Hoon Sung Chwa

Assistant professor

Real-Time Computing Lab

Information and Communication Engineering

DGIST

Email: chwahs AT dgist.ac.kr


I am currently an assistant professor at ICE, DGIST. Before joining DGIST in August 2018, I worked as a research fellow at the University of Michigan, Ann Arbor, MI, USA from October 2016 to July 2018. I received a Ph.D. degree in School of Computing from Korea Advanced Institute of Science and Technology (KAIST) in 2016. My research interests include system design and analysis with timing guarantees and resource management in real-time embedded systems and cyber-physical systems.

News

  • [September 2018] A paper got accepted at RTSS 2018.
  • [August 2018] Hoon Sung Chwa joined DGIST.
  • [July 2018] A paper got accepted at EMSOFT 2018.
  • [February 2018] A paper got accepted at IEEE TPDS.
  • [December 2017] Two papers got accepted at RTAS 2018.
  • [December 2017] A paper was presented at RTSS 2017.
  • [October 2017] A paper was presented at EMSOFT 2017.
  • [October 2016] Hoon Sung Chwa joined Real-Time Computing Lab., Electrical Engineering and Computer Science, the University of Michigan, Ann Arbor, MI, USA, working with Prof. Kang G. Shin.
  • [March 2016] Hoon Sung Chwa was a postdoctoral researcher at KAIST.
  • [February 2016] Hoon Sung Chwa received a Ph.D. degree.
  • [December 2015] Hoon Sung Chwa presented the paper "Optimal Real-Time Scheduling on Two-Type Heterogeneous Multicore Platforms" at RTSS 2015.
  • [December 2015] Hoon Sung Chwa presented the paper "Towards Compositional Mixed-Criticality Real-Time Scheduling in Open Systems" at CRTS 2015.
  • [July 2015] Hoon Sung Chwa presented the paper "Towards Energy and Feasibility Optimal Scheduling on big.LITTLE platforms" at RTSOPS 2015.
  • [December 2014] Hoon Sung Chwa presented the paper "Supporting Single-GPU Abstraction threough Transparent Multi-GPU Execution for Real-Time Guarantees" at CRTS 2014.
  • [August 2014] Hoon Sung Chwa presented the paper "Scalable Path and Time Coordination for Robot Formation" at CPSNA 2014 and won the Best Paper Award.
  • [July 2013] Hoon Sung Chwa presented the paper "Global EDF Schedulability Analysis for Synchronous Parallel Tasks on Multicore Platforms" at ECRTS 2013.
  • [December 2012] Hoon Sung Chwa presented the paper "Extending Task-level to Job-level Fixed Priority Assignment and Schedulability Analysis Using Pseudo-deadlines" at RTSS 2012) and won the Best Paper Award; one best paper was selected out of 157 submissions.


Publications

<Refereed Papers in International Conference Proceedings>

  • MC-SDN: Supporting Mixed-Criticality Scheduling on Switched-Ethernet Using Software-Defined Networking
    • Kilho Lee, Taejune Park, Minsu Kim, Hoon Sung Chwa, Jinkyu Lee, Seungwon Shin, Insik Shin
    • To appear in 39th IEEE Real-Time Systems Symposium (RTSS 2018), Nashville, TN, USA, December 2018.
  • Thermal-Aware Resource Management for Embedded Real-Time Systems
    • Youngmoon Lee, Hoon Sung Chwa, Kang G. Shin, Shige Wang
    • To appear in the ACM SIGBED International Conference on Embedded Software (EMSOFT 2018), Torino, Italy, October 2018.
  • Physical-State-Aware Dynamic Slack Management for Mixed-Criticality Systems [PDF] [Supplement]
    • Hoon Sung Chwa, Kang G. Shin, Hyeongboo Baek, Jinkyu Lee
    • In 24th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS 2018), Porto, Portugal, April 2018.
  • Closing the Gap between Stability and Schedulability: A New Task Model for Cyber-Physical Systems [PDF] [Supplement]
    • Hoon Sung Chwa, Kang G. Shin, Jinkyu Lee
    • In 24th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS 2018), Porto, Portugal, April 2018.
  • Beyond Implicit-Deadline Optimality: A Multiprocessor Scheduling Framework for Constrained-Deadline Tasks [PDF]
    • Hyeongboo Baek, Hoon Sung Chwa, Jinkyu Lee
    • In 38th IEEE Real-Time Systems Symposium (RTSS 2017), Paris, France, December 2017.
    • - Acceptance ratio: 31/131=23.7%
  • MC-ADAPT: Adaptive Task Dropping in Mixed-Criticality Scheduling [PDF]
    • Jaewoo Lee, Hoon Sung Chwa, Linh T.X. Phan, Insik Shin, Insup Lee
    • In the ACM SIGBED International Conference on Embedded Software (EMSOFT 2017), Seoul, Korea, October 2017.
  • Optimal Real-Time Scheduling on Two-Type Heterogeneous Multicore Platforms [PDF]
    • Hoon Sung Chwa, Jaebaek Seo, Jinkyu Lee, Insik Shin
    • In 36th IEEE Real-Time Systems Symposium (RTSS 2015), San Antonio, TX, USA, December 2015.
    • - Best Paper Runner-up. - Acceptance ratio: 34/151=22.5%
  • Scalable Path and Time Coordination for Robot Formation [PDF]
    • Hoon Sung Chwa, Andrii Shyshkalov, Kilho Lee, Insik Shin
    • In 2nd IEEE International Conference on Cyber-Physical Systems, Networks, and Applications (CPSNA 2014), Hong Kong, China, August 2014.
    • - Best Paper Award: one best paper was selected out of 23 submissions. - Acceptance ratio: 9/23=39.1%
  • Global EDF Schedulability Analysis for Synchronous Parallel Tasks on Multicore Platforms [PDF]
    • Hoon Sung Chwa, Jinkyu Lee, Kieu-My Phan, Arvind Easwaran, Insik Shin
    • In 25th Euromicro Conference on Real-Time Systems (ECRTS 2013), Paris, France, July 2013.
    • - Acceptance ratio: 27/99=27.3%
  • Extending Task-level to Job-level Fixed Priority Assignment and Schedulability Analysis Using Pseudo-deadlines [PDF]
    • Hoon Sung Chwa, Hyoungbu Back, Sanjian Chen, Jinkyu Lee, Arvind Easwaran, Insik Shin, Insup Lee
    • In 33rd IEEE Real-Time Systems Symposium (RTSS 2012), San Juan, Puerto Rico, December 2012.
    • - Best Paper Award: one best paper was selected out of 157 submissions. - Acceptance ratio: 35/157=22.3%
  • Schedulability Analysis and Priority Assignment for Global Job-level Fixed-Priority Multiprocessor Scheduling [PDF]
    • Hyoungbu Back, Hoon Sung Chwa, Insik Shin
    • In 8th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS 2012, in conjunction with CPSWeek 2012), Beijing, China, April 2012.
    • - Acceptance ratio: 30/127=23.6%


<Referred Papers in International Journals>

  • Non-Preemptive Scheduling for Mixed-Criticality Real-Time Multiprocessor Systems [PDF]
    • Hyeongboo Baek, Namyong Jung, Hoon Sung Chwa, Insik Shin, and Jinkyu Lee
    • IEEE Transactions on Parallel and Distributed Systems, Volume 29, Issue 8, pp. 1766-1779, August 2018.
  • MC-ADAPT: Adaptive Task Dropping in Mixed-Criticality Scheduling [PDF]
    • Jaewoo Lee, Hoon Sung Chwa, Linh T.X. Phan, Insik Shin, Insup Lee
    • ACM Transactions on Embedded Computing Systems (TECS), Volume 16, Issue 5s, Article No. 163 (the special issue of EMSOFT 2017), October 2017.
  • Global EDF Schedulability Analysis for Parallel Tasks on Multicore Platforms [PDF]
    • Hoon Sung Chwa, Jinkyu Lee, Jiyeon Lee, Kieu-My Phan, Arvind Easwaran, and Insik Shin
    • IEEE Transactions on Parallel and Distributed Systems, Volume 28, Issue 5, pp. 1331-1345, May 2017.
  • GPU-SAM:Leaveraging Multi-GPU Split-and-Merge Execution for System-wide Real-Time Support[PDF]
    • Wookhyun Han, Hoon Sung Chwa, Hwidong Bae, Hyosu Kim, Insik Shin
    • Journal of Systems and Software, Volume 117, pp. 1-14, July 2016.
  • Thread-level Priority Assignment in Global Multiprocessor Scheduling for DAG Tasks [PDF]
    • Jiyeon Lee, Hoon Sung Chwa, Jinkyu Lee, Insik Shin
    • Journal of Systems and Software, Volume 113, pp. 246-256, March 2016.
  • Capturing Urgency and Parallelism Using Quasi-Deadlines for Real-Time Multiprocessor Scheduling[PDF]
    • Hoon Sung Chwa, Hyoungbu Back, Jinkyu Lee, Kieu-My Phan, Insik Shin
    • Journal of Systems and Software, Volume 101, pp. 15-29, March 2015.


<Theses>

  • Advancing Multi-core Scheduling for Real-time Embedded Systems
    • Hoon Sung Chwa
    • Ph.D. Thesis, School of Computing, KAIST, South Korea, February 2016.
    • - Outstanding Ph.D. Thesis Award.
  • Adaptive Trajectory Planning for Scalable Multiple Robot Control
    • Hoon Sung Chwa
    • M.S. Thesis, Department of Computer Science, KAIST, South Korea, February 2011.


<Other Papers>

  • Towards Compositional Mixed-Criticality Real-Time Scheduling in Open Systems [PDF]
    • Jaewoo Lee, Hoon Sung Chwa, Arvind Easwaran, Insik Shin, Insup Lee
    • In 8th International Workshop on Compositional Theory and Technology for Real-Time Embedded Systems (CRTS 2015), San Antonio, USA, December 2015.
  • Towards Energy and Feasibility Optimal Scheduling on big.LITTLE platforms [PDF]
    • Hoon Sung Chwa, Jaebaek Seo, Hyuck Yoo, Jinkyu Lee, Insik Shin
    • In 6th Real-Time Scheduling Open Problems Seminar (RTSOPS 2015), Lund, Sweden, July 2015.
  • Supporting Single-GPU Abstraction threough Transparent Multi-GPU Execution for Real-Time Guarantees [PDF]
    • Wookhyun Han, Hoon Sung Chwa, Hwidong Bae, Hyosu Kim, Insik Shin
    • In 7th International Workshop on Compositional Theory and Technology for Real-Time Embedded Systems (CRTS 2014), Rome, Italy, December 2014.

Last update: August 2018.