test_01.cpp

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#include "Intrepid_FieldContainer.hpp"
#include "Teuchos_oblackholestream.hpp"
#include "Teuchos_RCP.hpp"
#include "Teuchos_GlobalMPISession.hpp"
#include "Intrepid_PointTools.hpp"
#include "Intrepid_HGRAD_TRI_Cn_FEM.hpp"
#include "Shards_CellTopology.hpp"

#include <iostream>
using namespace Intrepid;

int main(int argc, char *argv[]) {
  Teuchos::GlobalMPISession mpiSession(&argc, &argv);
  
  // This little trick lets us print to std::cout only if a (dummy) command-line argument is provided.
  int iprint     = argc - 1;
  
  Teuchos::RCP<std::ostream> outStream;
  Teuchos::oblackholestream bhs; // outputs nothing
  
  if (iprint > 0)
    outStream = Teuchos::rcp(&std::cout, false);
  else
    outStream = Teuchos::rcp(&bhs, false);

  // Save the format state of the original std::cout.
  Teuchos::oblackholestream oldFormatState;
  oldFormatState.copyfmt(std::cout);

  *outStream \
    << "===============================================================================\n" \
    << "|                                                                             |\n" \
    << "|                           Unit Test HGRAD_TRI_Cn_FEM                        |\n" \
    << "|                                                                             |\n" \
    << "|     1) Tests triangular Lagrange basis                                      |\n" \
    << "|                                                                             |\n" \
    << "|  Questions? Contact  Pavel Bochev (pbboche@sandia.gov) or                   |\n" \
    << "|                      Denis Ridzal (dridzal@sandia.gov) or                   |\n" \
    << "|                      Robert Kirby (robert.c.kirby@ttu.edu)                  |\n" \
    << "|                                                                             |\n" \
    << "|  Intrepid's website: http://trilinos.sandia.gov/packages/intrepid           |\n" \
    << "|  Trilinos website:   http://trilinos.sandia.gov                             |\n" \
    << "|                                                                             |\n" \
    << "===============================================================================\n";
  
  int errorFlag  = 0;

  // Let's instantiate a basis
  try {
    const int deg = 10;

    Basis_HGRAD_TRI_Cn_FEM<double,FieldContainer<double> >  myBasis( deg , POINTTYPE_WARPBLEND );

    // Get a lattice
    const int np_lattice = PointTools::getLatticeSize( myBasis.getBaseCellTopology() , deg , 0 );

    const int nbf = myBasis.getCardinality();

    FieldContainer<double> lattice( np_lattice , 2 );

    PointTools::getLattice<double,FieldContainer<double> >( lattice , 
                                                            myBasis.getBaseCellTopology() , 
                                                            deg , 
                                                            0 , 
                                                            POINTTYPE_WARPBLEND );         
    FieldContainer<double> vals( nbf , np_lattice );

    myBasis.getValues( vals , lattice , OPERATOR_VALUE );

    // test for Kronecker property
    for (int i=0;i<nbf;i++) {
      for (int j=0;j<np_lattice;j++) {
        if ( i==j && std::abs( vals(i,j) - 1.0 ) > INTREPID_TOL ) {
          errorFlag++;
          *outStream << std::setw(70) << "^^^^----FAILURE!" << "\n";
          *outStream << " Basis function " << i << " does not have unit value at its node\n";
        }
        if ( i!=j && std::abs( vals(i,j) ) > INTREPID_TOL ) {
          errorFlag++;
          *outStream << std::setw(70) << "^^^^----FAILURE!" << "\n";
          *outStream << " Basis function " << i << " does not vanish at node " << j << "\n";
        }
      }
    }
  }
  catch (const std::exception & err) {
    *outStream << err.what() << "\n\n";
    errorFlag = -1000;
  }

  try {
    const int deg = 3;

    Basis_HGRAD_TRI_Cn_FEM<double,FieldContainer<double> >  myBasis( deg , POINTTYPE_WARPBLEND );
    const std::vector<std::vector<std::vector<int> > >& dofdata = myBasis.getDofOrdinalData();
    for (unsigned d=0;d<dofdata.size();d++) {
      std::cout << "Dimension " << d << "\n";
      for (unsigned f=0;f<dofdata[d].size();f++) {
        std::cout << "\tFacet number " << f << "\n";
        std::cout << "\t\tDOFS:\n";
        for (unsigned n=0;n<dofdata[d][f].size();n++) {
          std::cout << "\t\t\t" << dofdata[d][f][n] << "\n";
        }
      }
    }
  }
  catch (const std::exception & err) {
    *outStream << err.what() << "\n\n";
    errorFlag = -1000;
  }

  try {

    const int deg = 1;
    Basis_HGRAD_TRI_Cn_FEM<double,FieldContainer<double> >  myBasis( deg , POINTTYPE_WARPBLEND );

    // Get a lattice
    const int np_lattice = PointTools::getLatticeSize( myBasis.getBaseCellTopology() , deg , 0 );

    const int nbf = myBasis.getCardinality();

    FieldContainer<double> lattice( np_lattice , 2 );

    PointTools::getLattice<double,FieldContainer<double> >( lattice , 
                                                            myBasis.getBaseCellTopology() , 
                                                            deg , 
                                                            0 , 
                                                            POINTTYPE_WARPBLEND );     
                                                            
    FieldContainer<double> vals( nbf , np_lattice , 2 );

    myBasis.getValues( vals , lattice , OPERATOR_CURL );

    std::cout << vals << std::endl;
  }
  catch (const std::exception & err) {
    *outStream << err.what() << "\n\n";
    errorFlag = -1000;
  }
  

  if (errorFlag != 0)
    std::cout << "End Result: TEST FAILED\n";
  else
    std::cout << "End Result: TEST PASSED\n";
  
  // reset format state of std::cout
  std::cout.copyfmt(oldFormatState);
  
  return errorFlag;
}