Nektar++
FilterCheckpoint.cpp
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1 ///////////////////////////////////////////////////////////////////////////////
2 //
3 // File FilterCheckpoint.cpp
4 //
5 // For more information, please see: http://www.nektar.info
6 //
7 // The MIT License
8 //
9 // Copyright (c) 2006 Division of Applied Mathematics, Brown University (USA),
10 // Department of Aeronautics, Imperial College London (UK), and Scientific
11 // Computing and Imaging Institute, University of Utah (USA).
12 //
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31 //
32 // Description: Outputs solution fields during time-stepping.
33 //
34 ///////////////////////////////////////////////////////////////////////////////
35 
37 
38 namespace Nektar
39 {
40 namespace SolverUtils
41 {
42 std::string FilterCheckpoint::className =
44  "Checkpoint", FilterCheckpoint::create);
45 
48  const ParamMap &pParams) :
49  Filter(pSession)
50 {
51  ParamMap::const_iterator it;
52 
53  // OutputFile
54  it = pParams.find("OutputFile");
55  if (it == pParams.end())
56  {
57  m_outputFile = m_session->GetSessionName();
58  }
59  else
60  {
61  ASSERTL0(it->second.length() > 0, "Empty parameter 'OutputFile'.");
62  m_outputFile = it->second;
63  }
64 
65  // OutputFrequency
66  ASSERTL0(it != pParams.end(), "Missing parameter 'OutputFrequency'.");
67  LibUtilities::Equation equ(m_session, it->second);
68  m_outputFrequency = floor(equ.Evaluate());
69 
70  m_outputIndex = 0;
71  m_index = 0;
73  ::AllocateSharedPtr(pSession->GetComm());
74 
75 }
76 
78 {
79 
80 }
81 
84  const NekDouble &time)
85 {
86  m_index = 0;
87  m_outputIndex = 0;
88 }
89 
92  const NekDouble &time)
93 {
94  m_index++;
95  if (m_index % m_outputFrequency > 0)
96  {
97  return;
98  }
99 
100  std::stringstream vOutputFilename;
101  vOutputFilename << m_outputFile << "_" << m_outputIndex << ".chk";
102 
103  std::vector<LibUtilities::FieldDefinitionsSharedPtr> FieldDef
104  = pFields[0]->GetFieldDefinitions();
105  std::vector<std::vector<NekDouble> > FieldData(FieldDef.size());
106 
107  // copy Data into FieldData and set variable
108  for(int j = 0; j < pFields.num_elements(); ++j)
109  {
110  for(int i = 0; i < FieldDef.size(); ++i)
111  {
112  // Could do a search here to find correct variable
113  FieldDef[i]->m_fields.push_back(m_session->GetVariable(j));
114  pFields[0]->AppendFieldData(FieldDef[i],
115  FieldData[i],
116  pFields[j]->UpdateCoeffs());
117  }
118  }
119  m_fld->Write(vOutputFilename.str(),FieldDef,FieldData);
120  m_outputIndex++;
121 }
122 
125  const NekDouble &time)
126 {
127 
128 }
129 
131 {
132  return true;
133 }
134 }
135 }
#define ASSERTL0(condition, msg)
Definition: ErrorUtil.hpp:161
static boost::shared_ptr< DataType > AllocateSharedPtr()
Allocate a shared pointer from the memory pool.
static FilterSharedPtr create(const LibUtilities::SessionReaderSharedPtr &pSession, const std::map< std::string, std::string > &pParams)
Creates an instance of this class.
boost::shared_ptr< SessionReader > SessionReaderSharedPtr
Definition: MeshPartition.h:50
virtual SOLVER_UTILS_EXPORT ~FilterCheckpoint()
SOLVER_UTILS_EXPORT FilterCheckpoint(const LibUtilities::SessionReaderSharedPtr &pSession, const ParamMap &pParams)
double NekDouble
virtual void v_Finalise(const Array< OneD, const MultiRegions::ExpListSharedPtr > &pFields, const NekDouble &time)
LibUtilities::FieldIOSharedPtr m_fld
std::map< std::string, std::string > ParamMap
Definition: Filter.h:67
LibUtilities::SessionReaderSharedPtr m_session
Definition: Filter.h:84
virtual void v_Initialise(const Array< OneD, const MultiRegions::ExpListSharedPtr > &pFields, const NekDouble &time)
virtual void v_Update(const Array< OneD, const MultiRegions::ExpListSharedPtr > &pFields, const NekDouble &time)
FilterFactory & GetFilterFactory()
Definition: Filter.cpp:42
static std::string className
Name of the class.
tKey RegisterCreatorFunction(tKey idKey, CreatorFunction classCreator, tDescription pDesc="")
Register a class with the factory.
Definition: NekFactory.hpp:215