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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 //
13 // License for the specific language governing rights and limitations under
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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  it = pParams.find("OutputFrequency");
67  ASSERTL0(it != pParams.end(), "Missing parameter 'OutputFrequency'.");
68  LibUtilities::Equation equ(m_session, it->second);
69  m_outputFrequency = floor(equ.Evaluate());
70 
72  ::AllocateSharedPtr(pSession->GetComm());
73 
74 }
75 
77 {
78 
79 }
80 
83  const NekDouble &time)
84 {
85  m_index = 0;
86  m_outputIndex = 0;
87  v_Update(pFields, time);
88 }
89 
92  const NekDouble &time)
93 {
94  if (m_index++ % m_outputFrequency > 0)
95  {
96  return;
97  }
98 
99  std::stringstream vOutputFilename;
100  vOutputFilename << m_outputFile << "_" << m_outputIndex << ".chk";
101 
102  std::vector<LibUtilities::FieldDefinitionsSharedPtr> FieldDef
103  = pFields[0]->GetFieldDefinitions();
104  std::vector<std::vector<NekDouble> > FieldData(FieldDef.size());
105 
106  // copy Data into FieldData and set variable
107  for(int j = 0; j < pFields.num_elements(); ++j)
108  {
109  for(int i = 0; i < FieldDef.size(); ++i)
110  {
111  // Could do a search here to find correct variable
112  FieldDef[i]->m_fields.push_back(m_session->GetVariable(j));
113  pFields[0]->AppendFieldData(FieldDef[i],
114  FieldData[i],
115  pFields[j]->UpdateCoeffs());
116  }
117  }
118  m_fld->Write(vOutputFilename.str(),FieldDef,FieldData);
119  m_outputIndex++;
120 }
121 
124  const NekDouble &time)
125 {
126 
127 }
128 
130 {
131  return true;
132 }
133 }
134 }
#define ASSERTL0(condition, msg)
Definition: ErrorUtil.hpp:188
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:51
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