Implements a preconditioner designed to map onto PETSc's PCFieldSplit.
FieldSplitPreconditioner(const InputParameters ¶meters)
Base class for MOOSE preconditioners.
NonlinearSystemBase & _nl
The nonlinear system this FSP is associated with (convenience reference)
Nonlinear system to be solved.
std::vector< std::string > _top_split
top split
static InputParameters validParams()
Constructor.
const InputParameters & parameters() const
Get the parameters of the object.