A new paradigm for petascale Monte Carlo simulation: Replica exchange Wang-Landau sampling
Journal Article
·
· Journal of Physics. Conference Series
- Univ. of Georgia, Athens, GA (United States). Center for Simulational Physics; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). National Center for Computational Sciences
- Univ. of Georgia, Athens, GA (United States). Center for Simulational Physics; Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Swiss Federal Research Inst., Birmensdorf (Switzerland)
- Univ. of Georgia, Athens, GA (United States). Center for Simulational Physics
We introduce a generic, parallel Wang-Landau method that is naturally suited to implementation on massively parallel, petaflop supercomputers. The approach introduces a replica-exchange framework in which densities of states for overlapping sub-windows in energy space are determined iteratively by traditional Wang-Landau sampling. The advantages and general applicability of the method are demonstrated for several distinct systems that possess discrete or continuous degrees of freedom, including those with complex free energy landscapes and topological constraints.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1567362
- Alternate ID(s):
- OSTI ID: 1133554
OSTI ID: 22374937
- Journal Information:
- Journal of Physics. Conference Series, Journal Name: Journal of Physics. Conference Series Vol. 510; ISSN 1742-6588
- Publisher:
- IOP PublishingCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Correlation function behavior in the topological Kosterlitz–Thouless transition using the Replica-Exchange Wang–Landau technique
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journal | December 2019 |
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