Ejemplo n.º 1
0
void Piro::Epetra::MatrixFreeDecorator::evalModel( const InArgs& inArgs,
                                     const OutArgs& outArgs ) const
{
  using Teuchos::RCP;
  using Teuchos::rcp;

  RCP<Epetra_Operator> W_out = outArgs.get_W();

  if (W_out == Teuchos::null) {
    // Just pass through as is: nothing to Decorate
    model->evalModel(inArgs, outArgs);
  }
  else {

    RCP<Piro::Epetra::MatrixFreeOperator> W_mfo =
      Teuchos::rcp_dynamic_cast<Piro::Epetra::MatrixFreeOperator>(W_out);

    TEUCHOS_TEST_FOR_EXCEPTION(W_mfo==Teuchos::null, std::logic_error, 
      "Epetra_Operator sent as W to Piro::Epetra::MatrixFreeDecorator\n" 
      "be of type Piro::Epetra::MatrixFreeOperator");
   
    // Do base case for MatrixFree: set f instead of W
    OutArgs modelOutArgs(outArgs);
    InArgs modelInArgs(inArgs);

    // Store f_out in case it was also requested
    RCP<Epetra_Vector> f_out = outArgs.get_f();

    modelOutArgs.set_f(fBase);
    modelOutArgs.set_W(Teuchos::null);

    //Evaluate the underlying model
    model->evalModel(modelInArgs, modelOutArgs);

    // If f_out was requested, return it.
    if (f_out != Teuchos::null) *f_out = *fBase;

    // Save unperturbed solution (deep copy inArgs, shallow f)
    InArgs clonedInArgs = inArgs;
    for (int l = 0; l < inArgs.Np(); ++l) {
      const RCP<const Epetra_Vector> p_l = inArgs.get_p(l);
      if (nonnull(p_l))
        clonedInArgs.set_p(l, Teuchos::rcp(new Epetra_Vector(*p_l)));
    }
    clonedInArgs.set_x(Teuchos::rcp(new Epetra_Vector(*inArgs.get_x())));

    bool haveXdot = false;
    if (inArgs.supports(IN_ARG_x_dot)) {
      RCP<const Epetra_Vector> xdot = inArgs.get_x_dot();
      if (nonnull(xdot)) {
        clonedInArgs.set_x_dot(Teuchos::rcp(new Epetra_Vector(*inArgs.get_x_dot())));
        haveXdot = true;
      }
    }
    W_mfo->setBase(clonedInArgs, fBase, haveXdot);
  }
}
void 
Stokhos::SGQuadModelEvaluator::
evalModel(const InArgs& inArgs, const OutArgs& outArgs) const
{
  // Create underlying inargs
  InArgs me_inargs = me->createInArgs();
  if (me_inargs.supports(IN_ARG_x))
    me_inargs.set_x(inArgs.get_x());
  if (me_inargs.supports(IN_ARG_x_dot))
    me_inargs.set_x_dot(inArgs.get_x_dot());
  if (me_inargs.supports(IN_ARG_alpha))
    me_inargs.set_alpha(inArgs.get_alpha());
  if (me_inargs.supports(IN_ARG_beta))
    me_inargs.set_beta(inArgs.get_beta());
  if (me_inargs.supports(IN_ARG_t))
    me_inargs.set_t(inArgs.get_t());
  for (int i=0; i<num_p; i++)
    me_inargs.set_p(i, inArgs.get_p(i));

  // Create underlying outargs
  OutArgs me_outargs = me->createOutArgs();
  if (me_outargs.supports(OUT_ARG_f))
    me_outargs.set_f(outArgs.get_f());
  if (me_outargs.supports(OUT_ARG_W))
    me_outargs.set_W(outArgs.get_W());
  for (int j=0; j<num_p; j++)
    if (!outArgs.supports(OUT_ARG_DfDp, j).none())
      me_outargs.set_DfDp(j, outArgs.get_DfDp(j));
  for (int i=0; i<num_g; i++) {
    me_outargs.set_g(i, outArgs.get_g(i));
    if (!outArgs.supports(OUT_ARG_DgDx, i).none())
	me_outargs.set_DgDx(i, outArgs.get_DgDx(i));
    if (!outArgs.supports(OUT_ARG_DgDx_dot, i).none())
	me_outargs.set_DgDx(i, outArgs.get_DgDx_dot(i));
    for (int j=0; j<num_p; j++)
      if (!outArgs.supports(OUT_ARG_DgDp, i, j).none())
	me_outargs.set_DgDp(i, j, outArgs.get_DgDp(i,j));
  }

  bool do_quad = false;
  InArgs::sg_const_vector_t x_sg;
  InArgs::sg_const_vector_t x_dot_sg;
  Teuchos::Array<InArgs::sg_const_vector_t> p_sg(num_p);
  OutArgs::sg_vector_t f_sg;
  OutArgs::sg_operator_t W_sg;
  Teuchos::Array<SGDerivative> dfdp_sg(num_p);
  Teuchos::Array<OutArgs::sg_vector_t> g_sg(num_g);
  Teuchos::Array<SGDerivative> dgdx_sg(num_g);
  Teuchos::Array<SGDerivative> dgdx_dot_sg(num_g);
  Teuchos::Array< Teuchos::Array<SGDerivative> > dgdp_sg(num_g);
  TEUCHOS_TEST_FOR_EXCEPTION(inArgs.get_sg_basis() == Teuchos::null, 
		     std::logic_error,
		     "Error!  Stokhos::SGQuadModelEvaluator::evalModel():  " <<
		     "SG basis inArg cannot be null!");
  TEUCHOS_TEST_FOR_EXCEPTION(inArgs.get_sg_quadrature() == Teuchos::null, 
		     std::logic_error,
		     "Error!  Stokhos::SGQuadModelEvaluator::evalModel():  " <<
		     "SG quadrature inArg cannot be null!");
  Teuchos::RCP<const Stokhos::OrthogPolyBasis<int,double> > basis = 
    inArgs.get_sg_basis();
  Teuchos::RCP< const Stokhos::Quadrature<int,double> > quad = 
    inArgs.get_sg_quadrature();
  if (inArgs.supports(IN_ARG_x_sg)) {
    x_sg = inArgs.get_x_sg();
    if (x_sg != Teuchos::null) {
      do_quad = true;
    }
  }
  if (inArgs.supports(IN_ARG_x_dot_sg)) {
    x_dot_sg = inArgs.get_x_dot_sg();
    if (x_dot_sg != Teuchos::null) {
      do_quad = true;
    }
  }
  for (int i=0; i<num_p; i++) {
    p_sg[i] = inArgs.get_p_sg(i);
    if (p_sg[i] != Teuchos::null) {
      do_quad = true;
    }
  }
  if (outArgs.supports(OUT_ARG_f_sg)) {
    f_sg = outArgs.get_f_sg();
    if (f_sg != Teuchos::null)
      f_sg->init(0.0);
  }
  if (outArgs.supports(OUT_ARG_W_sg)) {
    W_sg = outArgs.get_W_sg();
    if (W_sg != Teuchos::null)
      W_sg->init(0.0);
  }
  for (int i=0; i<num_p; i++) {
    if (!outArgs.supports(OUT_ARG_DfDp_sg, i).none()) {
      dfdp_sg[i] = outArgs.get_DfDp_sg(i);
      if (dfdp_sg[i].getMultiVector() != Teuchos::null)
	dfdp_sg[i].getMultiVector()->init(0.0);
      else if (dfdp_sg[i].getLinearOp() != Teuchos::null)
	dfdp_sg[i].getLinearOp()->init(0.0);
    }
  }
      
  for (int i=0; i<num_g; i++) {
    g_sg[i] = outArgs.get_g_sg(i);
    if (g_sg[i] != Teuchos::null)
      g_sg[i]->init(0.0);
    
    if (!outArgs.supports(OUT_ARG_DgDx_sg, i).none()) {
      dgdx_sg[i] = outArgs.get_DgDx_sg(i);
      if (dgdx_sg[i].getMultiVector() != Teuchos::null)
	dgdx_sg[i].getMultiVector()->init(0.0);
      else if (dgdx_sg[i].getLinearOp() != Teuchos::null)
	dgdx_sg[i].getLinearOp()->init(0.0);
    }

    if (!outArgs.supports(OUT_ARG_DgDx_dot_sg, i).none()) {
      dgdx_dot_sg[i] = outArgs.get_DgDx_dot_sg(i);
      if (dgdx_dot_sg[i].getMultiVector() != Teuchos::null)
	dgdx_dot_sg[i].getMultiVector()->init(0.0);
      else if (dgdx_dot_sg[i].getLinearOp() != Teuchos::null)
	dgdx_dot_sg[i].getLinearOp()->init(0.0);
    }

    dgdp_sg[i].resize(num_p);
    for (int j=0; j<num_p; j++) {
      if (!outArgs.supports(OUT_ARG_DgDp_sg, i, j).none()) {
	dgdp_sg[i][j] = outArgs.get_DgDp_sg(i,j);
	if (dgdp_sg[i][j].getMultiVector() != Teuchos::null)
	  dgdp_sg[i][j].getMultiVector()->init(0.0);
	else if (dgdp_sg[i][j].getLinearOp() != Teuchos::null)
	  dgdp_sg[i][j].getLinearOp()->init(0.0);
      }
    }
  }

  if (do_quad) {
    // Get quadrature data
    const Teuchos::Array< Teuchos::Array<double> >& quad_points = 
      quad->getQuadPoints();
    const Teuchos::Array<double>& quad_weights = 
      quad->getQuadWeights();
    const Teuchos::Array< Teuchos::Array<double> > & quad_values = 
      quad->getBasisAtQuadPoints();
    const Teuchos::Array<double>& basis_norms = basis->norm_squared();

    // Perform integrations
    for (int qp=0; qp<quad_points.size(); qp++) {

      // StieltjesPCEBasis can introduce quadrature points with zero weight
      // Don't do those evaluations, since the model might not like the
      // quadrature points (i.e., zero)
      if (quad_weights[qp] == 0.0)
	continue;

      {
#ifdef STOKHOS_TEUCHOS_TIME_MONITOR
        TEUCHOS_FUNC_TIME_MONITOR_DIFF("Stokhos: SGQuadModelEvaluator -- Polynomial Evaluation",
          PolyEvaluation);
#endif

        // Evaluate inputs at quadrature points
        if (x_sg != Teuchos::null) {
#ifdef STOKHOS_TEUCHOS_TIME_MONITOR
          TEUCHOS_FUNC_TIME_MONITOR("Stokhos: SGQuadModelEvaluator -- X Evaluation");
#endif
          x_sg->evaluate(quad_values[qp], *x_qp);
          me_inargs.set_x(x_qp);
        }
        if (x_dot_sg != Teuchos::null) {
#ifdef STOKHOS_TEUCHOS_TIME_MONITOR
          TEUCHOS_FUNC_TIME_MONITOR("Stokhos: SGQuadModelEvaluator -- X_dot Evaluation");
#endif
          x_dot_sg->evaluate(quad_values[qp], *x_dot_qp);
          me_inargs.set_x_dot(x_qp);
        }
        for (int i=0; i<num_p; i++) {
          if (p_sg[i] != Teuchos::null) {
#ifdef STOKHOS_TEUCHOS_TIME_MONITOR
            TEUCHOS_FUNC_TIME_MONITOR("Stokhos: SGQuadModelEvaluator -- P Evaluation");
#endif
            p_sg[i]->evaluate(quad_values[qp], *(p_qp[i]));
            me_inargs.set_p(i, p_qp[i]);
          }
        }
        if (f_sg != Teuchos::null)
          me_outargs.set_f(f_qp);
        if (W_sg != Teuchos::null)
          me_outargs.set_W(W_qp);
	for (int i=0; i<num_p; i++) {
	  if (!dfdp_sg[i].isEmpty())
	    me_outargs.set_DfDp(i, dfdp_qp[i]);
	}
        for (int i=0; i<num_g; i++) {
	  if (g_sg[i] != Teuchos::null)
	    me_outargs.set_g(i, g_qp[i]);
	  if (!dgdx_dot_sg[i].isEmpty())
	    me_outargs.set_DgDx_dot(i, dgdx_dot_qp[i]);
	  if (!dgdx_sg[i].isEmpty())
	    me_outargs.set_DgDx(i, dgdx_qp[i]);
          for (int j=0; j<num_p; j++)
            if (!dgdp_sg[i][j].isEmpty())
              me_outargs.set_DgDp(i, j, dgdp_qp[i][j]);
        }

      }

      {
#ifdef STOKHOS_TEUCHOS_TIME_MONITOR
        TEUCHOS_FUNC_TIME_MONITOR("Stokhos: SGQuadModelEvaluator -- Model Evaluation");
#endif

        // Evaluate model at quadrature points
        me->evalModel(me_inargs, me_outargs);

      }

      {
#ifdef STOKHOS_TEUCHOS_TIME_MONITOR
        TEUCHOS_FUNC_TIME_MONITOR_DIFF(
	  "Stokhos: SGQuadModelEvaluator -- Polynomial Integration", Integration);
#endif

        // Sum in results
        if (f_sg != Teuchos::null) {
#ifdef STOKHOS_TEUCHOS_TIME_MONITOR
          TEUCHOS_FUNC_TIME_MONITOR("Stokhos: SGQuadModelEvaluator -- F Integration");
#endif
          f_sg->sumIntoAllTerms(quad_weights[qp], quad_values[qp], basis_norms,
				*f_qp);
        }
        if (W_sg != Teuchos::null) {
#ifdef STOKHOS_TEUCHOS_TIME_MONITOR
          TEUCHOS_FUNC_TIME_MONITOR("Stokhos: SGQuadModelEvaluator -- W Integration");
#endif
          W_sg->sumIntoAllTerms(quad_weights[qp], quad_values[qp], basis_norms,
				*W_qp);
        }
	for (int j=0; j<num_p; j++) {
	  if (!dfdp_sg[j].isEmpty()) {
#ifdef STOKHOS_TEUCHOS_TIME_MONITOR
	    TEUCHOS_FUNC_TIME_MONITOR(
	      "Stokhos: SGQuadModelEvaluator -- df/dp Integration");
#endif
	    if (dfdp_sg[j].getMultiVector() != Teuchos::null) {
	      dfdp_sg[j].getMultiVector()->sumIntoAllTerms(
		quad_weights[qp], quad_values[qp], basis_norms, 
		*(dfdp_qp[j].getMultiVector()));
	    }
	    else if (dfdp_sg[j].getLinearOp() != Teuchos::null) {
	      dfdp_sg[j].getLinearOp()->sumIntoAllTerms(
		quad_weights[qp], quad_values[qp], basis_norms, 
		*(dfdp_qp[j].getLinearOp()));
	    }
	  }
	}
        for (int i=0; i<num_g; i++) {
          if (g_sg[i] != Teuchos::null) {
#ifdef STOKHOS_TEUCHOS_TIME_MONITOR
            TEUCHOS_FUNC_TIME_MONITOR("Stokhos: SGQuadModelEvaluator -- G Integration");
#endif
            g_sg[i]->sumIntoAllTerms(quad_weights[qp], quad_values[qp], 
				     basis_norms, *g_qp[i]);
          }
	  if (!dgdx_dot_sg[i].isEmpty()) {
#ifdef STOKHOS_TEUCHOS_TIME_MONITOR
	    TEUCHOS_FUNC_TIME_MONITOR(
	      "Stokhos: SGQuadModelEvaluator -- dg/dx_dot Integration");
#endif
	    if (dgdx_dot_sg[i].getMultiVector() != Teuchos::null) {
	      dgdx_dot_sg[i].getMultiVector()->sumIntoAllTerms(
		quad_weights[qp], quad_values[qp], basis_norms, 
		*(dgdx_dot_qp[i].getMultiVector()));
	    }
	    else if (dgdx_dot_sg[i].getLinearOp() != Teuchos::null) {
	      dgdx_dot_sg[i].getLinearOp()->sumIntoAllTerms(
		quad_weights[qp], quad_values[qp], basis_norms, 
		*(dgdx_dot_qp[i].getLinearOp()));
	    }
	  }
	  if (!dgdx_sg[i].isEmpty()) {
#ifdef STOKHOS_TEUCHOS_TIME_MONITOR
	    TEUCHOS_FUNC_TIME_MONITOR(
	      "Stokhos: SGQuadModelEvaluator -- dg/dx Integration");
#endif
	    if (dgdx_sg[i].getMultiVector() != Teuchos::null) {
	      dgdx_sg[i].getMultiVector()->sumIntoAllTerms(
		quad_weights[qp], quad_values[qp], basis_norms, 
		*(dgdx_qp[i].getMultiVector()));
	    }
	    else if (dgdx_sg[i].getLinearOp() != Teuchos::null) {
	      dgdx_sg[i].getLinearOp()->sumIntoAllTerms(
		quad_weights[qp], quad_values[qp], basis_norms, 
		*(dgdx_qp[i].getLinearOp()));
	    }
	  }
          for (int j=0; j<num_p; j++) {
	    if (!dgdp_sg[i][j].isEmpty()) {
#ifdef STOKHOS_TEUCHOS_TIME_MONITOR
	      TEUCHOS_FUNC_TIME_MONITOR(
		"Stokhos: SGQuadModelEvaluator -- dg/dp Integration");
#endif
	      if (dgdp_sg[i][j].getMultiVector() != Teuchos::null) {
		dgdp_sg[i][j].getMultiVector()->sumIntoAllTerms(
		  quad_weights[qp], quad_values[qp], basis_norms, 
		  *(dgdp_qp[i][j].getMultiVector()));
	      }
	      else if (dgdp_sg[i][j].getLinearOp() != Teuchos::null) {
		dgdp_sg[i][j].getLinearOp()->sumIntoAllTerms(
		  quad_weights[qp], quad_values[qp], basis_norms, 
		  *(dgdp_qp[i][j].getLinearOp()));
	      }
	    }
          }
        }

      }
    }
  }
  else {
    // Compute the non-SG functions
    me->evalModel(me_inargs, me_outargs);
  }
}