CoefficientManager
CoefficientManager owns and manages MFEM coefficient objects and can handle the set-up of piecewise coefficients representing properties defined across multiple materials.
Overview
CoefficientManager owns and manages mfem::Coefficient, mfem::VectorCoefficient, and mfem::MatrixCoefficient derived objects added to the MFEM problem. It also handles the set-up of global piecewise coefficients constructed from multiple coefficients defined on separate subdomains of the mesh. These are used to represent what MOOSE calls material properties.
End users should not usually need to interact with the CoefficientManager directly, instead defining Functions or Materials. Developers wanting to add new coefficients or properties to the MFEMProblem should do so using the CoefficientManager::declareXXXCoefficient or CoefficientManager::declarXXXScalar methods, and use getScalarCoefficient, getVectorCoefficient, and/or getMatrixCoefficient to fetch global coefficients or properties in the system by name.