about
research
Current Research:
My current research interests center on the application and fusion of
parallel simulation with emerging metacomputing technologies. Parallel
simulation and in particular, parallel discrete event simulation
(PDES), are typically run on high-powered, tightly coupled cluster
systems for maximum speedup. However, availability of these execution
platforms can be problematic. Metacomputing offers an attractive
alternative for providing computational capacity, but typical codes
executed on these infrastructures are usually embarassingly
parallel. PDES programs exhibit very different properties such as
communication between partitions of work and virtual time
management.
Metacomputing systems that I am particularly interested in are
volunteer/global/public-resource computing, desktop grids, and cloud
computing systems. The Aurora Parallel and
Distributed Simulation System is an infrastructure that provides
execution capability for both PDES and Task Parallel codes on a
unified software framework for metacomputing systems.
Past Research:
Large-Scale Network Simulation:
My experience with network simulations included large-scale packet-level
simulation of networks approaching real-time runtimes (see this press
release) and simulation of distributed denial of service (DDoS)
attacks. Related research included implementing and comparing
asynchronous and synchronous time management for large-scale
simulations. Large-scale simulations were performed on the
Pittsburgh Supercomputing Center (PSC)
for performance evaluations over many processors. At one point, I
maintained the releases for Parallel and
Distributed NS (PDNS), which is based on the popular NS-2 discrete
event simulator used for networking research.
Intelligent Transportation System Simulation Test Bed:
I created the communication layer and interfaces between the
microscopic traffic simulator, TSIS-CORSIM, and
QualNet. The
CORSIM-QualNet Communication Layer (CQCL) provides HLA-like RTI
interfaces for a detailed ITS simulation test bed.
Integrated Analysis of Environment-Driven Operational Effects in
Sensor Networks:
Under the ASTRO
program in the SensorNet Group
at ORNL, I examined
the interplay effects between two high fidelity simulators. An
environmental simulator, SCIPUFF,
was used to drive the sensor network simulator, TOSSIM. This research
showed the importance of including high fidelity simulation data to
drive the sensor network simulator to provide accurate simulation
results. A detailed plume and propagation model accurately drove the
sensor network simulator providing results vastly different than
those anticipated in a monolithic sensor network only model.
publications
Journal Publications (Referred):
- Alfred Park, Richard M. Fujimoto, Parallel Discrete Event
Simulation on Desktop Grid Computing Infrastructures, International
Journal of Simulation and Process Modelling, Special Issue on Parallel
and Distributed Simulation, Accepted for publication.
- George F. Riley, Mostafa H. Ammar, Richard M. Fujimoto, Alfred
Park, Kalyan S. Perumalla, Donghua Xu, A Federated Approach to
Distributed Network Simulation, ACM Transactions on Modeling and
Computer Simulation 14(2): 116-148, 2004.
Conference and Workshop Papers (Referred):
- Alfred Park and Richard Fujimoto, Optimistic Parallel
Simulation over Public Resource-Computing Infrastructures and Desktop
Grids, in Proceedings of the 12th International Symposium on
Distributed Simulation and Real-Time Applications (DS-RT) : IEEE Computer
Society, Vancouver, BC, 2008.
- Matthias Jeschke, Alfred Park, Roland Ewald, Richard Fujimoto,
Adelinde M. Uhrmacher, Parallel and Distributed Spatial Simulation of
Chemical Reactions, in Proceedings of the 22nd Workshop on Principles
of Advanced and Distributed Simulation : IEEE Computer Society, Rome,
Italy, 2008.
- Alfred Park and Richard Fujimoto, A Scalable Framework for
Parallel Discrete Event Simulations on Desktop Grids, in Proceedings of
the 8th International Conference on Grid Computing: IEEE Computer Society,
Austin, Texas, 2007.
- Alfred Park, Kalyan Perumalla, Vladimir Protopopescu,
Mallikarjun Shankar, Frank DeNap, Bryan Gorman, On Evaluation Needs of
Real-Life Sensor Network Deployments, in Proceedings of the 2nd
European Modeling and Simulation Symposium : Society for Modeling
and Simulation International (SCS), Barcelona, Spain, 2006.
- Alfred Park and Richard M. Fujimoto, Aurora: An Approach
to High throughput Parallel Simulation, in Proceedings of the 20th
Workshop on Principles of Advanced and Distributed Simulation: IEEE
Computer Society, Singapore, 2006.
- J. Brad Fitzgibbons, Richard M. Fujimoto, Randall Guensler, Michael
Hunter, Alfred Park, Hao Wu, Simulation-Based Operations Planning for
Regional Transportation Systems, in Proceedings of the 2004 Annual
National Conference on Digital Government Research (DG.O), Seattle,
Washington, 2004.
- Alfred Park, Richard M. Fujimoto and Kalyan S. Perumalla,
Conservative Synchronization of Large-Scale Network Simulations,
in Proceedings of the 18th Workshop on Principles of Advanced and
Distributed Simulation : IEEE Computer Society, Kufstein, Austria,
2004.
- Richard M. Fujimoto, Kalyan S. Perumalla, Alfred Park, Hao Wu,
Mostafa H. Ammar, George F. Riley, Large-Scale Network Simulation:
How Big? How Fast?, in Proceedings of the 11th International
Workshop on Modeling, Analysis, and Simulation of Computer and
Telecommunication Systems: IEEE Computer Society, Orlando, Florida
2003.
- Kalyan S. Perumalla, Alfred Park, and Richard M. Fujimoto,
Scalable RTI-Based Parallel Simulation of Networks, in Proceedings
of the 17th Workshop on Principles of Advanced and Distributed Simulation:
IEEE Computer Society, San Diego, California, 2003.
Book Chapter:
- Richard Fujimoto, Alfred Park, and Jen-Chih Huang, Towards
Flexible, Reliable, High Throughput Parallel Discrete Event
Simulations, Recent Advances in Modeling and Simulation Tools for
Communication Networks and Services. Springer US, 2008.
257-278.
Demonstrations, Posters, and Talks:
- Alfred Park, Richard Fujimoto, Aurora: A Framework for
Flexible, Reliable, High Throughput Parallel Simulations,
Supercomputing (SC) 07, Reno, Nevada, 2007.
- Alfred Park, Richard Fujimoto, and Steve Ferenci, Aurora: A
Framework for Flexible, Reliable, High Throughput Parallel Discrete
Event Simulations, Georgia Tech Integrated BioSystems Initiative,
Atlanta, Georgia, 2007.
- J. Brad Fitzgibbons, Richard M. Fujimoto, Randall Guensler,
Michael Hunter, Alfred Park, Hao Wu, Distributed Simulation Test Bed
for Intelligent Transportation Systems Design and Analysis,
2004 Annual National Conference on Digital Government Research (DG.O),
Seattle, Washington, 2004.
Other Papers:
- Matthias Jeschke, Roland Ewald, Alfred Park, Richard Fujimoto,
Adelinde M. Uhrmacher, A Parallel and Distributed Discrete Event
Approach for Spatial Cell-Biological Simulations, ACM SIGMETRICS
Performance Evaluation Review 35(4): 22-31, 2008.
- Alfred Park and Kalyan Perumalla, Integrated Analysis of
Environment-Driven Operational Effects in Sensor Networks, Oak Ridge
National Laboratory Technical Report, August 2006.
other
In another life, I was planning on a career as a biochemist, and was
active with the Sherrill Group as
an undergraduate.
Last Modified: December.23.2008
Contact: apark AT gatech.edu
