This project contains a number of implementations in C/C++ of a Boltzmann fluid simulation optimised for different environments / platforms in addition to the original serial implementation of the d2q9-bgk lattice Boltzmann scheme.
Each subsequent implementation of the code was arrived at by making changes to the preceeding version, starting with the original serial sub-optimal version, in the order listed in this table:
| Executable Name | Description |
|---|---|
| boltzmann-original | Original serial version of the code |
| boltzmann-serial | Optimised (still serial) version of the original serial code |
| boltzmann-openmp | Pararelised version of the code using OpenMP |
| boltzmann-mpi | Distributed version of the code using MPI |
| boltzmann-opencl | Graphics Processing Unit version of the code implemented using OpenCL |
Each of the projects can be built and run individually using CMake, e.g.
cd boltzmann-mpi
cmake .
makePlease note that unlike the code, which has been run on a number of operating systems and GPU devices, the CMake build files have only been tested on MacOS.
Some of the sub-projects have pre-requisites and specific build instructions wich are described in separate documentation files:
- Building and running the d2q9-bgk lattice Boltzmann scheme for MPI
- Building and running the d2q9-bgk lattice Boltzmann scheme for OpenMP
This repository also includes a number of short papers describing how the optimisations, paralisation and distribution of the original across a number of nodes was achieved.