#include <deal.II/numerics/dof_print_solver_step.h>

Inheritance diagram for DoFPrintSolverStep< dim, SolverType, VectorType >:

Public Member Functions
	DoFPrintSolverStep (SolverControl &control, VectorMemory< VectorType > &mem, DataOut< dim > &data_out, const std::string &basename)

virtual void	print_vectors (const unsigned int step, const VectorType &x, const VectorType &r, const VectorType &d) const

Private Attributes
DataOut< dim > &	out

const std::string	basename

Detailed Description

template<int dim, typename SolverType, typename VectorType = Vector<double>>
class DoFPrintSolverStep< dim, SolverType, VectorType >

Print intermediate solutions in solvers. This is derived from a solver class provided as template argument. It implements the print_vector function of the solver using a DoFHandler. This way, the intermediate vectors can be viewed as finite element functions. This class might be used first to understand how solvers work (for example to visualize the smoothing properties of various solvers, e.g. in a multigrid context), and second to investigate why and how a solver fails to solve certain classes of problems.

Objects of this class are provided with a solver class through a template argument, and with a file name (as a string), with which a new file is constructed in each iteration (named basename.[step].[suffix]) and into which the solution is written as a finite element field using the DataOut class. Please note that this class may produce enormous amounts of data!

Definition at line 54 of file dof_print_solver_step.h.

Constructor & Destructor Documentation

◆ DoFPrintSolverStep()

template<int dim, typename SolverType , typename VectorType >

DoFPrintSolverStep< dim, SolverType, VectorType >::DoFPrintSolverStep	(	SolverControl &	control,
		VectorMemory< VectorType > &	mem,
		DataOut< dim > &	data_out,
		const std::string &	basename
	)

Constructor. First, we take the arguments needed for the solver. data_out is the object doing the output as a finite element function.

One output file with the name basename.[step].[suffix] will be produced for each iteration step.

Definition at line 94 of file dof_print_solver_step.h.

Member Function Documentation

◆ print_vectors()

template<int dim, typename SolverType , typename VectorType >

void DoFPrintSolverStep< dim, SolverType, VectorType >::print_vectors	(	const unsigned int	step,
		const VectorType &	x,
		const VectorType &	r,
		const VectorType &	d
	)		const

virtual

Call-back function for the iterative method.

Definition at line 107 of file dof_print_solver_step.h.

Member Data Documentation

◆ out

template<int dim, typename SolverType , typename VectorType = Vector<double>>

DataOut<dim>& DoFPrintSolverStep< dim, SolverType, VectorType >::out

private

Output object.

Definition at line 82 of file dof_print_solver_step.h.

◆ basename

template<int dim, typename SolverType , typename VectorType = Vector<double>>

const std::string DoFPrintSolverStep< dim, SolverType, VectorType >::basename

private

Base of filenames.

Definition at line 87 of file dof_print_solver_step.h.

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

include/deal.II/numerics/dof_print_solver_step.h

Public Member Functions

Private Attributes