Equa Class Reference

Mother abstract class to describe equation. More...

#include <Equa.h>

Inheritance diagram for Equa:

Public Member Functions
	Equa ()
	Default constructor.
virtual	~Equa ()
	Destructor.
void	setMesh (Mesh &m)
	Define mesh and renumber DOFs after removing imposed ones.
Mesh &	getMesh () const
	Return reference to Mesh instance.
LinearSolver &	getLinearSolver ()
	Return reference to linear solver instance.
Matrix< real_t > *	getMatrix () const
	Return pointer to matrix.
void	setSolver (Iteration ls, Preconditioner pc=IDENT_PREC)
	Choose solver for the linear system.
void	setMatrixType (int t)
	Choose type of matrix.
int	solveLinearSystem (Matrix< real_t > *A, Vect< real_t > &b, Vect< real_t > &x)
	Solve the linear system with given matrix and right-hand side.
int	solveLinearSystem (Vect< real_t > &b, Vect< real_t > &x)
	Solve the linear system with given right-hand side.
void	LinearSystemInfo ()
	Print info on linear system solver.

Detailed Description

Mother abstract class to describe equation.

Author

Rachid Touzani

Copyright

GNU Lesser Public License

Member Function Documentation

getMesh()

Mesh & getMesh

(

)

const

Return reference to Mesh instance.

Returns

Reference to Mesh instance

setMatrixType()

void setMatrixType

(

int

t

)

Choose type of matrix.

Parameters

[in]

t

Type of the used matrix. To choose among the enumerated values: SKYLINE, SPARSE, DIAGONAL TRIDIAGONAL, SYMMETRIC, UNSYMMETRIC, IDENTITY

setSolver()

void setSolver	(	Iteration	ls,
		Preconditioner	pc = IDENT_PREC )

Choose solver for the linear system.

Parameters

[in]	ls	Solver of the linear system. To choose among the enumerated values: DIRECT_SOLVER, CG_SOLVER, GMRES_SOLVER DIRECT_SOLVER, Use a facorization solver [default] CG_SOLVER, Conjugate Gradient iterative solver CGS_SOLVER, Squared Conjugate Gradient iterative solver BICG_SOLVER, BiConjugate Gradient iterative solver BICG_STAB_SOLVER, BiConjugate Gradient Stabilized iterative solver GMRES_SOLVER, GMRES iterative solver QMR_SOLVER, QMR iterative solver
[in]	pc	Preconditioner to associate to the iterative solver. If the direct solver was chosen for the first argument this argument is not used. Otherwise choose among the enumerated values: IDENT_PREC, Identity preconditioner (no preconditioning [default]) DIAG_PREC, Diagonal preconditioner ILU_PREC, Incomplete LU factorization preconditioner

solveLinearSystem() [1/2]

int solveLinearSystem	(	Matrix< real_t > *	A,
		Vect< real_t > &	b,
		Vect< real_t > &	x )

Solve the linear system with given matrix and right-hand side.

Parameters

[in]	A	Pointer to matrix of the system
[in]	b	Vector containing right-hand side
[in,out]	x	Vector containing initial guess of solution on input, actual solution on output

solveLinearSystem() [2/2]

int solveLinearSystem	(	Vect< real_t > &	b,
		Vect< real_t > &	x )

Solve the linear system with given right-hand side.

Parameters

[in]	b	Vector containing right-hand side
[in,out]	x	Vector containing initial guess of solution on input, actual solution on output