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ProcessJacobianEnergy.cpp
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2 //
3 // File: ProcessJacobianEnergy.cpp
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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).
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31 //
32 // Description: Compute energy of Jacobian.
33 //
34 ////////////////////////////////////////////////////////////////////////////////
35 
36 #include <iostream>
37 #include <string>
38 using namespace std;
39 
40 #include "ProcessJacobianEnergy.h"
41 
44 
45 namespace Nektar
46 {
47 namespace FieldUtils
48 {
49 
50 ModuleKey ProcessJacobianEnergy::className =
52  ModuleKey(eProcessModule, "jacobianenergy"),
53  ProcessJacobianEnergy::create,
54  "Show high frequency energy of Jacobian.");
55 
56 ProcessJacobianEnergy::ProcessJacobianEnergy(FieldSharedPtr f)
57  : ProcessModule(f)
58 {
59  m_config["topmodes"] =
60  ConfigOption(false, "1", "how many top modes to keep ");
61 }
62 
64 {
65 }
66 
67 void ProcessJacobianEnergy::Process(po::variables_map &vm)
68 {
69  if (m_f->m_verbose)
70  {
71  if (m_f->m_comm->TreatAsRankZero())
72  {
73  cout << "ProcessJacobianEnergy: Processing Jacobian..." << endl;
74  }
75  }
76 
77  Array<OneD, NekDouble> phys = m_f->m_exp[0]->UpdatePhys();
78  Array<OneD, NekDouble> coeffs = m_f->m_exp[0]->UpdateCoeffs();
79  Array<OneD, NekDouble> tmp, tmp1;
80 
81  for (int i = 0; i < m_f->m_exp[0]->GetExpSize(); ++i)
82  {
83  // copy Jacobian into field
84  StdRegions::StdExpansionSharedPtr Elmt = m_f->m_exp[0]->GetExp(i);
85 
86  int ncoeffs = Elmt->GetNcoeffs();
87  int nquad = Elmt->GetTotPoints();
88  int coeffoffset = m_f->m_exp[0]->GetCoeff_Offset(i);
89  Array<OneD, NekDouble> coeffs1(ncoeffs);
91  Elmt->GetMetricInfo()->GetJac(Elmt->GetPointsKeys());
92  if (Elmt->GetMetricInfo()->GetGtype() == SpatialDomains::eRegular)
93  {
94  Vmath::Fill(nquad, Jac[0], phys, 1);
95  }
96  else
97  {
98  Vmath::Vcopy(nquad, Jac, 1, phys, 1);
99  }
100 
101  if (Elmt->GetMetricInfo()->GetGtype() == SpatialDomains::eDeformed)
102  {
103  NekDouble jacmax = Vmath::Vmax(nquad, Jac, 1);
104  NekDouble jacmin = Vmath::Vmin(nquad, Jac, 1);
105 
106  NekDouble jacmeasure = jacmax / jacmin - 1.0;
107  Vmath::Fill(nquad, jacmeasure, phys, 1);
108  }
109  else
110  {
111  Vmath::Fill(nquad, 0.0, phys, 1);
112  }
113 
114  Elmt->FwdTrans(phys, tmp = coeffs + coeffoffset);
115  }
116 
117  std::vector<LibUtilities::FieldDefinitionsSharedPtr> FieldDef =
118  m_f->m_exp[0]->GetFieldDefinitions();
119  std::vector<std::vector<NekDouble> > FieldData(FieldDef.size());
120 
121  for (int i = 0; i < FieldDef.size(); ++i)
122  {
123  FieldDef[i]->m_fields.push_back("JacobianEnergy");
124  m_f->m_exp[0]->AppendFieldData(FieldDef[i], FieldData[i]);
125  }
126 
127  m_f->m_fielddef = FieldDef;
128  m_f->m_data = FieldData;
129 }
130 }
131 }
virtual void Process(po::variables_map &vm)
Write mesh to output file.
map< string, ConfigOption > m_config
List of configuration values.
Represents a command-line configuration option.
T Vmax(int n, const T *x, const int incx)
Return the maximum element in x – called vmax to avoid conflict with max.
Definition: Vmath.cpp:779
T Vmin(int n, const T *x, const int incx)
Return the minimum element in x - called vmin to avoid conflict with min.
Definition: Vmath.cpp:871
void Fill(int n, const T alpha, T *x, const int incx)
Fill a vector with a constant value.
Definition: Vmath.cpp:46
STL namespace.
pair< ModuleType, string > ModuleKey
boost::shared_ptr< Field > FieldSharedPtr
Definition: Field.hpp:740
double NekDouble
Geometry is straight-sided with constant geometric factors.
Abstract base class for processing modules.
boost::shared_ptr< StdExpansion > StdExpansionSharedPtr
void Vcopy(int n, const T *x, const int incx, T *y, const int incy)
Definition: Vmath.cpp:1061
Geometry is curved or has non-constant factors.
ModuleFactory & GetModuleFactory()
FieldSharedPtr m_f
Field object.
tKey RegisterCreatorFunction(tKey idKey, CreatorFunction classCreator, tDescription pDesc="")
Register a class with the factory.
Definition: NekFactory.hpp:215