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ranocha

5 indexed repositories · View on GitHub

SummationByPartsOperators.jl
A Julia library of summation-by-parts (SBP) operators used in finite difference, Fourier pseudospectral, continuous Galerkin, and discont...

Julia · 113 stars
BSeries.jl
Computing with B-series in Julia

Julia · 29 stars
Julia_User_Group_Mainz
Collecting material from talks at the Julia User Group in Mainz, Germany

HTML · 19 stars
PolynomialBases.jl
Polynomial bases for spectral element methods.

Julia · 15 stars
Postprocessing.jl
Postprocessing of data obtained by numerical simulations or measurements

Julia · 0 stars

Beginner friendly Everything

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New spherical operators Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

ranocha/SummationByPartsOperators.jl#430 · 3 comments · Opened Sep 17, 2026
Testing: split different symbolic backend computations into multiple test environments Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

ranocha/BSeries.jl#316 · 2 comments · Opened May 4, 2026
Interface for symbolic computations using Giac.jl Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

ranocha/BSeries.jl#315 · Opened May 4, 2026
Make the creation of B-series more efficient Open

performance

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ranocha/BSeries.jl#288 · Opened Oct 10, 2025
Something may be wrong with the coefficients of the fourth-order second-derivative variable-coefficient operator of Mattsson2012 Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 28/100

ranocha/SummationByPartsOperators.jl#344 · Opened May 23, 2025
Wishlist Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ranocha/Julia_User_Group_Mainz#13 · 3 comments · Opened Apr 24, 2025
Check whether the Uppsala MATLAB SBP library has more operators that should be included Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 25/100

ranocha/SummationByPartsOperators.jl#320 · Opened Feb 5, 2025
Composition with different step sizes and different right-hand-sides Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ranocha/BSeries.jl#223 · 1 comment · Opened Jul 10, 2024
Tutorial on checking symplecticity Open

documentation

Difficulty 5/5 Over a week Newbie friendliness 20/100

ranocha/BSeries.jl#218 · Opened Jun 25, 2024
Compare with David Zhang's RungeKuttaToolKit.jl and RKTK Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ranocha/BSeries.jl#209 · Opened May 27, 2024
Periodic variable-coefficient second-derivative operators Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ranocha/SummationByPartsOperators.jl#258 · Opened Mar 18, 2024
Add Dissipation Operators for DienerDorbandSchnetterTiglio2007 Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ranocha/SummationByPartsOperators.jl#251 · 2 comments · Opened Feb 18, 2024
Upwind SBP-WENO operators of Jiang and Wang (2023) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ranocha/SummationByPartsOperators.jl#239 · 1 comment · Opened Dec 19, 2023
Add some tests with rationals Open

good first issue

Difficulty 3/5 1-2 days Newbie friendliness 42/100

ranocha/SummationByPartsOperators.jl#210 · Opened Aug 12, 2023
New first- and second-derivative coefficients of Sharan, Brady, Livescu (2022) Open

enhancement good first issue

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ranocha/SummationByPartsOperators.jl#203 · Opened Jul 21, 2023
Tutorial on checking energy preservation Open

documentation

Difficulty 3/5 1-2 days Newbie friendliness 48/100

ranocha/BSeries.jl#133 · Opened Jun 13, 2023
Improve `energy_preserving_order` Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ranocha/BSeries.jl#131 · Opened Jun 13, 2023
Performance improvements of `is_energy_preserving` Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ranocha/BSeries.jl#130 · Opened Jun 13, 2023
How to handle re-normalization of B-series Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ranocha/BSeries.jl#129 · Opened Jun 13, 2023
New optimized second-derivative operators of Eriksson and Mattsson (2022) Open

enhancement good first issue

Difficulty 5/5 Over a week Newbie friendliness 25/100

ranocha/SummationByPartsOperators.jl#173 · Opened Apr 3, 2023
New optimized variable-coefficient second-derivative operators of Stierström, Almquist, Mattsson Open

enhancement good first issue

Difficulty 5/5 Over a week Newbie friendliness 25/100

ranocha/SummationByPartsOperators.jl#170 · 1 comment · Opened Mar 9, 2023
Option to render elementary differentials using summation notation Open

enhancement good first issue

Difficulty 5/5 Over a week Newbie friendliness 25/100

ranocha/BSeries.jl#103 · 5 comments · Opened Feb 28, 2023
Provide non-allocating access to quadrature weights Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

ranocha/SummationByPartsOperators.jl#161 · Opened Dec 13, 2022
5-arg `mul!` for continuously coupled operators? Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ranocha/SummationByPartsOperators.jl#145 · 4 comments · Opened Aug 26, 2022
Performance: Avoid re-computing tree hashes Open

performance

Difficulty 4/5 3-5 days Newbie friendliness 45/100

ranocha/BSeries.jl#67 · Opened Aug 9, 2022
Tutorials with Literate.jl to also get runnable Jupyter notebooks Open

documentation

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ranocha/BSeries.jl#64 · Opened Jul 3, 2022
Functional (FSBP) and RBF SBP operators of Glaubitz, Nordström, Öffner (2022) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ranocha/SummationByPartsOperators.jl#132 · 3 comments · Opened Mar 11, 2022
SBP coefficients of Dovgilovich, Maksyutov, Sofronov (2017) Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

ranocha/SummationByPartsOperators.jl#131 · Opened Mar 4, 2022
SBP coefficients of Albin & Klarmann (2016) Open

good first issue

Difficulty 5/5 Over a week Newbie friendliness 25/100

ranocha/SummationByPartsOperators.jl#130 · Opened Mar 4, 2022
Potential cooperation and integration between DiffEqOperators and SummationByPartsOperators Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ranocha/SummationByPartsOperators.jl#127 · 4 comments · Opened Mar 3, 2022
Implicit SBP operators of Mattsson and Rydin (2022) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ranocha/SummationByPartsOperators.jl#126 · Opened Mar 2, 2022
Tutorial on modifying integrators with additive RK methods Open

documentation

Difficulty 4/5 3-5 days Newbie friendliness 25/100

ranocha/BSeries.jl#54 · Opened Feb 2, 2022
Improve handling of `MultirateInfinitesimalSplitMethod` Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

ranocha/BSeries.jl#42 · Opened Jan 16, 2022
Extensions of B-series Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 15/100

ranocha/BSeries.jl#8 · 6 comments · Opened Sep 21, 2021
Performance: Explore possibilities for memoization Open

performance

Difficulty 5/5 Over a week Newbie friendliness 20/100

ranocha/BSeries.jl#4 · 4 comments · Opened Sep 18, 2021
Add precompile statements Open

latency

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ranocha/SummationByPartsOperators.jl#102 · Opened May 31, 2021
More SIMD improvements Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

ranocha/SummationByPartsOperators.jl#93 · Opened May 25, 2021
Provide nodal bases using StaticArrays.jl Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ranocha/PolynomialBases.jl#12 · Opened May 8, 2020
add discontinuity detection routines Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

ranocha/Postprocessing.jl#6 · Opened Mar 23, 2020
add Gegenbauer reconstruction Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

ranocha/Postprocessing.jl#4 · Opened Mar 23, 2020
Upwind SBP operators of Mattsson (2017) Open

good first issue

Difficulty 5/5 Over a week Newbie friendliness 35/100

ranocha/SummationByPartsOperators.jl#58 · Opened Mar 22, 2020
Periodic wavelet collocation operators Open

good first issue

Difficulty 5/5 Over a week Newbie friendliness 25/100

ranocha/SummationByPartsOperators.jl#57 · Opened Mar 17, 2020
Reconstruction and filtering methods to reduce oscillations Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ranocha/SummationByPartsOperators.jl#56 · 1 comment · Opened Mar 16, 2020
Finite Difference Filters Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

ranocha/SummationByPartsOperators.jl#42 · Opened Aug 19, 2019
Add operators with minimal dispersion error of Linders et al. Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

ranocha/SummationByPartsOperators.jl#38 · Opened Dec 21, 2018
Add boundary optimized operators of Mattsson, Almquist, and van der Weide Open

good first issue

Difficulty 5/5 Over a week Newbie friendliness 25/100

ranocha/SummationByPartsOperators.jl#37 · 2 comments · Opened Dec 21, 2018
Provide Scalar Products Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

ranocha/SummationByPartsOperators.jl#33 · 1 comment · Opened Jun 2, 2018
Modal Filtering with Adaptive Parameters Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

ranocha/SummationByPartsOperators.jl#29 · Opened Jan 23, 2018
Unify Spectral Viscosity via Modal Filtering Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ranocha/SummationByPartsOperators.jl#28 · 1 comment · Opened Jan 22, 2018
Legendre Operators: Dissipation Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

ranocha/SummationByPartsOperators.jl#24 · 1 comment · Opened Jan 19, 2018

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