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RTOpPack_TOpLinearCombination_decl.hpp
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42 
43 #ifndef RTOPPACK_TOP_LINEAR_COMBINATION_DECL_HPP
44 #define RTOPPACK_TOP_LINEAR_COMBINATION_DECL_HPP
45 
46 #include "RTOpPack_RTOpTHelpers.hpp"
47 #include "Teuchos_Workspace.hpp"
48 
49 
50 namespace RTOpPack {
51 
52 
63 template<class Scalar>
64 class TOpLinearCombination : public RTOpT<Scalar> {
65 public:
66 
69  const ArrayView<const Scalar> &alpha_in = Teuchos::null,
71  );
72 
74  void alpha( const ArrayView<const Scalar> &alpha_in );
75 
77  const ArrayView<const Scalar> alpha() const;
78 
80  void beta( const Scalar& beta_in );
81 
83  Scalar beta() const;
84 
86  int num_vecs() const;
87 
90 
92  void apply_op_impl(
93  const ArrayView<const ConstSubVectorView<Scalar> > &sub_vecs,
94  const ArrayView<const SubVectorView<Scalar> > &targ_sub_vecs,
95  const Ptr<ReductTarget> &reduct_obj_inout
96  ) const;
97 
99 
100 private:
101 
102  Scalar beta_;
103  Array<Scalar> alpha_;
104 
105 };
106 
107 
108 } // namespace RTOpPack
109 
110 
111 #endif // RTOPPACK_TOP_LINEAR_COMBINATION_DECL_HPP
Linear combination transformation operator: z0[i] = beta*z0[i].
void apply_op_impl(const ArrayView< const ConstSubVectorView< Scalar > > &sub_vecs, const ArrayView< const SubVectorView< Scalar > > &targ_sub_vecs, const Ptr< ReductTarget > &reduct_obj_inout) const
const ArrayView< const Scalar > alpha() const
TOpLinearCombination(const ArrayView< const Scalar > &alpha_in=Teuchos::null, const Scalar &beta=Teuchos::ScalarTraits< Scalar >::zero())