, Feb. 2021 (SCIE)

• Ji Sun Shin, Minjae Jo, Jung Yeon Hwang, Jaehwan Lee*, "A Verifier-Based Password-Authenticated Key Exchange Using Tamper-Proof Hardware", The Computer Journal , Jan 2021 (SCIE)

• Jaehwan Lee, Hyeonseong Choi, Hyeonwoo Jeong, Baekhyeon Noh, Ji Sun Shin, "Communication Optimization Schemes for Accelerating Distributed Deep Learning Systems", Applied Sciences, Vol 10, No 24, Dec. 2020 (SCIE)

• Junghoon Woo, Hyeonseong Choi, Jaehwan Lee*, "Empirical Performance Analysis of Collective Communication for Distributed Deep Learning in a Many-Core CPU Environment", Applied Sciences, Vol 10, No 19, Sep. 2020 (SCIE)

• Youngrang Kim, H. Choi, Jaehwan Lee*, Jik-soo Kim, H. Jei, and H. Roh, “Towards an optimized distributed deep learning framework for a heterogeneous multi-GPU cluster”, Cluster Computing, The Journal of Networks, Software Tools and Applications , 23 (3), 2287-2300 (SCIE)

• Youngrang Kim, Jaehwan Lee*, Jik-soo Kim, H. Jei, and H. Roh, “Comprehensive techniques of multi-GPU memory optimization for deep learning acceleration”, Cluster Computing, The Journal of Networks, Software Tools and Applications ,23 (3), 2193-2204 (SCIE)

• Dong In Kim; Hyungu Lee; Alavalapati Goutham Reddy; Jaehwan Lee; Ji Sun Shin, "Comparison of Security Related Methods in Open Interconnect Consortium (OIC) and one Machine-to-Machine (oneM2M) for Security Interoperability", International Journal of Internet Technology and Secured Transactions, 2019 Vol 9, No.3. 

• Cheolgi KIM, Daechul LEE, Jaehyun LEE,  and Jaehwan LEE*, "An Efficient Block Assignment Policy in Hadoop Distributed File System for Multimedia Data Processing", IEICE Transactions on Information and Systems, 2019, E102.D  Vol 8,  Pages 1569-1571 (SCIE)

• Hyungu Lee, Jung Yeon Hwang, Shincheol Lee, Dong In Kim, Sung-Hoon Lee, Jaehwan Lee, and Ji Sun Shin, "A parameterized model to select discriminating features on keystroke dynamics authentication on smartphones", PERVASIVE AND MOBILE COMPUTING, Vol 54, March 2019, Pages 45-57 (SCIE)

• Cao Ngoc Nguyen,  Jaehwan Lee,  Soonwook Hwang  and Jik-Soo Kim, "On the role of message broker middleware for many-task computing on a big-data platform", CLUSTER COMPUTING-THE JOURNAL OF NETWORKS SOFTWARE TOOLS AND APPLICATIONS, 22, 2527–2540 (2019) (SCIE)

• Jaehwan Lee, June Choi, Hongchan Roh, Ji Sun Shin, "An Empirical Performance Analysis on Hadoop via Optimizing the Network Heartbeat Period", KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS, 12(11): 5252-5268 (2018) (SCIE)

• Jaehwan LEE, Youngrang KIM, Ji Sun SHIN, "In-Storage Anti-Virus System via On-Demand Inspection", IEICE Transactions on Information and Systems, 2018 Volume E101.D Issue 8 Pages 2132-2135 (SCIE)

• Jaehwan LEE, Joohwan KIM, Ji Sun SHIN, "DiSC: A Distributed In-Storage Computing Platform Using Cost-Effective Hardware Devices", IEICE Transactions on Information and Systems, 2017 Volume E100.D Issue 12 Pages 3018-3021 (SCIE) 

• Donghun Koo,  Jik-Soo Kim, Soonwook Hwang, Hyeonsang Eom, and Jaehwan Lee*,  "Adaptive hybrid storage systems leveraging SSDs and HDDs in HPC cloud environments", CLUSTER COMPUTING-THE JOURNAL OF NETWORKS SOFTWARE TOOLS AND APPLICATIONS 20, 2119–2131 (2017) (SCIE)

• Jaehwan LEE, Min Jae JO, Ji Sun SHIN, "LigeroAV: A Light-weight, Signature-based Antivirus for Mobile Environment", IEICE Transactions on Information and Systems,2016 Volume E99.D Issue 12 Pages 3185-3187 (SCIE)

• Sangwhan Moon, Jaehwan Lee*, Xiling Sun and Yang-suk Kee ,  "Optimizing the Hadoop MapReduce Framework with high-performance storage devices",  JOURNAL OF SUPERCOMPUTING, 71, 3525–3548 (2015) (SCI)

• Jaehwan Lee, Pete Keleher and Alan Sussman, "Exploiting Multi-core Nodes in Peer-to-Peer Grids", Journal of Parallel and Distributed Computing (JPDC), Vol. 74, Issue 4, April 2014, Pages 2286-2303 (SCI)

• Jaehwan Lee, Pete Keleher and Alan Sussman, "Decentralized Multi-attribute Range Search for Resource Discovery and Load Balancing", The Journal of Supercomputing , Dec 2013, on-line published (SCI)

• Young-jin Kim, Jaehwan Lee, Gary Atkinson, Hongseok Kim and Marina Thottan, "SeDAX: A Secure, Resilient, and Scalable Platform for Smart Grid Communications," IEEE Journal on Selected Areas In Communications(JSAC), Vol 30, Issue 6, July 2012  (SCI)

• Y.K. Choi, S.K. Park, Sunghyun Choi, G.W. Lee, Jaehwan Lee, and H.W. Jung, "Enhancement of a WLAN-Based Internet Service," ACM Mobile Networks and Applications (MONET), Vol 10, No 3, Jun 2005  (SCIE)

Conference

• Jiwoo Bang, Chungyong Kim, Eun-Kyu Byun, Hanul Sung, Jaehwan Lee, and Hyeonsang Eom, "Towards Efficient I/O Performance of NVM File Systems”, 30th IEEE INTERNATIONAL CONFERENCE ON HIGH PERFORMANCE COMPUTING, DATA, & ANALYTICS (HiPC'23), Goa, India, Dec 2023

• Jiwoo Bang, Chungyong Kim, Sunggon Kim, Qichen Chen, Cheongjun Lee, Eun-Kyu Byun, Jaehwan Lee, and Hyeonsang Eom, "Finer-LRU: A Scalable Page Management Scheme for HPC Manycore Architectures",  IEEE 35th 2021 International Parallel & Distributed Processing Symposium (IPDPS'21), Portland, OR, May 2021

• Cheongjun  Lee, Jaehwan Lee, Donghun Koo, C. Kim, J. Bang, E. Byun and Hyeonsang Eom, “Empirical Analysis of the I/O Characteristics of a Highly Integrated Many-Core Processor”, The 8th International Workshop on Autonomic Management of high performance Grid and Cloud Computing (IEEE AMGCC'20), Washington DC, Aug, 2020

• Youngrang Kim, Hyeonseong Choi, Jaehwan Lee, Jik-soo Kim, H. Jei, and H. Roh, “Efficient Large-scale Deep Learning Framework for Heterogeneous Multi-GPU Cluster”, The 7th International Workshop on Autonomic Management of high performance Grid and Cloud Computing (IEEE AMGCC'19), Umea, Sweden, June, 2019

• Youngrang Kim, Jaehwan Lee, Jik-soo Kim, H. Jei, and H. Roh, “Efficient Multi-GPU Memory Management for Deep Learning Acceleration”, The 6th International Workshop on Autonomic Management of high performance Grid and Cloud Computing (IEEE AMGCC'18), Trento, Italy, Sep., 2018

• C. Nguyen, Jik-Soo Kim , Jaehwan Lee and Soonwook Hwang, “A Case Study of Leveraging High-Throughput Distributed Message Queue System for Many-Task Computing on Hadoop”, The 5th International Workshop on Autonomic Management of high performance Grid and Cloud Computing (IEEE AMGCC'17), Tuscon, AZ, Sep., 2017

• Jaehyun Han, Donghun Koo, Glenn K. Lockwood, Jaehwan Lee, Hyeonsang Eom,  Soonwook Hwang, "Accelerating a burst buffer via user-level I/O isolation", IEEE 2017 Conference on Cluster Computing (Cluster'17), Honolulu, HI, Sep. 2017.  Best Paper Award !

• Donghun Koo, Jik-Soo Kim, Soonwook Hwang, Hyeonsang Eom, Jaehwan Lee, "Utilizing Progressive File Layout Leveraging SSDs in HPC Cloud Environments", The 4th International Workshop on Autonomic Management of high performance Grid and Cloud Computing (IEEE AMGCC'16), Augsbrug, Germany, Sep. 2016

• Sangwhan Moon, Jaehwan Lee and Yang-suk Kee, "Introducing SSDs to the Hadoop Map-reduce Framework",IEEE 2014 Conference on Cloud Computing (IEEE Cloud'14), Anchorage, AL, June 2014 

• Young-jin Kim, Jaehwan Lee, Gary Atkinson and Marina Thottan, "GridDataBus: Information-centric Platform for Scalable Secure Resilient Phasor-Data Sharing", IEEE INFOCOM Workshop on Communications and Control for Sustainable Energy Systems: Green Networking and Smart Grids (INFOCOM'12WS-CCSES), Orlando, FL, March 30, 2012 

• Jaehwan Lee, Pete Keleher and Alan Sussman, "Supporting Computing Element Heterogeneity in P2P Grids",IEEE 2011 Conference on Cluster Computing (Cluster'11), Austin, TX, Sep. 2011 

• Jaehwan Lee, Pete Keleher and Alan Sussman, "Decentralized Resource Management for Multi-core Desktop Grids", IEEE 24th 2010 International Parallel & Distributed Processing Symposium (IPDPS'10), Atlanta, GA, April 2010 

• Jaehwan Lee, Pete Keleher and Alan Sussman, "Decentralized Dynamic Scheduling across Heterogeneous Multi-core Desktop Grids", IEEE 19th International Heterogeneity in Computing Workshop (HCW'10) in conjunction with IPDPS 2010, Atlanta, GA, April 2010 

• Michael Marsh, Jik-Soo Kim, Beomseok Nam, Jaehwan Lee, San Ratanasanya, Bobby Bhattacharjee, Peter Keleher, Derek Richardson, Dennis Wellnitz and Alan Sussman, "Matchmaking and Implementation Issues for a P2P Desktop Grid", 2008 National Science Foundation Next Generation Software Workshop (NSFNGS '08) in conjunction with IPDPS 2008, Miami, FL, April 2008 

• S.K. Kim, J.S. Kim, S.K. Park, Sunghyun Choi, Jaehwan Lee and H.W. Jung, "Reachability and Goodput Enhancement via Fragmentation in Public IEEE 802.11b WLAN", IEEE 2005 Asia-Pacific Conference on Communications (APCC'06), Busan, Korea, Aug 2006 

• S.K. Kim, S.K. Park, Sunghyun Choi, Jaehwan Lee and H.W. Jung, "Management and Diagnosis Architecture for Large-scale public WLAN", IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM '06), Buffalo, USA, June 2006 

• S.K. Kim, Sunghyun Choi, S.K. Park, Jaehwan Lee and S.M. Kim, "An Empirical Measurement-based Analysis of Public WLAN Hand-off Operations", International Workshop on Wireless Personal and Local Area Networks(WILLOPAN'06), New Delhi, India, Jan 2006 

• Jaehwan Lee, Sunghyun Choi and H.W. Jung, "Analysis of User Behavior and Traffic Pattern in a Large-Scale 802.11a/b Network" The 2005 International Workshop on Wireless Network Measurement (WINMEE'05), Lago di Gardi, Italy, April 2005

• J.G. Yu, Sunghyun Choi and Jaehwan Lee, "Enhancement of VoIP over IEEE 802.11 WLAN via Dual Queue Strategy", The 2004 IEEE International Conference on Communications (ICC'04), Paris, France, Jun, 2004

• Y.K.Choi, J.P.Peak, Sunghyun Choi, G.W.Lee, Jaehwan Lee, and H.W.Jung, "Enhancement of a WLAN-Based Internet service in Korea", in Proc. ACM International Workshop on Wireless Mobile Applications and Services on WLAN Hotspots (WMASH'03), San Diego, USA, Sep, 2003