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MueLu_SingleLevelMatlabFactory_def.hpp
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46 #ifndef MUELU_SINGLELEVELMATLABFACTORY_DEF_HPP
47 #define MUELU_SINGLELEVELMATLABFACTORY_DEF_HPP
48 #include <Xpetra_Matrix.hpp>
49 #include <Xpetra_MultiVector.hpp>
50 
51 #include "MueLu_Monitor.hpp"
52 #include "MueLu_Aggregates.hpp"
53 #include "MueLu_AmalgamationInfo.hpp"
56 
57 
58 #ifdef HAVE_MUELU_MATLAB
59 #include "mex.h"
60 
61 namespace MueLu {
62 
63  template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
65  : hasDeclaredInput_(false) { }
66 
67  template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
69  {
70  RCP<ParameterList> validParamList = getInputParamList();
71  validParamList->set<std::string>("Provides" , "" ,"A comma-separated list of objects provided by the SingleLevelMatlabFactory");
72  validParamList->set<std::string>("Needs" , "", "A comma-separated list of objects needed by the SingleLevelMatlabFactory");
73  validParamList->set<std::string>("Function" , "" , "The name of the Matlab MEX function to call for Build()");
74  return validParamList;
75  }
76 
77  template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
79  {
80  const Teuchos::ParameterList& pL = GetParameterList();
81  needs_ = tokenizeList(pL.get<std::string>("Needs"));
82  // Declare inputs
83  for(size_t i = 0; i < needs_.size(); i++)
84  {
85  if(!IsParamMuemexVariable(needs_[i]) && needs_[i] != "Level")
86  this->Input(currentLevel, needs_[i]);
87  }
88  hasDeclaredInput_ = true;
89  }
90 
91  template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
93  {
94  FactoryMonitor m(*this, "Build", currentLevel);
95 
96  const Teuchos::ParameterList& pL = GetParameterList();
97  using Teuchos::rcp;
98  using Teuchos::rcp;
99  using namespace std;
100  // NOTE: mexOutput[0] is the "Provides." Might want to modify to allow for additional outputs
101  string needsList = pL.get<string>("Needs");
102  vector<RCP<MuemexArg>> InputArgs = processNeeds<Scalar, LocalOrdinal, GlobalOrdinal, Node>(this, needsList, currentLevel);
103  string providesList = pL.get<std::string>("Provides");
104  size_t numProvides = tokenizeList(providesList).size();
105  // Call mex function
106  string matlabFunction = pL.get<std::string>("Function");
107  if(!matlabFunction.length())
108  throw std::runtime_error("Invalid matlab function name");
109  vector<Teuchos::RCP<MuemexArg> > mexOutput = callMatlab(matlabFunction, numProvides, InputArgs);
110  // Set output in level
111  processProvides<Scalar, LocalOrdinal, GlobalOrdinal, Node>(mexOutput, this, providesList, currentLevel);
112  }
113 
114  template <class Scalar,class LocalOrdinal, class GlobalOrdinal, class Node>
116  std::ostringstream out;
117  const Teuchos::ParameterList& pL = GetParameterList();
118  out << "SingleLevelMatlabFactory["<<pL.get<std::string>("Function")<<"]";
119  return out.str();
120  }
121 
122 
123 } //namespace MueLu
124 
125 #define MUELU_SINGLELEVELMATLABFACTORY_SHORT
126 #endif // HAVE_MUELU_MATLAB
127 
128 #endif // MUELU_SINGLELEVELMATLABFACTORY_DEF_HPP
129 
std::vector< std::string > tokenizeList(const std::string &params)
void Build(Level &currentLevel) const
Build an object with this factory.
std::string description() const
@ name Description
T & get(const std::string &name, T def_value)
ParameterList & set(std::string const &name, T const &value, std::string const &docString="", RCP< const ParameterEntryValidator > const &validator=null)
Timer to be used in factories. Similar to Monitor but with additional timers.
void DeclareInput(Level &currentLevel) const
Specifies the data that this class needs, and the factories that generate that data.
bool IsParamMuemexVariable(const std::string &name)
Teuchos::RCP< Teuchos::ParameterList > getInputParamList()
TEUCHOS_DEPRECATED RCP< T > rcp(T *p, Dealloc_T dealloc, bool owns_mem)
Class that holds all level-specific information.
Definition: MueLu_Level.hpp:99
RCP< const ParameterList > GetValidParameterList() const
Return a const parameter list of valid parameters that setParameterList() will accept.
std::vector< RCP< MuemexArg > > callMatlab(std::string function, int numOutputs, std::vector< RCP< MuemexArg >> args)