dolfin::SystemAssembler Class Reference

#include <SystemAssembler.h>

Inheritance diagram for dolfin::SystemAssembler:

Collaboration diagram for dolfin::SystemAssembler:

Public Member Functions
	SystemAssembler (std::shared_ptr< const Form > a, std::shared_ptr< const Form > L, std::vector< std::shared_ptr< const DirichletBC >> bcs)
	Constructor.
void	assemble (GenericMatrix &A, GenericVector &b)
	Assemble system (A, b)
void	assemble (GenericMatrix &A)
	Assemble matrix A.
void	assemble (GenericVector &b)
	Assemble vector b.
void	assemble (GenericMatrix &A, GenericVector &b, const GenericVector &x0)
void	assemble (GenericVector &b, const GenericVector &x0)
Public Member Functions inherited from dolfin::AssemblerBase
	AssemblerBase ()
	Constructor.
void	init_global_tensor (GenericTensor &A, const Form &a)

Additional Inherited Members
Public Attributes inherited from dolfin::AssemblerBase
bool	add_values
bool	finalize_tensor
bool	keep_diagonal
Static Protected Member Functions inherited from dolfin::AssemblerBase
static void	check (const Form &a)
	Check form.
static std::string	progress_message (std::size_t rank, std::string integral_type)
	Pretty-printing for progress bar.

Detailed Description

This class provides an assembler for systems of the form Ax = b. It differs from the default DOLFIN assembler in that it applies boundary conditions at the time of assembly, which preserves any symmetries in A.

Member Function Documentation

assemble() [1/2]

void SystemAssembler::assemble	(	GenericMatrix &	A,
		GenericVector &	b,
		const GenericVector &	x0
	)

Assemble system (A, b) for (negative) increment dx, where x = x0 - dx is solution to system a == -L subject to bcs. Suitable for use inside a (quasi-)Newton solver.

assemble() [2/2]

void SystemAssembler::assemble	(	GenericVector &	b,
		const GenericVector &	x0
	)

Assemble rhs vector b for (negative) increment dx, where x = x0 - dx is solution to system a == -L subject to bcs. Suitable for use inside a (quasi-)Newton solver.

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

• /home/fenics/shared/dolfin/dolfin/fem/SystemAssembler.h
• /home/fenics/shared/dolfin/dolfin/fem/SystemAssembler.cpp