vector/test_07.cpp

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#include "ROL_StdVector.hpp"
#include "ROL_RieszVector.hpp"
#include "ROL_RandomVector.hpp"

#include "ROL_DiagonalOperator.hpp"

#include "Teuchos_oblackholestream.hpp"
#include "Teuchos_GlobalMPISession.hpp"

typedef double RealT;

int main(int argc, char *argv[]) {

  using Teuchos::RCP; using Teuchos::rcp;

  typedef std::vector<RealT>    vector;
  typedef ROL::Vector<RealT>    V;
  typedef ROL::StdVector<RealT> SV;
  
  typedef ROL::LinearOperator<RealT>     LinearOperator;
  typedef ROL::DiagonalOperator<RealT>   DiagonalOperator;  

  typedef ROL::RieszPrimalVector<RealT>  PrimalVector;
  typedef ROL::RieszDualVector<RealT>    DualVector;

  
  Teuchos::GlobalMPISession mpiSession(&argc, &argv,0);

  int iprint = argc - 1;
  Teuchos::oblackholestream bhs; // outputs nothing
  std::ostream& outStream = (iprint > 0) ? std::cout : bhs;

  int errorFlag = 0;

  RealT errtol = ROL::ROL_THRESHOLD<RealT>();

  try {
    // Dimension of the optimization vector

    int dim = 10; 

    // Create Tpetra::MultiVectors (single vectors) 
    RCP<vector> x_rcp = rcp( new vector(dim) );
    RCP<vector> y_rcp = rcp( new vector(dim) );
    RCP<vector> w_rcp = rcp( new vector(dim,2.0) );

    RCP<V> xs = rcp( new SV( x_rcp ) );
    RCP<V> ys = rcp( new SV( y_rcp ) );
    
    SV ws( w_rcp );

    ROL::RandomizeVector(*xs);
    ROL::RandomizeVector(*ys);

    RCP<LinearOperator> W = rcp( new DiagonalOperator(ws) );
 
    PrimalVector x(xs,W);
    DualVector   y(ys,W);    

    RealT xy = x.dot(y.dual());
    RealT yx = y.dot(x.dual());

    outStream << "\nAbsolute error between x.dot(y.dual()) and y.dot(x.dual()): "
              << std::abs(xy-yx) << "\n";
    outStream << "x.dot(y.dual()): " << xy << "\n";
    outStream << "y.dot(x.dual()): " << yx << "\n";
    if ( std::abs(xy-yx) > errtol ) {
      outStream << "---> POSSIBLE ERROR ABOVE!\n";
      errorFlag++;
    }

    RealT xx = std::sqrt(x.dot(x)), xnorm = x.norm();
    RealT yy = std::sqrt(y.dot(y)), ynorm = y.norm();

    outStream << "\nAbsolute error between sqrt(x.dot(x)) and x.norm(): "
              << std::abs(xx-xnorm) << "\n";
    outStream << "sqrt(x.dot(x)): " << xx << "\n";
    outStream << "x.norm():       " << xnorm << "\n";
    if ( std::abs(xx-xnorm) > errtol ) {
      outStream << "---> POSSIBLE ERROR ABOVE!\n";
      errorFlag++;
    }

    outStream << "\nAbsolute error between sqrt(y.dot(y)) and y.norm(): "
              << std::abs(yy-ynorm) << "\n";
    outStream << "sqrt(y.dot(y)): " << yy << "\n";
    outStream << "y.norm():       " << ynorm << "\n";
    if ( std::abs(yy-ynorm) > errtol ) {
      outStream << "---> POSSIBLE ERROR ABOVE!\n";
      errorFlag++;
    }

    // clone z from x, deep copy x into z, norm of z
    Teuchos::RCP<ROL::Vector<RealT> > z = x.clone();
    z->set(x);
    RealT znorm = z->norm();
    outStream << "\nNorm of ROL::Vector z (clone of x): " << znorm << "\n";
    if ( std::abs(xnorm - znorm) > errtol ) {
      outStream << "---> POSSIBLE ERROR ABOVE!\n";
      errorFlag++;
    }
    Teuchos::RCP<ROL::Vector<RealT> > w = y.clone();
    w = y.clone();
    w->set(y);
    RealT wnorm = w->norm();
    outStream << "\nNorm of ROL::Vector w (clone of y): " << wnorm << "\n";
    if ( std::abs(ynorm - wnorm) > errtol ) {
      outStream << "---> POSSIBLE ERROR ABOVE!\n";
      errorFlag++;
    }

    // Standard tests.
    RCP<vector> x1_rcp = rcp( new vector(dim) );
    RCP<vector> y1_rcp = rcp( new vector(dim) );
    RCP<vector> z1_rcp = rcp( new vector(dim) );

    RCP<V> x1s = rcp( new SV( x1_rcp ) );
    RCP<V> y1s = rcp( new SV( y1_rcp ) );
    RCP<V> z1s = rcp( new SV( z1_rcp ) );

    ROL::RandomizeVector(*x1s);
    ROL::RandomizeVector(*y1s);
    ROL::RandomizeVector(*z1s);

    // Create ROL vectors
    PrimalVector x1(x1s,W);
    PrimalVector y1(y1s,W);
    PrimalVector z1(z1s,W);

    std::vector<RealT> consistency = x1.checkVector(y1, z1, true, outStream);
    ROL::StdVector<RealT> checkvec(Teuchos::rcp(&consistency, false));
    if (checkvec.norm() > std::sqrt(errtol)) {
      errorFlag++;
    }

  }

  catch (std::logic_error err) {
    outStream << err.what() << "\n";
    errorFlag = -1000;
  }; // end try

  if (errorFlag != 0)
    std::cout << "End Result: TEST FAILED\n";
  else
    std::cout << "End Result: TEST PASSED\n";

  return 0;
}