OpenFOAM matrix exporter

This library registers the matrixExporter solver in OpenFOAM. When the solver is invoked, it will export the matrix it is supposed to solve to a file in the Matrix Market format.

Usage

1. Clone the library to any folder. You may clone it into the $WM_PROJECT_USER_DIR folder, but you can use any other folder as well. Dont forget to clone the submodules as well (--recursive) as the library depends on the fast_matrix_market.

git clone --recursive https://github.com/timnoack/openfoam-matrix-export.git

2. Build the library. The shared library is automatically copied into the $FOAM_USER_LIBBIN folder.

wmake libso path/to/openfoam-matrix-export

3. Load the library to your solver application by specifying it in your system/controlDict:

libs ("libMatrixExporter");

4. Use the matrixExporter solver in your system/fvSolution file:

solvers
{
    T // the name of your field
    {
        solver           matrixExporter;
        matrixFile       "A.mtx";
        sourceFile       "b.mtx";
        initialFieldFile "x.mtx";
        exitAfterExport  yes;
        comment          "Please provide a short description of the testcase and its matrix here.";
    }
}

5. Run your case as usual. The solver will export the matrix, source vector and initial field to the specified filenames.