Simulation on the Grid: Opportunities and Challenges
Parallel and Distributed Computing Centre,
development of many complex simulation applications requires collaborative
effort from researchers with different domain knowledge and expertise, possibly
at different locations. These simulation systems often require large amounts of
computing resources and data sets which may be geographically distributed. In
order to support collaborative model development and to cater for the
increasing complexity of such systems, it is necessary to harness distributed
resources over the Internet. The emergence of Grid technologies provides
exciting new opportunities for large scale distributed simulation, enabling
collaboration and the use of distributed computing resources, while also
facilitating access to geographically distributed data sets.
last decade has seen an explosion of interest and innovation in the field of
large scale distributed simulation. This activity is mainly centered on the
High Level Architecture (HLA) , an IEEE standard to facilitate
interoperability and reuse of simulation models. Using the HLA, and its
associated middleware, the Run Time Infrastructure (RTI), a distributed
simulation can be constructed by linking together a number of simulation
components (or federates) into an overall simulation (or federation).
HLA-based distributed simulations are conducted using a
vendor-specific RTI software. To run a distributed simulation over a
WAN, the required software and hardware resource arrangements and security
settings must be made before the actual simulation execution. Because of this
inflexibility, it is not easy to run HLA-based distributed simulations across
administrative domains. To address these inflexibility issues and leverage
globally pervasive resources for distributed simulations, the Grid is naturally
considered as a solution.
computing was proposed by Foster as flexible, secure and coordinated resource
sharing among dynamic collections of individuals, institutions and resources .
Three approaches can be defined for HLA-based distributed simulation on the
Grid , namely a Grid-facilitated approach, a Grid-enabled approach and a
the Grid-facilitated approach, Grid services are defined to facilitate the
execution of HLA-based distributed simulations while the actual simulation
communications are through a vendor-specific RTI. In the Grid-enabled approach, a client
federate communicates with a federate server using Grid (or web) services and
the federate server representing the client joins an HLA-based distributed
simulation using a vendor-specific RTI. In
the Grid-oriented approach, the RTI itself is implemented using Grid services
according to the HLA standard. All communications are through Grid service
invocations. This approach was raised in Fox's keynote at DS-RT 2005 .
talk describes the opportunities offered by executing distributed simulations in
a Grid environment and discusses the research challenges that must be addressed
before these opportunities can be fully exploited.It presents a conceptual framework for the next
generation of Grid-based distributed simulations and describes SOHR , a
Service Oriented HLA RTI framework that implements the RTI entirely using Grid
services following the Grid-oriented approach.
 G. Fox, A. Ho, S. Pallickara, M. Pierce and W. Wu, 2005. Grids for the
GiG and Real Time Simulations. Proc. 9th IEEE International Symposium
on Distributed Simulation and Real Time Applications, pp 129-138.
IEEE, 2000. IEEE 1516 Standard for Modeling and Simulation-High Level Architecture.
Pan, S.J. Turner, W. Cai, and Z. Li, 2007. A Service
Oriented HLA RTI on the Grid. Proc. 2007 International Conference on Web
Services, pp 984-992.
Dr. Thomas A. Furness III
Professor & International Director
Human Interface Technology Laboratory
Over a career of 42 years, Prof. Furness has been exploring and developing technology tools for getting bandwidth to the brain and between brains. His work has encompassed fighter cockpits, virtual reality, retinal displays, educational tools, medical simulators, pain, phobias, molecular modeling, scanning fiber endoscopes and entertainment systems. This quest has been punctuated with side trips and aha experiences that have led to unanticipated destinations, many of which have involved distributed and real-time simulation. Dr. Furness plans to talk about lessons learned on his journey including unexpected delight with an aim to inspire, entertain and challenge conference attendees.
Prof. Furness is a pioneer in human interface technology and virtual reality. He received the BS degree in Electrical Engineering from Duke University and the Ph.D. in Engineering and Applied Science from the University of Southampton, England. Dr. Furness is currently a professor of Industrial Engineering with adjunct professorships in Electrical Engineering, Mechanical Engineering, Aeronautics and Astronautics, and Technical Communication at the University of Washington. He is the founder of the Human Interface Technology Laboratory (HIT Lab) at UW and founder and international director of the HIT Lab NZ at the University of Canterbury, Christchurch, NZ and the HIT Lab Australia at the University of Tasmania. He is also an Erskine Fellow and Adjunct Professor at the University of Canterbury.
Prior to joining the faculty at the University of Washington, Prof. Furness served a combined 23 years as an Air Force officer and civilian at the Armstrong Laboratory at Wright-Patterson Air Force Base, Ohio, where he developed advanced cockpits and virtual interfaces for the Department of Defense. He is the author of the Super Cockpit program and served as the Chief of Visual Display Systems and Super Cockpit Director until he joined the University of Washington in 1989.
Dr. Furness lectures widely and has appeared in many national and international network and syndicated television science and technology documentaries and news programs. He is the inventor of the personal eyewear display, the virtual retinal display, the HALO display and holds 15 patents in advanced sensor, display and interface technologies. With his colleagues Dr. Furness has started 24 companies, two of which are traded on NASDAQ at a market capitalization of > $ 2 B. In 1998 he received the Discover Award for his invention of the virtual retinal display.