Optimistic Simulations of Physical Systems using Reverse Computation
- Georgia Institute of Technology
- ORNL
- SciberQuest Inc.
Efficient computer simulation of complex physical phenomena has long been challenging due to their multi-physics and multi-scale nature. In contrast to traditional time-stepped execution methods, we describe an approach using optimistic parallel discrete event simulation (PDES) and reverse computation techniques to execute plasma physics codes. We show that reverse computation-based optimistic parallel execution can significantly reduce the execution time of an example plasma simulation without requiring a significant amount of additional memory compared to conservative execution techniques. We describe an application-level reverse computation technique that is efficient and suitable for complex scientific simulations.
- Research Organization:
- Oak Ridge National Laboratory (ORNL)
- Sponsoring Organization:
- ORNL Program Development
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1003413
- Journal Information:
- SIMULATION: Transactions of The Society for Modeling and Simulation International, Journal Name: SIMULATION: Transactions of The Society for Modeling and Simulation International Journal Issue: 1 Vol. 82; ISSN 0037-5497
- Country of Publication:
- United States
- Language:
- English
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