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MueLu_PreDropFunctionConstVal_def.hpp
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46 #ifndef MUELU_PREDROPFUNCTIONCONSTVAL_DEF_HPP
47 #define MUELU_PREDROPFUNCTIONCONSTVAL_DEF_HPP
48 
50 
52 #include "MueLu_Graph.hpp"
53 #include "Teuchos_ScalarTraits.hpp"
54 
55 namespace MueLu {
56 
57  template <class Scalar,class LocalOrdinal, class GlobalOrdinal, class Node>
59  : threshold_(threshold) { }
60 
61  template <class Scalar,class LocalOrdinal, class GlobalOrdinal, class Node>
62  bool PreDropFunctionConstVal<Scalar, LocalOrdinal, GlobalOrdinal, Node>::Drop(size_t /* lrow */, GlobalOrdinal grow, size_t k, LocalOrdinal /* lcid */, GlobalOrdinal gcid, const Teuchos::ArrayView<const LocalOrdinal> & /* indices */, const Teuchos::ArrayView<const Scalar> & vals) {
64  return false; // keep values
65  }
66  return true; // values too small -> drop them
67  }
68 
69  template <class Scalar,class LocalOrdinal, class GlobalOrdinal, class Node>
71  return threshold_;
72  }
73 
74 
75  template <class Scalar,class LocalOrdinal, class GlobalOrdinal, class Node>
77  std::ostringstream out;
78  out << "PreDropFunctionConstVal: threshold = " << threshold_ << std::endl;
79  return out.str();
80  }
81 
82  /*template <class Scalar,class LocalOrdinal, class GlobalOrdinal, class Node>
83  void PreDropFunctionConstVal<Scalar, LocalOrdinal, GlobalOrdinal, Node>::describe(Teuchos::FancyOStream &out, const VerbLevel verbLevel) const {
84  MUELU_DESCRIBE;
85  if (verbLevel & Parameters0) {
86  out0 << "PreDropFunctionConstVal: threshold = " << threshold_ << std::endl;
87  }
88  }*/
89 
90 }
91 
92 #define MUELU_PREDROPFUNCTIONCONSTVAL_SHORT
93 #endif // MUELU_PREDROPFUNCTIONCONSTVAL_DEF_HPP
bool Drop(size_t lrow, GlobalOrdinal grow, size_t k, LocalOrdinal lcid, GlobalOrdinal gcid, const Teuchos::ArrayView< const LocalOrdinal > &indices, const Teuchos::ArrayView< const Scalar > &vals)
Scalar GetThreshold() const
Return threshold value.
std::string description() const
Return a simple one-line description of this object.
PreDropFunctionConstVal(const Scalar threshold=0.0)
Constructor.