EigenSolver Class Reference

Class for solving a linear system using a Cholesky-decomposition on the effective stiffness matrix. More...

#include <EigenSolver.hpp>

Inheritance diagram for EigenSolver:

Collaboration diagram for EigenSolver:

Public Member Functions
	EigenSolver (bool flag=false)
	Creates a EigenSolver object. More...
	~EigenSolver ()
	Destroys this EigenSolver object. More...
bool	SolveSystem (Eigen::SparseMatrix< double > &A, Eigen::VectorXd &b)
	Solve the linear system. More...
const Eigen::VectorXd &	GetSolution ()
	Gets the soultion vector. More...
Public Member Functions inherited from LinearSystem
	LinearSystem ()
	Creates a LinearSystem object. More...
virtual	~LinearSystem ()=0
	Destroys this LinearSystem object. More...

Protected Attributes
bool	Flag
	Analysis flag. More...
bool	Factored
	Eigen Factorization Flag. More...
bool	Initialized
	Eigen Initialization Flag. More...
Eigen::VectorXd	x
	Vector of unknowns. More...
Eigen::SimplicialLDLT< Eigen::SparseMatrix< double > >	Solver
	Direct LDLT factorization solver. More...

Detailed Description

Class for solving a linear system using a Cholesky-decomposition on the effective stiffness matrix.

See also

LinearSystem.hpp

Constructor & Destructor Documentation

EigenSolver()

EigenSolver::EigenSolver

(

bool

flag = false

)

Creates a EigenSolver object.

Parameters

flag	Whether the analysis is linear or non-linear.

Note

More details can be found at EigenSolver.

See also

EigenSolver::Flag.

~EigenSolver()

EigenSolver::~EigenSolver

(

)

Destroys this EigenSolver object.

Member Function Documentation

GetSolution()

const Eigen::VectorXd& EigenSolver::GetSolution ( )

virtual

Gets the soultion vector.

Returns

The solution vector.

See also

EigenSolver::x.

Implements LinearSystem.

SolveSystem()

bool EigenSolver::SolveSystem ( Eigen::SparseMatrix< double > &  A, Eigen::VectorXd &  b  )

virtual

Solve the linear system.

Parameters

A	The matrix with the left-hand side.
b	The vector with the right-hand side.

Returns

Whether or not the system was successfully solved.

Note

More details can be found at EigenSolver.

See also

Integrator::ComputeEffectiveForce(), Integrator::ComputeEffectiveStiffness().

Implements LinearSystem.

Member Data Documentation

Factored

bool EigenSolver::Factored

protected

Eigen Factorization Flag.

Flag

bool EigenSolver::Flag

protected

Analysis flag.

Initialized

bool EigenSolver::Initialized

protected

Eigen Initialization Flag.

Solver

Eigen::SimplicialLDLT<Eigen::SparseMatrix<double> > EigenSolver::Solver

protected

Direct LDLT factorization solver.

x

Eigen::VectorXd EigenSolver::x

protected

Vector of unknowns.