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ShallowWaterSolver.cpp
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1 ///////////////////////////////////////////////////////////////////////////////
2 //
3 // File ShallowWaterSolver.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
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31 //
32 // Description: Shallow Water Equations framework solver
33 //
34 ///////////////////////////////////////////////////////////////////////////////
35 
38 
39 using namespace std;
40 using namespace Nektar;
41 using namespace Nektar::SolverUtils;
42 
43 int main(int argc, char *argv[])
44 {
45  // Create session reader.
47  session = LibUtilities::SessionReader::CreateInstance(argc, argv);
48 
49  time_t starttime, endtime;
50  NekDouble CPUtime;
52 
53  // Record start time.
54  time(&starttime);
55 
56  // Create instance of module to solve the equation specified in the session.
57  try
58  {
60  session->GetSolverInfo("EQTYPE"), session);
61  }
62  catch (int e)
63  {
64  ASSERTL0(e == -1, "No such solver class defined.");
65  }
66 
67  // Print a summary of solver and problem parameters and initialise the
68  // solver.
69  equ->PrintSummary(cout);
70  equ->DoInitialise();
71 
72  // Solve the problem.
73  equ->DoSolve();
74 
75  // Record end time.
76  time(&endtime);
77  CPUtime = (1.0/60.0/60.0)*difftime(endtime,starttime);
78 
79  // Write output to .fld file
80  equ->Output();
81 
82  // Evaluate and output computation time and solution accuracy.
83  // The specific format of the error output is essential for the
84  // regression tests to work.
85  cout << "-------------------------------------------" << endl;
86  cout << "Total Computation Time = " << CPUtime << " hr." << endl;
87 
88 
89  for(int i = 0; i < equ->GetNvariables(); ++i)
90  {
91  cout << "L 2 error (variable " << equ->GetVariable(i) << "): " << equ->L2Error(i,true) << endl;
92  cout << "L inf error (variable " << equ->GetVariable(i) << "): " << equ->LinfError(i) << endl;
93  }
94 
95  session->Finalise();
96 }
#define ASSERTL0(condition, msg)
Definition: ErrorUtil.hpp:198
tBaseSharedPtr CreateInstance(tKey idKey BOOST_PP_COMMA_IF(MAX_PARAM) BOOST_PP_ENUM_BINARY_PARAMS(MAX_PARAM, tParam, x))
Create an instance of the class referred to by idKey.
Definition: NekFactory.hpp:162
STL namespace.
int main(int argc, char *argv[])
boost::shared_ptr< SessionReader > SessionReaderSharedPtr
Definition: MeshPartition.h:51
boost::shared_ptr< EquationSystem > EquationSystemSharedPtr
A shared pointer to an EquationSystem object.
double NekDouble
EquationSystemFactory & GetEquationSystemFactory()