TSystemTCD3D Class Reference

stores the information of a timedependent part of a 3D scalar system matrix More...

#include <SystemTCD3D.h>

Inheritance diagram for TSystemTCD3D:

Collaboration diagram for TSystemTCD3D:

Public Member Functions
	TSystemTCD3D (int N_levels, TFESpace3D **fespaces, double **sol, double **rhs, int disctype, int solver)
	source file for TSystemTCD3D More...
	~TSystemTCD3D ()
void	Init (CoeffFct3D *BilinearCoeffs, BoundCondFunct3D *BoundCond, BoundValueFunct3D *BoundValue, TAuxParam3D *aux)
TSquareMatrix3D **	GetAMatrix ()
void	AssembleMRhs ()
void	AssembleARhs ()
void	AssembleSystMat (double *oldrhs, double *oldsol, double *rhs, double *sol#ifdef _MPI, double **Rhs_array#endif)
void	RestoreMassMat ()
void	Solve (double *sol)
double	GetResidual (double *sol)
double	value (double *sol, int N)
Public Member Functions inherited from TSystemCD3D
	TSystemCD3D (int N_levels, TFESpace3D **fespaces, double **sol, double **rhs, int disctype, int solver)
	~TSystemCD3D ()
void	Init (CoeffFct3D *BilinearCoeffs, BoundCondFunct3D *BoundCond, BoundValueFunct3D *BoundValue, TAuxParam3D *aux)
void	Assemble ()
void	Solve (double *sol, double *rhs)
TParFECommunicator3D *	Get_ParComm (int level)

Protected Attributes
TParDirectSolver *	TDS
TSquareMatrix3D **	sqmatrixM
double *	B
double *	defect
double	gamma
bool	factorize
TAssembleMat3D **	MMatRhsAssemble
TDiscreteForm3D *	DiscreteFormMRhs
TDiscreteForm3D *	DiscreteFormRhs
bool	SystMatAssembled
Protected Attributes inherited from TSystemCD3D
TParFEMapper3D **	ParMapper
TParFECommunicator3D **	ParComm
MPI_Comm	Comm
TParDirectSolver *	DS
int	N_Levels
int	Start_Level
TFESpace3D **	FeSpaces
TFESpace3D *	fesp [1]
TFESpace3D *	ferhs [1]
BoundCondFunct3D *	BoundaryConditions [1]
BoundValueFunct3D *	BoundaryValues [1]
int	N_DOF
int	Disctype
int	SOLVER
int	N_Matrices
TAssembleMat3D **	AMatRhsAssemble
TSquareStructure3D **	sqstructure
TSquareMatrix3D **	sqmatrixA
TSquareMatrix3D *	SQMATRICES [1]
TSquareMatrix **	sqmatrices
TDiscreteForm3D *	DiscreteFormARhs
double **	SolArray
double **	RhsArray
double *	RHSs [1]
double	Parameters [2]
double	N_aux
double *	Itmethod_sol
double *	Itmethod_rhs
TMultiGrid3D *	MG
TMGLevel3D *	MGLevel
TItMethod *	Itmethod
TItMethod *	prec

Detailed Description

stores the information of a timedependent part of a 3D scalar system matrix

class for 3D scalar system matrix

---

Author

Sashikumaar Ganesan

Date

24.01.15

Constructor & Destructor Documentation

TSystemTCD3D::TSystemTCD3D	(	int	N_levels,
		TFESpace3D **	fespaces,
		double **	sol,
		double **	rhs,
		int	disctype,
		int	solver
	)

source file for TSystemTCD3D

constructor

---

Author

Sashikumaar Ganesan

Date

24.01.15

M mass and system matrix

working rhs, used in AssembleSystMat()

time-consistent part of the SUPG matrix

TSystemTCD3D::~TSystemTCD3D

(

)

destrcutor

Member Function Documentation

void TSystemTCD3D::AssembleARhs

(

)

assemble the stifness mat and rhs

reset the matrix and rhs

set rhs for Dirichlet nodes

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void TSystemTCD3D::AssembleMRhs

(

)

assemble the Mass mat and rhs

initialize matrices and rhs

free the Mass mat array, no need in time loop

set rhs for Dirichlet nodes

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void TSystemTCD3D::AssembleSystMat	(	double *	oldrhs,
		double *	oldsol,
		double *	rhs,
		double *sol#ifdef	_MPI,
		double **Rhs_array#	endif
	)

M = M + (tau*THETA1)*A B = (tau*THETA1)*rhs +(tau*THETA2)*oldrhs + [ M - (tau*THETA2)A]*oldsol

old rhs multiplied with current subtime step and theta3 on B

add rhs from current sub time step to rhs array B

M = M + (- tau*THETA2)A

defect = M * oldsol

B:= B + defec

set Dirichlet values

assemble the system matrix

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TSquareMatrix3D** TSystemTCD3D::GetAMatrix ( )

inline

return the stiffness matric

double TSystemTCD3D::GetResidual

(

double *

sol

)

return the residual of the system for the given sol

void TSystemTCD3D::Init	(	CoeffFct3D *	BilinearCoeffs,
		BoundCondFunct3D *	BoundCond,
		BoundValueFunct3D *	BoundValue,
		TAuxParam3D *	aux
	)

methods

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void TSystemTCD3D::RestoreMassMat

(

)

restoring the mass matrix

void TSystemTCD3D::Solve

(

double *

sol

)

solve the system matrix

solve linear system

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Member Data Documentation

double* TSystemTCD3D::B

protected

working rhs, used in AssembleSystMat()

double* TSystemTCD3D::defect

protected

to store defect

TDiscreteForm3D* TSystemTCD3D::DiscreteFormMRhs

protected

Stiffness part of the SUPG matrix time-consistent part of the SUPG matrix Discrete form of the M and rhs matrics

double TSystemTCD3D::gamma

protected

factor that multplied with Mat A in working rhs

TAssembleMat3D** TSystemTCD3D::MMatRhsAssemble

protected

instance of the Assemble class

TSquareMatrix3D** TSystemTCD3D::sqmatrixM

protected

M mass matrix

bool TSystemTCD3D::SystMatAssembled

protected

Systmat assemble indicator

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

• include/System/SystemTCD3D.h
• src/System/SystemTCD3D.C