int
main( int argc, char* argv[] )
{
#ifdef HAVE_MPI
MPI_Init(&argc, &argv);
#endif
{ // needed to properly destroy all objects inside before mpi finalize
#ifdef HAVE_MPI
boost::shared_ptr<Epetra_Comm> Comm(new Epetra_MpiComm(MPI_COMM_WORLD));
ASSERT ( Comm->NumProc() < 2, "The test does not run in parallel." );
#else
boost::shared_ptr<Epetra_Comm> Comm(new Epetra_SerialComm);
#endif
typedef RegionMesh<LinearLine> mesh_Type;
typedef MatrixEpetra<Real> matrix_Type;
typedef VectorEpetra vector_Type;
typedef FESpace<mesh_Type, MapEpetra> feSpace_Type;
typedef boost::shared_ptr<feSpace_Type> feSpacePtr_Type;
const bool verbose(Comm->MyPID()==0);
// Read first the data needed
if (verbose) std::cout << " -- Reading the data ... " << std::flush;
GetPot dataFile( "data" );
if (verbose) std::cout << " done ! " << std::endl;
// Build the mesh
if (verbose) std::cout << " -- Reading the mesh ... " << std::flush;
MeshData meshData(dataFile, "mesh");
boost::shared_ptr< mesh_Type > meshPtr( new mesh_Type( Comm ) );
// Set up the structured mesh
regularMesh1D( *meshPtr, 0,
dataFile( "mesh/n", 20 ),
dataFile( "mesh/verbose", false ),
dataFile( "mesh/length", 1. ),
dataFile( "mesh/origin", 0. ) );
if (verbose) std::cout << " done ! " << std::endl;
// Build the FESpaces
if (verbose) std::cout << " -- Building FESpaces ... " << std::flush;
feSpacePtr_Type uFESpace( new feSpace_Type( meshPtr, feSegP1, quadRuleSeg1pt, quadRuleNode1pt, 1, Comm ) );
if (verbose) std::cout << " done ! " << std::endl;
if (verbose) std::cout << " ---> Dofs: " << uFESpace->dof().numTotalDof() << std::endl;
// Build the assembler and the matrices
if (verbose) std::cout << " -- Building assembler ... " << std::flush;
ADRAssembler<mesh_Type,matrix_Type,vector_Type> adrAssembler;
if (verbose) std::cout << " done! " << std::endl;
if (verbose) std::cout << " -- Setting up assembler ... " << std::flush;
adrAssembler.setFespace(uFESpace);
if (verbose) std::cout << " done! " << std::endl;
if (verbose) std::cout << " -- Defining the matrix ... " << std::flush;
boost::shared_ptr<matrix_Type> systemMatrix(new matrix_Type( uFESpace->map() ));
if (verbose) std::cout << " done! " << std::endl;
// Perform the assembly of the matrix
if (verbose) std::cout << " -- Adding the diffusion ... " << std::flush;
adrAssembler.addDiffusion(systemMatrix, 1.);
if (verbose) std::cout << " done! " << std::endl;
if (verbose) std::cout << " Time needed : " << adrAssembler.diffusionAssemblyChrono().diffCumul() << std::endl;
if (verbose) std::cout << " -- Adding the mass ... " << std::flush;
adrAssembler.addMass(systemMatrix, M_PI * M_PI );
if (verbose) std::cout << " done! " << std::endl;
if (verbose) std::cout << " -- Closing the matrix ... " << std::flush;
systemMatrix->globalAssemble();
if (verbose) std::cout << " done ! " << std::endl;
// Definition and assembly of the RHS
if (verbose) std::cout << " -- Building the RHS ... " << std::flush;
vector_Type rhs(uFESpace->map(),Repeated);
vector_Type fInterpolated(uFESpace->map(),Repeated);
uFESpace->interpolate( static_cast<feSpace_Type::function_Type>( fRhs ), fInterpolated, 0.0 );
adrAssembler.addMassRhs(rhs,fInterpolated);
rhs.globalAssemble();
if (verbose) std::cout << " done ! " << std::endl;
// Definition and application of the BCs
if (verbose) std::cout << " -- Building the BCHandler ... " << std::flush;
BCHandler bchandler;
BCFunctionBase BCu( static_cast<feSpace_Type::function_Type>( exactSolution ) );
bchandler.addBC("Dirichlet", Structured1DLabel::LEFT,Essential,Full,BCu,1);
bchandler.addBC("Dirichlet", Structured1DLabel::RIGHT,Essential,Full,BCu,1);
if (verbose) std::cout << " done ! " << std::endl;
if (verbose) std::cout << " -- Updating the BCs ... " << std::flush;
bchandler.bcUpdate(*uFESpace->mesh(),uFESpace->feBd(),uFESpace->dof());
if (verbose) std::cout << " done ! " << std::endl;
if (verbose) std::cout << " -- Applying the BCs ... " << std::flush;
vector_Type rhsBC(rhs,Unique);
bcManage(*systemMatrix,rhsBC,*uFESpace->mesh(),uFESpace->dof(),bchandler,uFESpace->feBd(),1.0,0.0);
rhs = rhsBC;
if (verbose) std::cout << " done ! " << std::endl;
// Definition of the solver
if (verbose) std::cout << " -- Building the solver ... " << std::flush;
SolverAztecOO linearSolver;
if (verbose) std::cout << " done ! " << std::endl;
if (verbose) std::cout << " -- Setting up the solver ... " << std::flush;
linearSolver.setDataFromGetPot(dataFile,"solver");
linearSolver.setupPreconditioner(dataFile,"prec");
if (verbose) std::cout << " done ! " << std::endl;
if (verbose) std::cout << " -- Setting matrix in the solver ... " << std::flush;
linearSolver.setMatrix(*systemMatrix);
if (verbose) std::cout << " done ! " << std::endl;
linearSolver.setCommunicator(Comm);
// Definition of the solution
if (verbose) std::cout << " -- Defining the solution ... " << std::flush;
vector_Type solution(uFESpace->map(),Unique);
if (verbose) std::cout << " done ! " << std::endl;
// Solve the solution
if (verbose) std::cout << " -- Solving the system ... " << std::flush;
linearSolver.solveSystem(rhsBC,solution,systemMatrix);
if (verbose) std::cout << " done ! " << std::endl;
// Error computation
if (verbose) std::cout << " -- Computing the error ... " << std::flush;
vector_Type solutionErr(solution);
uFESpace->interpolate( static_cast<feSpace_Type::function_Type>( exactSolution ), solutionErr, 0.0 );
solutionErr-=solution;
solutionErr.abs();
Real l2error(uFESpace->l2Error(exactSolution,vector_Type(solution,Repeated),0.0));
if (verbose) std::cout << " -- done ! " << std::endl;
if (verbose) std::cout << " ---> Norm L2 : " << l2error << std::endl;
Real linferror( solutionErr.normInf());
if (verbose) std::cout << " ---> Norm Inf : " << linferror << std::endl;
// Exporter definition and use
if (verbose) std::cout << " -- Defining the exporter ... " << std::flush;
#ifdef HAVE_HDF5
ExporterHDF5<mesh_Type> exporter ( dataFile, "solution" );
#else
ExporterVTK<mesh_Type> exporter ( dataFile, "solution" );
#endif
exporter.setMeshProcId( meshPtr, Comm->MyPID()) ;
if (verbose) std::cout << " done ! " << std::endl;
if (verbose) std::cout << " -- Defining the exported quantities ... " << std::flush;
boost::shared_ptr<vector_Type> solutionPtr (new vector_Type(solution,Repeated));
boost::shared_ptr<vector_Type> solutionErrPtr (new vector_Type(solutionErr,Repeated));
if (verbose) std::cout << " done ! " << std::endl;
if (verbose) std::cout << " -- Updating the exporter ... " << std::flush;
exporter.addVariable( ExporterData<mesh_Type>::ScalarField, "solution", uFESpace, solutionPtr, UInt(0) );
exporter.addVariable( ExporterData<mesh_Type>::ScalarField, "error", uFESpace, solutionErrPtr, UInt(0) );
if (verbose) std::cout << " done ! " << std::endl;
if (verbose) std::cout << " -- Exporting ... " << std::flush;
exporter.postProcess(0);
if (verbose) std::cout << " done ! " << std::endl;
if ( std::fabs( l2error - 0.0006169843149652788l ) > 1e-10 )
{
std::cout << " <!> Solution has changed !!! <!> " << std::endl;
return EXIT_FAILURE;
}
if ( std::fabs( linferror - 0.0001092814405985187l ) > 1e-10 )
{
std::cout << " <!> Solution has changed !!! <!> " << std::endl;
return EXIT_FAILURE;
}
if (verbose) std::cout << "End Result: TEST PASSED" << std::endl;
} // needed to properly destroy all objects inside before mpi finalize
#ifdef HAVE_MPI
MPI_Finalize();
#endif
return( EXIT_SUCCESS );
}
int
main ( int argc, char** argv )
{
#ifdef HAVE_HDF5
#ifdef HAVE_MPI
MPI_Init (&argc, &argv);
boost::shared_ptr<Epetra_Comm> comm (new Epetra_MpiComm (MPI_COMM_WORLD) );
const bool verbose (comm->MyPID() == 0);
// Read first the data needed
if (verbose)
{
std::cout << " -- Reading the data ... " << std::flush;
}
GetPot dataFile ( "data" );
if (verbose)
{
std::cout << " done ! " << std::endl;
}
const UInt Nelements (dataFile ("mesh/nelements", 10) );
if (verbose) std::cout << " ---> Number of elements : "
<< Nelements << std::endl;
// Load mesh part from HDF5
const std::string partsFileName (dataFile ("test/hdf5_file_name", "cube.h5") );
const std::string ioClass (dataFile ("test/io_class", "new") );
boost::shared_ptr<mesh_Type> mesh;
if (! ioClass.compare ("old") )
{
ExporterHDF5Mesh3D<mesh_Type> HDF5Input (dataFile, partsFileName);
HDF5Input.setComm (comm);
mesh = HDF5Input.getMeshPartition();
HDF5Input.closeFile();
}
else
{
PartitionIO<RegionMesh<LinearTetra> > partitionIO (partsFileName, comm);
partitionIO.read (mesh);
}
// Build the FESpaces
if (verbose)
{
std::cout << " -- Building FESpaces ... " << std::flush;
}
std::string uOrder ("P1");
std::string bOrder ("P1");
boost::shared_ptr<FESpace<mesh_Type, MapEpetra> >
uFESpace (new FESpace<mesh_Type, MapEpetra> (mesh, uOrder, 1, comm) );
boost::shared_ptr<FESpace<mesh_Type, MapEpetra> >
betaFESpace (new FESpace<mesh_Type, MapEpetra> (mesh, bOrder, 3, comm) );
if (verbose)
{
std::cout << " done ! " << std::endl;
}
if (verbose) std::cout << " ---> Dofs: "
<< uFESpace->dof().numTotalDof() << std::endl;
// Build the assembler and the matrices
if (verbose)
{
std::cout << " -- Building assembler ... " << std::flush;
}
ADRAssembler<mesh_Type, matrix_Type, vector_Type> adrAssembler;
if (verbose)
{
std::cout << " done! " << std::endl;
}
if (verbose)
{
std::cout << " -- Setting up assembler ... " << std::flush;
}
adrAssembler.setup (uFESpace, betaFESpace);
if (verbose)
{
std::cout << " done! " << std::endl;
}
if (verbose)
{
std::cout << " -- Defining the matrix ... " << std::flush;
}
boost::shared_ptr<matrix_Type>
systemMatrix (new matrix_Type (uFESpace->map() ) );
*systemMatrix *= 0.0;
if (verbose)
{
std::cout << " done! " << std::endl;
}
// Perform the assembly of the matrix
if (verbose)
{
std::cout << " -- Adding the diffusion ... " << std::flush;
}
adrAssembler.addDiffusion (systemMatrix, 1);
if (verbose)
{
std::cout << " done! " << std::endl;
}
if (verbose) std::cout << " Time needed : "
<< adrAssembler.diffusionAssemblyChrono().diffCumul()
<< std::endl;
if (verbose)
{
std::cout << " -- Closing the matrix ... " << std::flush;
}
systemMatrix->globalAssemble();
if (verbose)
{
std::cout << " done ! " << std::endl;
}
Real matrixNorm (systemMatrix->norm1() );
if (verbose)
{
std::cout << " ---> Norm 1 : " << matrixNorm << std::endl;
}
if (std::fabs (matrixNorm - 1.68421) > 1e-3)
{
std::cout << " <!> Matrix has changed !!! <!> " << std::endl;
return EXIT_FAILURE;
}
// Definition and assembly of the RHS
if (verbose)
{
std::cout << " -- Building the RHS ... " << std::flush;
}
vector_Type rhs (uFESpace->map(), Repeated);
rhs *= 0.0;
vector_Type fInterpolated (uFESpace->map(), Repeated);
fInterpolated *= 0.0;
uFESpace->interpolate ( static_cast<function_Type> ( fRhs ), fInterpolated, 0.0);
adrAssembler.addMassRhs (rhs, fInterpolated);
rhs.globalAssemble();
if (verbose)
{
std::cout << " done ! " << std::endl;
}
// Definition and application of the BCs
if (verbose)
{
std::cout << " -- Building the BCHandler ... " << std::flush;
}
BCHandler bchandler;
BCFunctionBase BCu (exactSolution);
bchandler.addBC ("Dirichlet", 1, Essential, Full, BCu, 1);
for (UInt i (2); i <= 6; ++i)
{
bchandler.addBC ("Dirichlet", i, Essential, Full, BCu, 1);
}
if (verbose)
{
std::cout << " done ! " << std::endl;
}
if (verbose)
{
std::cout << " -- Updating the BCs ... " << std::flush;
}
bchandler.bcUpdate (*uFESpace->mesh(), uFESpace->feBd(), uFESpace->dof() );
if (verbose)
{
std::cout << " done ! " << std::endl;
}
if (verbose)
{
std::cout << " -- Applying the BCs ... " << std::flush;
}
vector_Type rhsBC (rhs, Unique);
bcManage (*systemMatrix, rhsBC, *uFESpace->mesh(),
uFESpace->dof(), bchandler, uFESpace->feBd(), 1.0, 0.0);
rhs = rhsBC;
if (verbose)
{
std::cout << " done ! " << std::endl;
}
// Definition of the solver
if (verbose)
{
std::cout << " -- Building the solver ... " << std::flush;
}
SolverAztecOO linearSolver;
if (verbose)
{
std::cout << " done ! " << std::endl;
}
if (verbose)
{
std::cout << " -- Setting up the solver ... " << std::flush;
}
linearSolver.setDataFromGetPot (dataFile, "solver");
linearSolver.setupPreconditioner (dataFile, "prec");
if (verbose)
{
std::cout << " done ! " << std::endl;
}
if (verbose) std::cout << " -- Setting matrix in the solver ... "
<< std::flush;
linearSolver.setMatrix (*systemMatrix);
if (verbose)
{
std::cout << " done ! " << std::endl;
}
linearSolver.setCommunicator (comm);
// Definition of the solution
if (verbose)
{
std::cout << " -- Defining the solution ... " << std::flush;
}
vector_Type solution (uFESpace->map(), Unique);
solution *= 0.0;
if (verbose)
{
std::cout << " done ! " << std::endl;
}
// Solve the solution
if (verbose)
{
std::cout << " -- Solving the system ... " << std::flush;
}
linearSolver.solveSystem (rhsBC, solution, systemMatrix);
if (verbose)
{
std::cout << " done ! " << std::endl;
}
// Error computation
if (verbose)
{
std::cout << " -- Computing the error ... " << std::flush;
}
vector_Type solutionErr (solution);
solutionErr *= 0.0;
uFESpace->interpolate ( static_cast<function_Type> ( exactSolution ), solutionErr, 0.0);
solutionErr -= solution;
solutionErr.abs();
Real l2error (uFESpace->l2Error (exactSolution,
vector_Type (solution, Repeated), 0.0) );
if (verbose)
{
std::cout << " -- done ! " << std::endl;
}
if (verbose)
{
std::cout << " ---> Norm L2 : " << l2error << std::endl;
}
Real linferror (solutionErr.normInf() );
if (verbose)
{
std::cout << " ---> Norm Inf : " << linferror << std::endl;
}
if (l2error > 0.0055)
{
std::cout << " <!> Solution has changed !!! <!> " << std::endl;
return EXIT_FAILURE;
}
if (linferror > 0.0046)
{
std::cout << " <!> Solution has changed !!! <!> " << std::endl;
return EXIT_FAILURE;
}
// Exporter definition and use
if (verbose)
{
std::cout << " -- Defining the exporter ... " << std::flush;
}
ExporterHDF5<mesh_Type> exporter (dataFile, mesh,
"solution", comm->MyPID() ) ;
if (verbose)
{
std::cout << " done ! " << std::endl;
}
if (verbose) std::cout << " -- Defining the exported quantities ... "
<< std::flush;
boost::shared_ptr<vector_Type>
solutionPtr (new vector_Type (solution, Repeated) );
boost::shared_ptr<vector_Type>
solutionErrPtr (new vector_Type (solutionErr, Repeated) );
if (verbose)
{
std::cout << " done ! " << std::endl;
}
if (verbose) std::cout << " -- Updating the exporter ... "
<< std::flush;
exporter.addVariable ( ExporterData<mesh_Type>::ScalarField,
"solution", uFESpace, solutionPtr, UInt (0) );
exporter.addVariable ( ExporterData<mesh_Type>::ScalarField,
"error", uFESpace, solutionErrPtr, UInt (0) );
if (verbose)
{
std::cout << " done ! " << std::endl;
}
if (verbose)
{
std::cout << " -- Exporting ... " << std::flush;
}
exporter.postProcess (0);
exporter.closeFile();
if (verbose)
{
std::cout << " done ! " << std::endl;
}
if (verbose)
{
std::cout << "End Result: TEST PASSED" << std::endl;
}
MPI_Finalize();
#else
std::cout << "This test needs MPI to run. Aborting." << std::endl;
return (EXIT_FAILURE);
#endif /* HAVE_MPI */
#else
std::cout << "This test needs HDF5 to run. Aborting." << std::endl;
return (EXIT_FAILURE);
#endif /* HAVE_HDF5 */
return ( EXIT_SUCCESS );
}