/usr/include/trilinos/Stokhos_ExpansionFactoryImp.hpp is in libtrilinos-stokhos-dev 12.12.1-5.
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// $Source$
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// Stokhos Package
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#include "Teuchos_Assert.hpp"
#include "Stokhos_BasisFactory.hpp"
#include "Stokhos_QuadratureFactory.hpp"
#include "Stokhos_AlgebraicOrthogPolyExpansion.hpp"
#include "Stokhos_QuadOrthogPolyExpansion.hpp"
#include "Stokhos_ForUQTKOrthogPolyExpansion.hpp"
//#include "Stokhos_DerivOrthogPolyExpansion.hpp"
#include "Stokhos_CompletePolynomialBasis.hpp"
#include "Stokhos_PseudoSpectralOrthogPolyExpansion.hpp"
#include "Stokhos_PseudoSpectralOperatorFactory.hpp"
template <typename ordinal_type, typename value_type>
Teuchos::RCP<Stokhos::OrthogPolyExpansion<ordinal_type, value_type> >
Stokhos::ExpansionFactory<ordinal_type, value_type>::
create(Teuchos::ParameterList& sgParams)
{
// Check if expansion is already there
Teuchos::ParameterList& expParams = sgParams.sublist("Expansion");
Teuchos::RCP< Stokhos::OrthogPolyExpansion<ordinal_type,value_type> > expansion = expParams.template get< Teuchos::RCP< Stokhos::OrthogPolyExpansion<ordinal_type,value_type> > >("Stochastic Galerkin Expansion", Teuchos::null);
if (expansion != Teuchos::null)
return expansion;
// Get basis
Teuchos::ParameterList& basisParams = sgParams.sublist("Basis");
Teuchos::RCP< const Stokhos::OrthogPolyBasis<ordinal_type,value_type> > basis;
if (basisParams.template isType< Teuchos::RCP< const Stokhos::OrthogPolyBasis<ordinal_type,value_type> > >("Stochastic Galerkin Basis"))
basis = basisParams.template get< Teuchos::RCP<const Stokhos::OrthogPolyBasis<ordinal_type,value_type> > >("Stochastic Galerkin Basis");
else {
basis = Stokhos::BasisFactory<ordinal_type,value_type>::create(sgParams);
basisParams.set("Stochastic Galerkin Basis", basis);
}
// Get 3-tensor
Teuchos::RCP<const Stokhos::Sparse3Tensor<ordinal_type,value_type> > Cijk;
if (sgParams.template isType<Teuchos::RCP<const Stokhos::Sparse3Tensor<ordinal_type,value_type> > >("Triple Product Tensor"))
Cijk = sgParams.template get<Teuchos::RCP<const Stokhos::Sparse3Tensor<ordinal_type,value_type> > >("Triple Product Tensor");
else {
std::string tp_type = sgParams.get("Triple Product Size", "Full");
TEUCHOS_TEST_FOR_EXCEPTION(
tp_type != "Full" && tp_type != "Linear",
Teuchos::Exceptions::InvalidParameter,
std::endl << "Invalid triple product expansion type " << tp_type <<
std::endl);
if (tp_type == "Full")
Cijk = basis->computeTripleProductTensor();
else
Cijk = basis->computeLinearTripleProductTensor();
sgParams.set("Triple Product Tensor", Cijk);
}
// Create expansion
std::string exp_type = expParams.get("Type", "Algebraic");
if (exp_type == "Algebraic")
expansion =
Teuchos::rcp(new Stokhos::AlgebraicOrthogPolyExpansion<ordinal_type,value_type>(basis, Cijk, Teuchos::rcp(&expParams,false)));
else if (exp_type == "Quadrature") {
Teuchos::ParameterList& quadParams = sgParams.sublist("Quadrature");
Teuchos::RCP<const Stokhos::Quadrature<ordinal_type,value_type> > quad;
if (quadParams.template isType<Teuchos::RCP<const Stokhos::Quadrature<ordinal_type,value_type> > >("Stochastic Galerkin Quadrature"))
quad = quadParams.template get<Teuchos::RCP<const Stokhos::Quadrature<ordinal_type,value_type> > >("Stochastic Galerkin Quadrature");
else {
quad =
Stokhos::QuadratureFactory<ordinal_type,value_type>::create(sgParams);
quadParams.set("Stochastic Galerkin Quadrature", quad);
}
expansion =
Teuchos::rcp(new Stokhos::QuadOrthogPolyExpansion<ordinal_type,value_type>(basis, Cijk, quad, Teuchos::rcp(&expParams,false)));
}
else if (exp_type == "For UQTK") {
#ifdef HAVE_STOKHOS_FORUQTK
typename Stokhos::ForUQTKOrthogPolyExpansion<ordinal_type,value_type>::EXPANSION_METHOD method =
expParams.get("ForUQTK Expansion Method",
Stokhos::ForUQTKOrthogPolyExpansion<ordinal_type,value_type>::TAYLOR);
value_type rtol = expParams.get("ForUQTK Expansion Tolerance", 1e-12);
expansion =
Teuchos::rcp(new Stokhos::ForUQTKOrthogPolyExpansion<ordinal_type,value_type>(basis, Cijk, method, rtol));
#else
TEUCHOS_TEST_FOR_EXCEPTION(true, Teuchos::Exceptions::InvalidParameter,
std::endl <<
"Error! Stokhos::ExpansionFactory::create(): " <<
"ForUQTK expansion requires ForUQTK!" << std::endl);
#endif
}
/*
else if (exp_type == "Derivative") {
Teuchos::RCP<const Stokhos::DerivBasis<ordinal_type,value_type> > deriv_basis = Teuchos::rcp_dynamic_cast<const Stokhos::DerivBasis<ordinal_type,value_type> >(basis, true);
Teuchos::RCP<Teuchos::SerialDenseMatrix<ordinal_type,value_type> > Bij;
if (sgParams.template isType<Teuchos::RCP<const Teuchos::SerialDenseMatrix<ordinal_type,value_type> > >("Derivative Double Product Tensor"))
Bij = sgParams.template get<const Teuchos::RCP<Teuchos::SerialDenseMatrix<ordinal_type,value_type> > >("Derivative Double Product Tensor");
else {
Bij = deriv_basis->computeDerivDoubleProductTensor();
sgParams.set("Derivative Double Product Tensor", Bij);
}
Teuchos::RCP<const Stokhos::Dense3Tensor<ordinal_type,value_type> > Dijk;
if (sgParams.template isType<Teuchos::RCP<const Stokhos::Dense3Tensor<ordinal_type,value_type> > >("Derivative Triple Product Tensor"))
Dijk = sgParams.template get<Teuchos::RCP<const Stokhos::Dense3Tensor<ordinal_type,value_type> > >("Derivative Triple Product Tensor");
else {
Dijk = deriv_basis->computeDerivTripleProductTensor(Bij, Cijk);
sgParams.set("Derivative Triple Product Tensor", Dijk);
}
expansion =
Teuchos::rcp(new
Stokhos::DerivOrthogPolyExpansion<ordinal_type,value_type>(
deriv_basis, Bij, Cijk, Dijk));
}
*/
else if (exp_type == "Pseudospectral") {
typedef Stokhos::PseudoSpectralOperator<ordinal_type,value_type> psop_type;
Teuchos::ParameterList& psopParams =
sgParams.sublist("Pseudospectral Operator");
Teuchos::RCP<const psop_type> psop;
if (psopParams.template isType<Teuchos::RCP<const psop_type> >(
"Stochastic Galerkin Pseudospectral Operator"))
psop = psopParams.template get<Teuchos::RCP<const psop_type> >(
"Stochastic Galerkin Pseudospectral Operator");
else {
psop =
Stokhos::PseudoSpectralOperatorFactory<ordinal_type,value_type>::create(sgParams);
psopParams.set("Stochastic Galerkin Pseudospectral Operator", psop);
}
expansion =
Teuchos::rcp(new Stokhos::PseudoSpectralOrthogPolyExpansion<ordinal_type,value_type>(basis, Cijk, psop, Teuchos::rcp(&expParams,false)));
}
else
TEUCHOS_TEST_FOR_EXCEPTION(true, Teuchos::Exceptions::InvalidParameter,
std::endl <<
"Error! Stokhos::ExpansionFactory::create(): " <<
"Invalid expansion type " << exp_type << std::endl);
expParams.set("Stochastic Galerkin Expansion", expansion);
return expansion;
}
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