The Adaptive Systems Project is developing principles, methods, algorithms,
and system support for the online adaptation of applications and system
components, to address the needs of embedded/real-time, high performance,
and interactive applications.
Current research efforts are funded by federal and industry sponsors.
We have developed several distributed and parallel benchmark programs operating
on multiple target platforms. These programs include synthetic applications
derived from distributed multimedia and from parallel sensor processing
applications, distributed virtual environments, and distributed games and
simulations. Jointly, they provide a basis for research on configurable
and adaptable distributed programs and communications. Our research addresses
the development of on-line adaptation algorithms and methods for parallel,
distributed, and real-time applications. Toward this end, negotiation protocols
and QoS formulations targeting real-time applications are being investigated,
and a framework for dynamic resource management is being constructed.
This project also concerns the evaluation of on-line configurable communication
protocols, both with respect to their processing requirements (CPU requirements
on SMP platforms) and their networking needs (QoS requirements), jointly
with networking faculty.
infrastructures for online system/program adaptation, such as the FARA
infrastructure for runtime adaptation of complex distributed and parallel
applications subject to constraints in their timing behavior, and the Dionisys
infrastructure for adaptation of multiple application and system components
cooperating in the execution of one or more complex applications,
middleware and software abstractions enabling the runtime control of applications,
application components, and system-level services,
experimentation with specific adaptation techniques, adaptive applications,
software and hardware components, and abstractions supporting runtime adaptation,
adaptable real-time programs exhibiting highly dynamic execution behavior,
real-time benchmarks, and real-time protocols.
Robin Kravets, Ken Calvert, and Karsten Schwan, Payoff
Adaptation of Communication for Distributed Interactive Applications,
to appear in Journal on High Speed Networking: Special Issue on Multimedia
Bodhi Mukherjee, Dilma Silva, Karsten Schwan, and Ahmed Gheith,
KTK: Kernel Support for Configurable Objects and Invocations, Distributed
Systems Engineering Journal, IEE, UK, Vol.1, 1995.
Ahmed Gheith and Karsten Schwan, CHAOS-Arc -- Kernel Support for Atomic
Transactions in Real-Time Applications, ACM Transactions on Computer
Systems, April 1993. Also reprinted in Advances in Real-time Systems, Prentice
Hall, editor: S. Son, 1994.
Thomas E. Bihari and Karsten Schwan, The Dynamic Adaptation of Real-Time
Software, ACM Transactions on Computer Systems, May 1991.
Richard West, Karsten Schwan and Christian Poellabauer, Scalable
Scheduling Support for Loss and Delay Constrained Media Streams. Fifth
IEEE Real-Time Technology and Applications Symposium, 1999.
Richard West and Karsten Schwan, Dynamic
Window-Constrained Scheduling for Multimedia Applications. IEEE International
Conference on Multimedia Computing and Systems, 1999.
Robin Kravets, Ken Calvert, and Karsten Schwan, Payoff-Based
Communication Adaptation based on Network Service Availability, IEEE
Multimedia Systems '98, Aug. 1998.
Daniela Ivan-Rosu and Karsten Schwan, FARA--
A Framework for Adaptive Resource Allocation in Complex Real-Time Systems,
IEEE Real-Time Technology and Applications Symposium, June 1998.
Dilma Silva, Karsten Schwan, and Greg Eisenhauer, Configurable
Distributed Retrieval of Scientific Data, International Conference
on Configurable Distributed Systems, May 1998.
Vernard Martin and Karsten Schwan, ILI:
An Adaptive Infrastructure For Dynamic Interactive Distributed Applications,
International Conference on Configurable Distributed Systems, May 1998.
Daniela Ivan-Rosu, Karsten Schwan, Sudhakar Yalamanchili, and Rakesh Jha,
Adaptive Resource Allocation for Complex, Real-time Applications, Real-Time
Systems Symposium, San Francisco, IEEE, Dec. 1997.
Phyllis Schneck, Ellen Zegura, and Karsten Schwan, DRRM: Dynamic Resource
Reservation Manager, Proceedings of the IC3N 96, IEEE, October 1996.
Daniela Ivan-Rosu and Karsten Schwan, Improving
Protocol Performance by Dynamic Control of Communication Resources,
Second IEEE International Conference on Engineering of Complex Computer
Systems, Montreal, October 1996, outstanding paper award.
Bodhi Mukherjee and Karsten Schwan, Improving Performance by Use of
Adaptive Objects: Experimentation with a Configurable Multiprocessor Threads
Package, 2nd International Symposium on High Performance Distributed
Computing (HPDC-2), Spokane, Washington, July 1993.
Thomas E. Bihari and Karsten Schwan, A Comparison of Four Adaptation
Algorithms for Increasing the Reliability of Real-Time Software, Ninth
Real-Time System Symposium, Huntsville, AL, Dec. 1988.
Richard West and Karsten Schwan, Interactors:
Capturing QoS and Resource Requirements between Multiple Cooperating Objects,
Fourth IEEE Real-Time Technology and Applications Symposium, Work-In-Progress,
IEEE, June 1998.
P. Schneck and K. Schwan, Dynamic Allocation of Security Resources to
Client-Server Applications, IEEE Workshop on Dependable and Real-Time
E-Commerce Systems, May 1998.
P. Schneck and K. Schwan, Dynamic Authentication for High-Performance
Networked Applications, 1998 Sixth IEEE/IFIP International Workshop
on Quality of Service, May 1998.
D. Silva and K. Schwan, Achieving High Performance through Flexible
Software, Proceedings of the XXIV Brazilian Software and Hardware Seminars
(SEMISH), Aug. 1997.
Projects and Links
[Georgia Institute of
Technology][College of Computing]
Last modified: August
17, 1999. Page maintained by Rich West, firstname.lastname@example.org