core_smoothers.h File Reference

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Namespaces
namespace	ug
	the ug namespace

Functions
template<typename Matrix_type , typename Vector_type >
void	ug::diag_step (const Matrix_type &A, Vector_type &c, const Vector_type &d, number damp)
	Performs a jacobi-step.
template<typename Matrix_type , typename Vector_type >
void	ug::gs_step_LL (const Matrix_type &A, Vector_type &c, const Vector_type &d, const number relaxFactor)
	Gauss-Seidel-Iterations.
template<typename Matrix_type , typename Vector_type >
void	ug::gs_step_UR (const Matrix_type &A, Vector_type &c, const Vector_type &d, const number relaxFactor)
	Performs a backward gauss-seidel-step, that is, solve on the upper right of A. Using gs_step_UR within a preconditioner-scheme leads to the fact that we get the correction by successive inserting the already computed values of c in c = N * d, with c being the correction and d being the defect. N denotes the matrix of the second normal-form of a linear iteration scheme.
template<typename Matrix_type , typename Vector_type >
void	ug::sgs_step (const Matrix_type &A, Vector_type &c, const Vector_type &d, const number relaxFactor)
	Performs a symmetric gauss-seidel step. Using sgs_step within a preconditioner-scheme leads to the fact that we get the correction by successive inserting the already computed values of c in c = N * d, with c being the correction and d being the defect. N denotes the matrix of the second normal-form of a linear iteration scheme.