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overlappingoperator.hh
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27 #ifndef EWOMS_OVERLAPPING_OPERATOR_HH
28 #define EWOMS_OVERLAPPING_OPERATOR_HH
29 
30 #include <dune/istl/operators.hh>
31 
32 namespace Ewoms {
33 namespace Linear {
34 
38 template <class OverlappingMatrix, class DomainVector, class RangeVector>
40  : public Dune::AssembledLinearOperator<OverlappingMatrix, DomainVector, RangeVector>
41 {
42  typedef typename OverlappingMatrix::Overlap Overlap;
43 
44 public:
46  typedef DomainVector domain_type;
47  typedef typename domain_type::field_type field_type;
48 
49  // redefine the category, that is the only difference
50  enum { category = Dune::SolverCategory::overlapping };
51 
52  OverlappingOperator(const OverlappingMatrix& A) : A_(A)
53  {}
54 
56  virtual void apply(const DomainVector& x, RangeVector& y) const
57  {
58  A_.mv(x, y);
59  y.sync();
60  }
61 
63  virtual void applyscaleadd(field_type alpha, const DomainVector& x,
64  RangeVector& y) const
65  {
66  A_.usmv(alpha, x, y);
67  y.sync();
68  }
69 
71  virtual const OverlappingMatrix& getmat() const
72  { return A_; }
73 
74  const Overlap& overlap() const
75  { return A_.overlap(); }
76 
77 private:
78  const OverlappingMatrix& A_;
79 };
80 
81 } // namespace Linear
82 } // namespace Ewoms
83 
84 #endif
virtual const OverlappingMatrix & getmat() const
returns the matrix
Definition: overlappingoperator.hh:71
An overlap aware linear operator usable by ISTL.
Definition: overlappingoperator.hh:39
DomainVector domain_type
export types
Definition: overlappingoperator.hh:46
virtual void apply(const DomainVector &x, RangeVector &y) const
apply operator to x:
Definition: overlappingoperator.hh:56
virtual void applyscaleadd(field_type alpha, const DomainVector &x, RangeVector &y) const
apply operator to x, scale and add:
Definition: overlappingoperator.hh:63