1. Award of Excellence, Lawrence Berkeley National Laboratory, Computer Sciences Summer Student Program, 2012.
  2. Future Scientist Award Winner, Federation of Busan Science and Technology, 2005.
  3. Most Innovative Award Winner, "National Thesis Project," Gwangju Information & Culture Industry Promotion Agency, 2005.
  4. Professional Development Award, Korea Game Technology Center, 2005.
  5. The Best New Employee of Product Planning Team Award, Samsung Electronics Co., Ltd., 2006.
  6. Winner in “The Best Engineer of Flash Software Group Awards,” Samsung Electronics Co., Ltd., 2006.


  • EE/CE 4304 Computer Architecture (Spring'15) -- scheduled
  • EEDG 6302 Microprocessor Systems (Spring'15) -- scheduled
  • EE/CE/CS 6304 Computer Architecture (Fall'14)
  • EEDG 6302 Microprocessor Systems (Spring'14)
  • EE/CE/CS 6304 Computer Architecture (Fall'13)


  1. Program Committee, IEEE International Parallel and Distributed Processing Symposium (IPDPS), 2015.
  2. Journal Reviewer, IEEE Computing in Science & Engineering, 2014.
  3. Organizing Committee, Operating System Support for Next Generation Large Scale NVRAM (NVRAMOS), 2014.
  4. Journal Reviewer, Elsevier Parallel Computing, 2014.
  5. Editor, IEMEK Journal of Embedded Systems and Applications, 2014
  6. Program Committee, IEEE International Conference on Computer Design (ICCD), 2014.
  7. Journal Reviewer, IEEE Transaction on Computing, 2014.
  8. External Review Committee, Design Automation Conference (DAC), 2014.
  9. External Reviewer of TACO'15, SC'14, MICRO'14
  10. Program Committee, International Conference on Advanced Engineering Computing and Applications in Sciences, 2014.
  11. Journal Reviewer, The Computer Journal, 2014.
  12. Journal Reviewer, Journal of Computer Science Technology, 2014.
  13. Organizing Committee, Operating System Support for Next Generation Large Scale NVRAM (NVRAMOS), 2013.
  14. Journal Reviewer, IEEE Transaction on Parallel and Distributed Systems (TPDS)
  15. Memory Session Chair, International Conference on Supercomputing (ICS), 2013.
  16. Program Committee, International Conference on Advanced Engineering Computing and Applications in Sciences, 2013.
  17. Journal Reviewer, Journal of Information Science and Engineering, 2013.
  18. Journal Reviewer, IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems (TCAD), 2012.
  19. Journal Reviewer, Journal of Information Science and Engineering, 2012.
  20. External Reviewer of HPCA'13, FAST'13, LCTES'13, ICCAD'12, DAC'12, RTCSA'12, Supercomputing'12, DAC'11, Supercomputing'11, and JPDC


  1. Invitation Talk, "Current State of the Art Non-Volatile Memory and Solid State Disk Architecture," Lawrence Berkeley National Laboratory, Berkeley, CA, 2014
  2. Presentation, "HIOS: A Host Interface I/O Scheduler for Solid State Disks", ISCA, Minneapolis, MN, 2014
  3. Presentation, "Triple-A: A Non-SSD Based Autonomic All-Flash Array for Scalable High Performance Computing Storage Systems," ASPLOS, Salt Lake City, Utah, 2014 [ slides ]
  4. Presentation, "Sprinkler: Maximizing Resource Utilization in Many-Chip Solid State Disks", HPCA, Orlando, FL, 2014 [ slides ]
  5. Presentation, "Challenges in Getting Flash Drives Closer to CPU", HotStorage, San Jose, CA, 2013 [ video ] [ slides ]
  6. Presentation, "Revisiting Widely-held Expectations of SSD and Rethinking Implications for Systems", SIGMETRICS, Pittsburgh. PA 2013 [ slides ]
  7. Presentation, "Design of a Large-Scale Storage-Class RRAM System", ICS, Eugene, OR, 2013
  8. Presentation, "Disk-Cache and Parallelism Aware I/O Scheduling to Improve Storage System Performance", IPDPS, Boston, MA, 2013
  9. Presentation, "Interference Resolver in Shared Storage Systems to Provide Fairness to I/O Intensive Applications", HPDIC, Boston, MA 2013
  10. Invitation Talk, "Designing Non-Volatile Memory Systems and Removing Performance Bottlenecks for SSDs", Intel Research Lab, CA, 2013
  11. Presentation, "Taking Garbage Collection Overheads off the Critical Path in SSDs", USENIX Middleware, Montreal, Canada, 2012
  12. Demo, "Middleware - Firmware Cooperation for High-Speed Solid State Drives", USENIX Middleware, Montreal, Canada, 2012
  13. Presentation, "Removing Performance Bottlenecks for SSDs," DoD Supercomputing Resource Center, US Army Research Lab, 2012
  14. Technical Session, "Next generation NVM technologies," Lawrence Berkeley National Lab. Berkeley, CA, 2012
  15. Presentation, "Physically Addressed Queueing (PAQ): Improving Parallelism in Solid State Disks," ISCA, Portland, OR, 2012
  16. Presentation, "An Evaluation of Different Page Allocation Strategies on High-Speed SSDs," USENIX HotStorage, Boston, MA, 2012
  17. Presentation, "NANDFlashSim: Intrinsic Latency Variation Aware NAND Flash Memory System Modeling and Simulation at Microarchitecture level," MSST, Pacific Grove, CA, 2012
  18. Presentation, "On Urgency of I/O Operations," CCGrid, Ottawa, Canada, 2012
  19. Invitation Talk, "For Your Dream, Passion and Future as an Engineer," Daegu University, Korea, 2010
  20. Invitation Talk, “Considerations for Professional Developers,”Dong-A University, Korea, 2009
  21. Technical Session, “Efficient Development Methods by using C,”Samsung Software Center, Korea, 2007
  22. Invitation Talk, "Object Oriented Paradigm,”Samsung Software Center, Korea, 2005


  1. Research Assistantship 2011~13 from Pennsylvania State University
  2. Teaching Assistantship 2010 from Pennsylvania State University
  3. College of Engineering Fellowship 2010 from Pennsylvania State University, CSE department
  4. Scholarship 2009 from National IT Industry Promotion Agency(NIPA)
  5. Scholarship of Brain Korea 21, 2005 from Korea Research Foundation, BK21 Agency