chaserli / opensbli

A framework for the automated derivation and parallel execution of finite difference solvers on a range of computer architectures.

OpenSBLI

OpenSBLI is an open-source code-generation system for compressible fluid dynamics (CFD) on heterogeneous computing architectures. Written in Python, OpenSBLI uses explicit high-order finite-difference schemes on structured curvilinear meshes. Shock-capturing is performed by a choice of high-order Weighted Essentially Non-Oscillatory (WENO) or Targeted Essentially Non-Oscillatory (TENO) schemes. OpenSBLI generates a complete CFD solver in the Oxford Parallel Structured (OPS) domain specific language. The OPS library is embedded in C code, enabling massively-parallel execution of the code on a variety of high-performance-computing architectures, including GPUs.

How to cite this work

The current reference for OpenSBLI is:

D.J. Lusher, S.P. Jammy, N.D. Sandham. OpenSBLI: Automated code-generation for heterogeneous computing architectures applied to compressible fluid dynamics on structured grids. Computer Physics Communications Vol. 267, 108063 (2021).

@article{OpenSBLI_LJS2021,
title = {{OpenSBLI: Automated code-generation for heterogeneous computing architectures applied to compressible fluid dynamics on structured grids}},
journal = {Computer Physics Communications},
volume = {267},
pages = {108063},
year = {2021},
issn = {0010-4655},
doi = {https://doi.org/10.1016/j.cpc.2021.108063},
author = {David J. Lusher and Satya P. Jammy and Neil D. Sandham},
}

Getting started

Dependencies

First ensure that the following dependencies are satisfied:

Core code-generation:

The following dependencies are required for generating a code and running a simulation:

• Python 2.7
• Sympy == 1.1
• Numpy
• Scipy 0.19.1
• OPS (to target the generated OPSC code towards different backends) OPS project's repository.

Testing and documentation:

• pytest (for running the test suite)
• python-flake8 (for linting the code base)
• Sphinx (to build the documentation)

Note on previous version

• The version 1.0 of OpenSBLI can be downloaded from [release][https://github.com/opensbli/opensbli/releases]
• No enhancements of version 1.0 are planned

Postprocessing:

• Matplotlib for plot scripts
• python-h5py

Installation

Development branch

Add OpenSBLI to your PYTHONPATH environment variable using

export PYTHONPATH=$PYTHONPATH:/path/to/OpenSBLI/base/directory

Recent applications of OpenSBLI

1. A Hamzehloo, DJ Lusher, ND Sandham. Direct numerical simulations and spectral proper orthogonal decomposition analysis of shocklet-containing turbulent channel counter-flows. International Journal of Heat and Fluid Flow, 104, 109229 (2023).
2. DJ Lusher, M Zauner, A Sansica, A Hashimoto. Automatic Code-Generation to Enable High-Fidelity Simulations of Multi-Block Airfoils on GPUs. AIAA SciTech Forum, 1222 (2023).
3. A Gillespie, ND Sandham. Numerical study of the effect of sidewalls on shock train behaviour. Flow 3, E12 (2023).
4. DJ Lusher, GN Coleman. Numerical Study of Compressible Wall-Bounded Turbulence–the Effect of Thermal Wall Conditions on the Turbulent Prandtl Number in the Low-Supersonic Regime. International Journal of Computational Fluid Dynamics 36 (9), 797-815 (2022).
5. DJ Lusher, GN Coleman. Numerical Study of the Turbulent Prandtl Number in Supersonic Plane-Channel Flow – the Effect of Thermal Boundary Conditions. NASA Technical Memorandum 10483 (NASA/TM–20220010483) (2022).
6. A Gillespie, ND Sandham. Shock train response to high-frequency backpressure forcing. AIAA Journal 60 (6), 3736-3748 (2022).
7. A Hamzehloo, DJ Lusher, S Laizet, ND Sandham. Direct numerical simulation of compressible turbulence in a counter-flow channel configuration. Physical Review Fluids 6 (9), 094603 (2021).
8. DJ Lusher, ND Sandham. Assessment of low-dissipative shock-capturing schemes for the compressible Taylor–Green vortex. AIAA Journal 59 (2), 533-545 (2021).
9. A Hamzehloo, DJ Lusher, S Laizet, ND Sandham. On the performance of WENO/TENO schemes to resolve turbulence in DNS/LES of high‐speed compressible flows. International Journal for Numerical Methods in Fluids 93 (1), 176-196 (2021).
10. DJ Lusher, ND Sandham. Shock-wave/boundary-layer interactions in transitional rectangular duct flows. Flow, Turbulence and Combustion 105, 649-670 (2020).
11. DJ Lusher, ND Sandham. The effect of flow confinement on laminar shock-wave/boundary-layer interactions. Journal of Fluid Mechanics 897, A18 (2020).
12. DJ Lusher, SP Jammy, ND Sandham. Shock-wave/boundary-layer interactions in the automatic source-code generation framework OpenSBLI. Computers & Fluids 173, 17-21 (2018).

Contact

If you wish to report a bug with the software, please contact Satya P. Jammy or David J. Lusher