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DriverStandard.cpp
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1 ///////////////////////////////////////////////////////////////////////////////
2 //
3 // File DriverStandard.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
14 // Permission is hereby granted, free of charge, to any person obtaining a
15 // copy of this software and associated documentation files (the "Software"),
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31 //
32 // Description: Incompressible Navier Stokes solver
33 //
34 ///////////////////////////////////////////////////////////////////////////////
35 
36 #include <iomanip>
37 
39 
40 using namespace std;
41 
42 namespace Nektar
43 {
44  namespace SolverUtils
45  {
46  string DriverStandard::className = GetDriverFactory().RegisterCreatorFunction("Standard", DriverStandard::create);
47  string DriverStandard::driverLookupId = LibUtilities::SessionReader::RegisterEnumValue("Driver","Standard",0);
48 
49  /**
50  *
51  */
52  DriverStandard::DriverStandard(const LibUtilities::SessionReaderSharedPtr pSession)
53  : Driver(pSession)
54  {
55  }
56 
57 
58  /**
59  *
60  */
62  {
63  }
64 
65 
66  /**
67  *
68  */
69  void DriverStandard::v_InitObject(ostream &out)
70  {
72  }
73 
74 
75  void DriverStandard::v_Execute(ostream &out)
76 
77  {
78  time_t starttime, endtime;
79  NekDouble CPUtime;
80 
81  m_equ[0]->PrintSummary(out);
82 
83  time(&starttime);
84 
85  m_equ[0]->DoInitialise();
86  m_equ[0]->DoSolve();
87 
88  time(&endtime);
89 
90  m_equ[0]->Output();
91 
92  if (m_comm->GetRank() == 0)
93  {
94  CPUtime = difftime(endtime, starttime);
95  cout << "-------------------------------------------" << endl;
96  cout << "Total Computation Time = " << CPUtime << "s" << endl;
97  cout << "-------------------------------------------" << endl;
98  }
99 
100  // Evaluate and output computation time and solution accuracy.
101  // The specific format of the error output is essential for the
102  // regression tests to work.
103  // Evaluate L2 Error
104  for(int i = 0; i < m_equ[0]->GetNvariables(); ++i)
105  {
106  Array<OneD, NekDouble> exactsoln(m_equ[0]->GetTotPoints(), 0.0);
107 
108  // Evaluate "ExactSolution" function, or zero array
109  m_equ[0]->EvaluateExactSolution(i, exactsoln,
110  m_equ[0]->GetFinalTime());
111 
112  NekDouble vL2Error = m_equ[0]->L2Error (i, exactsoln);
113  NekDouble vLinfError = m_equ[0]->LinfError(i, exactsoln);
114 
115  if (m_comm->GetRank() == 0)
116  {
117  out << "L 2 error (variable " << m_equ[0]->GetVariable(i)
118  << ") : " << vL2Error << endl;
119  out << "L inf error (variable " << m_equ[0]->GetVariable(i)
120  << ") : " << vLinfError << endl;
121  }
122  }
123  }
124  }
125 }
126 
STL namespace.
boost::shared_ptr< SessionReader > SessionReaderSharedPtr
Definition: MeshPartition.h:51
virtual SOLVER_UTILS_EXPORT void v_InitObject(std::ostream &out=std::cout)
Second-stage initialisation.
virtual SOLVER_UTILS_EXPORT void v_InitObject(std::ostream &out=std::cout)
Definition: Driver.cpp:92
virtual SOLVER_UTILS_EXPORT void v_Execute(std::ostream &out=std::cout)
Virtual function for solve implementation.
double NekDouble
virtual SOLVER_UTILS_EXPORT ~DriverStandard()
Destructor.
Array< OneD, EquationSystemSharedPtr > m_equ
Equation system to solve.
Definition: Driver.h:94
DriverFactory & GetDriverFactory()
Definition: Driver.cpp:66
LibUtilities::CommSharedPtr m_comm
Communication object.
Definition: Driver.h:85
Base class for the development of solvers.
Definition: Driver.h:65
tKey RegisterCreatorFunction(tKey idKey, CreatorFunction classCreator, tDescription pDesc="")
Register a class with the factory.
Definition: NekFactory.hpp:215