RK-Opt
RK-Opt: A package for the design of numerical ODE solvers - Published in JOSS (2020)
Science Score: 93.0%
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○CITATION.cff file
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✓DOI references
Found 12 DOI reference(s) in README and JOSS metadata -
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Published in Journal of Open Source Software
Scientific Fields
Repository
A package for the design of numerical ODE solvers
Basic Info
Statistics
- Stars: 43
- Watchers: 8
- Forks: 24
- Open Issues: 9
- Releases: 3
Metadata Files
README.md
RK-Opt: A Package for the Design of Numerical ODE solvers
See the full documentation here.
RK-Opt is a collection of MATLAB codes for designing optimized numerical ODE solvers. The main emphasis is on Runge-Kutta methods, but some routines deal with other classes of methods. It is primarily developed and used by the KAUST Numerical Mathematics Group. It includes the following sub-packages:
- polyopt: Find optimal stability polynomials of a given degree and order of accuracy for a specified spectrum.
- RK-coeff-opt: Find optimal Runge-Kutta method coefficients, for a prescribed order of accuracy and number of stages.
- am_rad-opt: Find stability functions with optimal radius of absolute monotonicity. Includes capabilities for both multistep and multistage methods.
- RKtools: A collection of routines for analyzing or computing various properties of Runge-Kutta methods. For a much more extensive package along these lines, see NodePy.
A common workflow for designing Runge-Kutta methods is to use polyopt to find an appropriate stability function and then RK-coeff-opt to determine the Runge-Kutta method coefficients.
To run the tests, execute the MATLAB script test.m. This requires a relatively recent
version of MATLAB (tested with R2018a and later) with the following toolboxes.
- MATLAB Optimization Toolbox
- MATLAB Global Optimization Toolbox
- CVX (http://cvxr.com/cvx/)
- MATLAB Parallel Computing Toolbox (optional; allows faster searching for optimal methods in RK-Coeff-Opt)
Citing
If you use RK-Opt in published work, please cite the following paper:
Ketcheson et al., (2020). RK-Opt: A package for the design of numerical ODE solvers. Journal of Open Source Software, 5(54), 2514, https://doi.org/10.21105/joss.02514
You can use the following bibtex entry:
@article{Ketcheson2020,
doi = {10.21105/joss.02514},
url = {https://doi.org/10.21105/joss.02514},
year = {2020},
publisher = {The Open Journal},
volume = {5},
number = {54},
pages = {2514},
author = {David I. Ketcheson and Matteo Parsani and Zachary J. Grant and Aron J. Ahmadia and Hendrik Ranocha},
title = {`RK-Opt`: A package for the design of numerical ODE solvers},
journal = {Journal of Open Source Software}
}
Authors
The code is primarily developed and maintained by David Ketcheson. The following people have also made important contributions to RK-Opt (listed alphabetically):
- Aron Ahmadia: Co-developer of polyopt algorithm and routines.
- Zachary Grant: Extension of order conditions to multistep RK with more than two stages and addition of order conditions for orders 9-11.
- Matteo Parsani: Many improvements to RK-coeff-opt routines and organization.
- Hendrik Ranocha: General improvements and updates, including updating the test routines.
Owner
- Name: David Ketcheson
- Login: ketch
- Kind: user
- Location: Thuwal, Saudi Arabia
- Company: King Abdullah University of Science and Technology
- Website: http://www.davidketcheson.info
- Repositories: 51
- Profile: https://github.com/ketch
JOSS Publication
RK-Opt: A package for the design of numerical ODE solvers
Authors
King Abdullah University of Science and Technology, Saudi Arabia
King Abdullah University of Science and Technology, Saudi Arabia
Oak Ridge National Laboratory, USA
Capital One, USA
King Abdullah University of Science and Technology, Saudi Arabia
Editor
Patrick Diehl
Tags
numerical analysis differential equations Runge-Kutta method linear multistep method strong stability preservation absolute stabilityGitHub Events
Total
- Watch event: 4
- Issue comment event: 2
- Push event: 1
- Pull request event: 2
Last Year
- Watch event: 4
- Issue comment event: 2
- Push event: 1
- Pull request event: 2
Committers
Last synced: 5 months ago
Top Committers
| Name | Commits | |
|---|---|---|
| David Ketcheson | d****h@g****m | 100 |
| Matteo Parsani | p****o@g****m | 55 |
| Hendrik Ranocha | m****l@r****e | 46 |
| Aron Ahmadia | a****n@a****t | 2 |
Committer Domains (Top 20 + Academic)
Issues and Pull Requests
Last synced: 4 months ago
All Time
- Total issues: 22
- Total pull requests: 47
- Average time to close issues: 6 months
- Average time to close pull requests: 3 days
- Total issue authors: 5
- Total pull request authors: 6
- Average comments per issue: 1.59
- Average comments per pull request: 0.96
- Merged pull requests: 36
- Bot issues: 0
- Bot pull requests: 0
Past Year
- Issues: 0
- Pull requests: 1
- Average time to close issues: N/A
- Average time to close pull requests: about 22 hours
- Issue authors: 0
- Pull request authors: 1
- Average comments per issue: 0
- Average comments per pull request: 2.0
- Merged pull requests: 1
- Bot issues: 0
- Bot pull requests: 0
Top Authors
Issue Authors
- ketch (8)
- gardner48 (5)
- ranocha (4)
- mparsani (3)
- debdeepbh (2)
Pull Request Authors
- mparsani (21)
- ranocha (17)
- ketch (5)
- Sondar74 (4)
- ahmadia (2)
- MagnusSaurbier (2)
Top Labels
Issue Labels
Pull Request Labels
Packages
- Total packages: 2
- Total downloads: unknown
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Total dependent packages: 0
(may contain duplicates) -
Total dependent repositories: 0
(may contain duplicates) - Total versions: 2
proxy.golang.org: github.com/ketch/rk-opt
- Documentation: https://pkg.go.dev/github.com/ketch/rk-opt#section-documentation
- License: bsd-3-clause
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Latest release: v1.0.0
published over 5 years ago
Rankings
proxy.golang.org: github.com/ketch/RK-opt
- Documentation: https://pkg.go.dev/github.com/ketch/RK-opt#section-documentation
- License: bsd-3-clause
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Latest release: v1.0.0
published over 5 years ago
Rankings
Dependencies
- sphinxcontrib-bibtex *