libMesh::NonlinearImplicitSystem::ComputeVectorSubspace Class Reference
Public Member Functions
|virtual void||operator() (std::vector< NumericVector< Number > * > &sp, sys_type &s)|
Callable abstract base class to be used as a callback to provide the solver with a basis for the system's Jacobian's nullspace (the kernel or the "zero energy modes") or near-nullspace (the "low energy modes"). A nullspace can be used to solve a degenerate problem iteratively (e.g., with a Krylov subspace method). A near nullspace can be used by an Algebraic Multigrid (AMG) preconditioner to construct smoothed- aggregation-like coarse spaces.
Constructor & Destructor Documentation
Member Function Documentation
|virtual void libMesh::NonlinearImplicitSystem::ComputeVectorSubspace::operator()||(||std::vector< NumericVector< Number > * > &||sp,|
This function will be called to compute the subspace basis (e.g., nullspace or nearnullspace). It must be implemented by the user in a derived class.
The documentation for this class was generated from the following file:
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Last modified: February 05 2013 19:55:31 UTC