Defining boundary conditions. More...
#include <variationalfunctional.hh>
Detailed Description
Defining boundary conditions.
This evaluation cache concept defines the interface that is accessed by the assembler. This is not a base class, only a documentation!
Different objects have to be independent w.r.t. parallel execution.
Definition at line 624 of file variationalfunctional.hh.
Public Types | |
| typedef AnsatzVars::Grid::LeafIntersectionIterator | FaceIterator |
| Type of the Face Information. More... | |
Public Member Functions | |
| BoundaryCache (Functional const &f, typename Vars::VariableSet const &u, int const flags=7) | |
| template<class FaceIterator > | |
| void | moveTo (FaceIterator const &) |
| template<class Position , class Evaluators > | |
| void | evaluateAt (Position const &x, Evaluators const &evaluators) |
| Scalar | d0 () const |
| template<int row, int dim> | |
| Dune::FieldVector< Scalar, Variables::template Components< row >::m > | d1 (VariationalArg< Scalar, dim > const &arg) const |
| template<int row, int col, int dim> | |
| Dune::FieldMatrix< Scalar, Variables::template Components< row >::m, Variables::template Components< col >::m > | d2 (VariationalArg< Scalar, dim > const &argT, VariationalArg< Scalar, dim > const &argA) const |
Member Typedef Documentation
◆ FaceIterator
| typedef AnsatzVars::Grid::LeafIntersectionIterator NonlinearVariationalFunctional::BoundaryCache::FaceIterator |
Type of the Face Information.
Definition at line 629 of file variationalfunctional.hh.
Constructor & Destructor Documentation
◆ BoundaryCache()
|
inline |
Constructs an evaluation cache from the associated functional f_, a point of linearization u_, and flags from the assembler
- Parameters
-
[in] flags A bit field that tells the cache what parts are to be assembled. If flags & Assembler::RHS is false, d1() will never be called. If flags & Assembler::VALUE is false, d0() will never be called, and d2() will never be called if flags & Assembler::MATRIX is false. This information can be used to restrict the computation to the actually required quantities.
Definition at line 640 of file variationalfunctional.hh.
Member Function Documentation
◆ d0()
| Scalar NonlinearVariationalFunctional::BoundaryCache::d0 | ( | ) | const |
Returns the value \(g(u(x))\)
◆ d1()
| Dune::FieldVector< Scalar, Variables::template Components< row >::m > NonlinearVariationalFunctional::BoundaryCache::d1 | ( | VariationalArg< Scalar, dim > const & | arg | ) | const |
Returns the directional derivative of \(g\), with respect to the variable \(u_{\mathrm{row}}\) in direction of the test function given by arg.
◆ d2()
| Dune::FieldMatrix< Scalar, Variables::template Components< row >::m, Variables::template Components< col >::m > NonlinearVariationalFunctional::BoundaryCache::d2 | ( | VariationalArg< Scalar, dim > const & | argT, |
| VariationalArg< Scalar, dim > const & | argA | ||
| ) | const |
Returns the second directional derivative of \(g\), with respect to the variables \(u_{\mathrm{row}}\) and \(u_{\mathrm{col}}\) in direction of the test functions given by argT and the ansatz functions, given by argA.
This method need only be defined for values of row/col for which D2<row,col>::present is true.
◆ evaluateAt()
|
inline |
Construct all data that is constant at one point. Default implementation in EvalBaseCache: assert(false)
Definition at line 654 of file variationalfunctional.hh.
◆ moveTo()
|
inline |
Construct all data that is constant in an entity. Default implementation in EvalBaseCache: does nothing
Definition at line 646 of file variationalfunctional.hh.
The documentation for this struct was generated from the following file:
