"What are the most important problems in your field? Are you working on one of them? Why not?"
“It is better to solve the right problem the wrong way than to solve the wrong problem the right way - Richard Hamming

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Sang-Min Park 

Ph.D. Student
Computer Science, University of Virginia

Contacts
Phone: 434-825-4939
Email : sangmin(no_spam)@email.virginia.edu
Office: 233 Olsson Hall

Research Group (from 2004)
UVa eScience Group (Advisor: Prof. Marty Humphrey)

Education
Master of Computer Science (2006)   :   Computer Science, University of Virginia
M.E. (2004)    :  Information and Communication Engineering, Ajou University, South Korea    (DMC Lab)
B.S. (2002)   :   Computer Science, Ajou University, South Korea

 

Research Interests

Grid Computing (High Performance Distributed Computing) / Computer Science Research helping Scientists

- Predictable High Performance Computing
- eScience Workflow Systems
- Scheduling Distributed Computation/Communication
- Authorization and Policy Issues
- Service Oriented Grid Architecture (See OGSA and WSRF)

 

Summary of my PhD Research (History repeats, time-sharing again!)

My PhD research focuses on building predictable high performance computing infrastructure, which is the major requirement for emerging dynamic data driven applications. In this new class of applications, the complex computations should be finished within deadlines. Examples include LEAD for real-time weather prediction, earthquake analysis, and medical modeling for patient-specific treatment. The current HPC infrastructures, which are largely based on batch-mode job processing, cannot provide sufficient level of predictability and adaptability. My research takes fundamentally different approach to solve unpredictability; rather than relying on the reservation semantic, my research exploits two capabilities -- performance isolation and online resource reconfiguration -- that are made possible with virtualization so as to build predictable time-sharing system. In my work control theory provides theoretical underpinning of the predictability so that the implemented system can guarantee applications meet deadlines even when severe disturbances affect application performances.

 

Publications

·      Sang-Min Park and Marty Humphrey. Feedback-Controlled Resource Sharing for Predictable eScience. To appear at IEEE/ACM International Conference for High Performance Computing, Networking, Storage and Analysis (SC08), Nov 15-21, 2008, Austin, Texas. (accept ratio: 21.3%)

·      Sang-Min Park and Marty Humphrey. Data Throttling for Data-Intensive Workflows. 22nd IEEE International Parallel and Distributed Processing Symposium (IPDPS 2008). April 14-18, 2008. Miami, FL, USA. (accept ratio: 25.6%)

·      M. Humphrey, S.-M. Park, J. Feng, N. Beekwilder, G. Wasson, J. Hogg, B. LaMacchia, and B. Dillaway. Fine-Grained Access Control for GridFTP using SecPAL. 8th IEEE/ACM International Conference on Grid Computing (Grid 2007), Austin, TX, Sept 19-21, 2007.

·      Sang-Min Park, Glenn Wasson, and Marty Humphrey. Authorizing Remote Job Execution based on Job Properties. 2nd IEEE International Conference on e-Science and Grid Computing (e-Science 2006). Dec 4-6, 2006, Amsterdam, Netherlands.

·      M. Humphrey, G. Wasson, Y. Kiryakov, S-M. Park, D. Del Vecchio, N. Beekwilder, and J. Gray. Alternative Software Stacks for OGSA-based Grids. Proceedings of Supercomputing 2005, Seattle, WA, Nov 12-18, 2005.

·      J.V.S. Watson, Sang-Min Park, and M. Humphrey. Toward GT3 and OGSI.NET Interoperability: GRAM Support on OGSI.NET. 2005 International Conference on Computational Science (ICCS 2005). May 22-25, 2005. Emory University, Atlanta, GA, USA.

·      Sang-Min Park, Jai-Hoon Kim, Young-Bae Ko, and Won-Sik Yoon. Dynamic Data Grid Replication Strategy based on Internet Hierarchy. Second International Workshop on Grid and Cooperative Computing(GCC'2003) in Shanghai, China, Dec 2003.

·      Sang-Min Park, Young-Bae Ko, and Jai-Hoon Kim. Disconnected Operation Service in Mobile Grid Computing. First International Conference on Service Oriented Computing(ICSOC'2003) in Trento, Italy, Dec 2003. (accept ratio: 20.9%)

·      Sang-Min Park and Jai-Hoon Kim. Chameleon: A Resource Scheduler in a Data Grid Environment.   2003 IEEE/ACM International Symposium on Cluster Computing and the Grid(CCGRID'2003), Tokyo, Japan, May 2003. (accept ratio: 34.2%)

·      Sang-Min Park and Jai-Hoon Kim. A Communication Cost Model for Dynamic Selection of Algorithm for Processing Data Replicas in a Grid Environment. Korea Information and Communication Socienty Summer Workshop, 2002.07.

Master Thesis

       Sang-Min Park. A Research on Job Scheduling and Data Replication Mechanism in Grid Computing Environments.

 

Experiences

Talks
Participations
TA
RA

 

Wisdoms

·      You and Your Research by Richard Hamming

This article is a transcript from Dr Hamming’s 1986 talk at Bell Communication Lab. It contains very inspiring
collection of wisdoms that every scientist/engineers would gain significant insights. I made summary of it here:

a.    Work on important problem - "Do first class work"

c.    Emotionally commit to the Problem - “It is your problem, love it!

d.    Turn your work into useful one to others (Do your work in a fashion that people can build on what you have done)

e.    Change your viewpoints; defect will become asset

·      Last Lecture by Randy Pausch
"Brick walls are there for a reason. They let us prove how badly we want things."

·      The Computer Scientists as Toolsmith by Fred Brooks
“The computer scientist is a toolsmith: no more, but no less. It is an honorable calling."
“Arbitrary complexity is our lot, and here more than anywhere else we need the best minds of our discipline
fashioning more powerful attacks on such problems

·      On Ph.D. Thesis Proposals by H. C. Lauer
This report describes the general and useful guidance in preparing Ph.D. thesis proposal in CS major.
The process might be well applied to other science/engineering disciplines as well.

 

Research Links

Grid computing
International Conferences (where my paper will go!)

 

Personal Life

Light and Salt Church (샬롯츠빌 빛과소금교회): I am serving as a deacon, worship leader, and bible school teacher

 This page is last updated in July 1, 2008