chrono::ChDirectSolverLScomplex Class Reference

Description

Base class for sparse direct linear solvers with complex coefficients.

Sparse linear direct solvers A*x=b for complex A,b,x.

These solvers are mostly meant to work in problems of finding eigenpairs, where one might need to compute the shift-and-invert operator during Arnoldi or Krylov-Schur iterations, that might have complex shifts.

#include <ChDirectSolverLScomplex.h>

Inheritance diagram for chrono::ChDirectSolverLScomplex:

Public Member Functions
Eigen::SparseMatrix< std::complex< double >, Eigen::ColMajor > &	A ()
	Get shortcut handle to underlying A matrix, for A*x=b.
ChVectorDynamic< std::complex< double > > &	x ()
	Get shortcut handle to underlying x solution vector, for A*x=b.
virtual bool	Setup ()
	Perform the solver setup operations (factorization) Returns true if successful and false otherwise.
virtual double	Solve (const ChVectorDynamic< std::complex< double > > &b)
	Solve linear system.

Public Attributes
bool	verbose = false

Protected Member Functions
virtual bool	FactorizeMatrix ()=0
	Factorize the current sparse matrix and return true if successful.
virtual bool	SolveSystem (const ChVectorDynamic< std::complex< double > > &b)=0
	Solve the linear system using the current factorization and right-hand side vector.
virtual void	PrintErrorMessage ()=0
	Display an error message corresponding to the last failure.

Protected Attributes
Eigen::SparseMatrix< std::complex< double >, Eigen::ColMajor >	m_mat
	problem matrix
int	m_dim
	problem size
ChVectorDynamic< std::complex< double > >	m_sol
	solution vector

Member Function Documentation

PrintErrorMessage()

virtual void chrono::ChDirectSolverLScomplex::PrintErrorMessage ( )

protectedpure virtual

Display an error message corresponding to the last failure.

This function is only called if Factorize or Solve returned false.

SolveSystem()

virtual bool chrono::ChDirectSolverLScomplex::SolveSystem ( const ChVectorDynamic< std::complex< double > > & b )

protectedpure virtual

Solve the linear system using the current factorization and right-hand side vector.

Load the solution vector (already of appropriate size) and return true if succesful.

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The documentation for this class was generated from the following files:

• D:/W/B/src/chrono-9.0.1/src/chrono/solver/ChDirectSolverLScomplex.h
• D:/W/B/src/chrono-9.0.1/src/chrono/solver/ChDirectSolverLScomplex.cpp