AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM > Class Template Reference

#include <AbstractNonlinearAssemblerSolverHybrid.hpp>

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List of all members.

Public Member Functions

void ComputeResidual (const Vec currentGuess, Vec residualVector)
void ComputeJacobian (const Vec currentGuess, Mat *pJacobian)
 AbstractNonlinearAssemblerSolverHybrid (AbstractTetrahedralMesh< ELEMENT_DIM, SPACE_DIM > *pMesh, BoundaryConditionsContainer< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM > *pBoundaryConditions, unsigned numQuadPoints=2)
virtual ~AbstractNonlinearAssemblerSolverHybrid ()
virtual Vec Solve (Vec initialGuess, bool useAnalyticalJacobian=false)
void SetNonlinearSolver (AbstractNonlinearSolver *pNonlinearSolver)
bool VerifyJacobian (double tol)

Protected Member Functions

void ApplyDirichletConditions (Vec currentGuess, Vec residual, Mat *pMat)
void ComputeJacobianNumerically (const Vec currentGuess, Mat *pJacobian)

Protected Attributes

AbstractTetrahedralMesh
< ELEMENT_DIM, SPACE_DIM > * 		mpMesh
BoundaryConditionsContainer
< ELEMENT_DIM, SPACE_DIM,
PROBLEM_DIM > * 		mpBoundaryConditions
AbstractNonlinearSolver * mpSolver
bool mWeAllocatedSolverMemory
bool mUseAnalyticalJacobian

Detailed Description

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM, unsigned PROBLEM_DIM>
class AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >

Abstract solver for solving nonlinear elliptic PDEs.

Definition at line 127 of file AbstractNonlinearAssemblerSolverHybrid.hpp.

Constructor & Destructor Documentation

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM, unsigned PROBLEM_DIM>
AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::AbstractNonlinearAssemblerSolverHybrid ( AbstractTetrahedralMesh< ELEMENT_DIM, SPACE_DIM > *  pMesh,
BoundaryConditionsContainer< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM > *  pBoundaryConditions,
unsigned  numQuadPoints = 2 
) [inline]

Constructor

Parameters:
pMesh The mesh
pBoundaryConditions The boundary conditions to apply
numQuadPoints number of quadrature points (defaults to 2)

Definition at line 249 of file AbstractNonlinearAssemblerSolverHybrid.hpp.

References AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mpMesh, AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mpSolver, and AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mWeAllocatedSolverMemory.

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM, unsigned PROBLEM_DIM>
AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::~AbstractNonlinearAssemblerSolverHybrid (  )  [inline, virtual]

Destructor.

Definition at line 272 of file AbstractNonlinearAssemblerSolverHybrid.hpp.

References AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mpSolver, and AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mWeAllocatedSolverMemory.

Member Function Documentation

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM, unsigned PROBLEM_DIM>
void AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::ApplyDirichletConditions ( Vec  currentGuess,
Vec  residual,
Mat *  pMat 
) [inline, protected]

Apply Dirichlet boundary conditions to either the residual or Jacobian.

Parameters:
currentGuess the solution guess for the current nonlinear solver iteration
residual the residual to apply boundary conditions to (can be NULL if bcs to be applied to jacobian only)
pMat the jacobian to apply boundary conditions to (can be NULL if bcs to be applied to residual only)

Definition at line 281 of file AbstractNonlinearAssemblerSolverHybrid.hpp.

References AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mpBoundaryConditions, and AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mpMesh.

Referenced by AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::ComputeJacobian(), and AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::ComputeResidual().

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM, unsigned PROBLEM_DIM>
void AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::ComputeJacobianNumerically ( const Vec  currentGuess,
Mat *  pJacobian 
) [inline, protected]

Computes the Jacobian numerically i.e. an approximation, using numerical partial derivatives.

Parameters:
currentGuess Independent variable, u in f(u), for example
pJacobian A pointer to the Jacobian matrix

Definition at line 332 of file AbstractNonlinearAssemblerSolverHybrid.hpp.

References PetscVecTools::AddToElement(), PetscMatTools::AssembleFinal(), AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::ComputeResidual(), PetscTools::CreateVec(), AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mpMesh, PetscVecTools::Scale(), PetscMatTools::SetElement(), and PetscVecTools::WAXPY().

Referenced by AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::ComputeJacobian().

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM, unsigned PROBLEM_DIM>
void AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::ComputeResidual ( const Vec  currentGuess,
Vec  residualVector 
) [inline]

Compute the residual vector given the current solution guess.

Parameters:
currentGuess The solution guess for the current nonlinear solve iteration.
residualVector We fill this with the residual vector.
NOTE: this method is called indirectly by the PETSc iterative solvers, so must be public.

Definition at line 297 of file AbstractNonlinearAssemblerSolverHybrid.hpp.

References AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::ApplyDirichletConditions(), PetscVecTools::Assemble(), AbstractFeObjectAssembler< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM, true, true, NONLINEAR >::AssembleVector(), AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mpBoundaryConditions, AbstractFeObjectAssembler< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM, true, true, NONLINEAR >::SetApplyNeummanBoundaryConditionsToVector(), AbstractFeObjectAssembler< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM, true, true, NONLINEAR >::SetCurrentSolution(), and AbstractFeObjectAssembler< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM, true, true, NONLINEAR >::SetVectorToAssemble().

Referenced by AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::ComputeJacobianNumerically().

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM, unsigned PROBLEM_DIM>
void AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::ComputeJacobian ( const Vec  currentGuess,
Mat *  pJacobian 
) [inline]

Compute the Jacobian matrix given a current guess at the solution. Choose whether to use a numerical or analytical method based on a flag provided by the user (in Solve()).

Parameters:
currentGuess The solution guess for the current iteration.
pJacobian Pointer to object to fill with the jacobian matrix.
NOTE: this method is called indirectly by the PETSc iterative solvers, so must be public.

Definition at line 310 of file AbstractNonlinearAssemblerSolverHybrid.hpp.

References AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::ApplyDirichletConditions(), PetscMatTools::AssembleFinal(), PetscMatTools::AssembleIntermediate(), AbstractFeObjectAssembler< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM, true, true, NONLINEAR >::AssembleMatrix(), AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::ComputeJacobianNumerically(), AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mUseAnalyticalJacobian, AbstractFeObjectAssembler< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM, true, true, NONLINEAR >::SetCurrentSolution(), and AbstractFeObjectAssembler< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM, true, true, NONLINEAR >::SetMatrixToAssemble().

Referenced by AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::VerifyJacobian().

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM, unsigned PROBLEM_DIM>
Vec AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::Solve ( Vec  initialGuess,
bool  useAnalyticalJacobian = false 
) [inline, virtual]

Assemble and solve the system for a nonlinear elliptic PDE.

Parameters:
initialGuess An initial guess for the iterative solver
useAnalyticalJacobian Set to true to use an analytically calculated jacobian matrix rather than a numerically approximated one.
Returns:
A PETSc vector giving the solution at each mesh node.

Definition at line 393 of file AbstractNonlinearAssemblerSolverHybrid.hpp.

References EXCEPTION, AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mpMesh, AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mpSolver, AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mUseAnalyticalJacobian, and AbstractNonlinearSolver::Solve().

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM, unsigned PROBLEM_DIM>
void AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::SetNonlinearSolver ( AbstractNonlinearSolver *  pNonlinearSolver  )  [inline]

SetNonlinearSolver - by default a SimplePetscNonlinearSolver is created and used in this class, this method can be called to use a different AbstractNonlinearSolver.

Parameters:
pNonlinearSolver a nonlinear solver

Definition at line 423 of file AbstractNonlinearAssemblerSolverHybrid.hpp.

References AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mpSolver, and AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mWeAllocatedSolverMemory.

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM, unsigned PROBLEM_DIM>
bool AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::VerifyJacobian ( double  tol  )  [inline]

A helper method for use when writing concrete assemblers. Once the user has calculated (on paper) the weak form and the form of the ComputeMatrixTerm method, they can check whether the analytic Jacobian matches the numerical Jacobian to verify the correctness of the code.

Parameters:
tol A tolerance which defaults to 1e-5
Returns:
true if the componentwise difference between the matrices is less than the tolerance, false otherwise.
This method should NOT be run in simulations - it is only to verify the correctness of the concrete assembler code. Allocates dense matrices.

Definition at line 435 of file AbstractNonlinearAssemblerSolverHybrid.hpp.

References AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::ComputeJacobian(), PetscTools::CreateAndSetVec(), AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mpMesh, AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mUseAnalyticalJacobian, and PetscTools::SetupMat().

Member Data Documentation

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM, unsigned PROBLEM_DIM>
AbstractTetrahedralMesh<ELEMENT_DIM,SPACE_DIM>* AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mpMesh [protected]

Mesh class

Reimplemented from AbstractFeObjectAssembler< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM, true, true, NONLINEAR >.

Definition at line 131 of file AbstractNonlinearAssemblerSolverHybrid.hpp.

Referenced by AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::AbstractNonlinearAssemblerSolverHybrid(), AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::ApplyDirichletConditions(), AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::ComputeJacobianNumerically(), AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::Solve(), and AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::VerifyJacobian().

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM, unsigned PROBLEM_DIM>
BoundaryConditionsContainer<ELEMENT_DIM,SPACE_DIM,PROBLEM_DIM>* AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mpBoundaryConditions [protected]

Boundary conditions container

Reimplemented from AbstractFeObjectAssembler< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM, true, true, NONLINEAR >.

Definition at line 134 of file AbstractNonlinearAssemblerSolverHybrid.hpp.

Referenced by AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::ApplyDirichletConditions(), and AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::ComputeResidual().

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM, unsigned PROBLEM_DIM>
AbstractNonlinearSolver* AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mpSolver [protected]

The nonlinear solver.

Definition at line 137 of file AbstractNonlinearAssemblerSolverHybrid.hpp.

Referenced by AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::AbstractNonlinearAssemblerSolverHybrid(), AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::SetNonlinearSolver(), AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::Solve(), and AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::~AbstractNonlinearAssemblerSolverHybrid().

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM, unsigned PROBLEM_DIM>
bool AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mWeAllocatedSolverMemory [protected]

Whether memory has been allocated for the solver.

Definition at line 140 of file AbstractNonlinearAssemblerSolverHybrid.hpp.

Referenced by AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::AbstractNonlinearAssemblerSolverHybrid(), AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::SetNonlinearSolver(), and AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::~AbstractNonlinearAssemblerSolverHybrid().

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM, unsigned PROBLEM_DIM>
bool AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::mUseAnalyticalJacobian [protected]

Whether to use an analytical expression for the Jacobian.

Definition at line 143 of file AbstractNonlinearAssemblerSolverHybrid.hpp.

Referenced by AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::ComputeJacobian(), AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::Solve(), and AbstractNonlinearAssemblerSolverHybrid< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::VerifyJacobian().

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