Stokhos::SparseGridQuadrature< ordinal_type, value_type > Class Template Reference

Defines quadrature for a tensor product basis by Smolyak sparse grids. More...

#include <Stokhos_SparseGridQuadrature.hpp>

Inheritance diagram for Stokhos::SparseGridQuadrature< ordinal_type, value_type >:

Collaboration diagram for Stokhos::SparseGridQuadrature< ordinal_type, value_type >:

Public Member Functions
	SparseGridQuadrature (const Teuchos::RCP< const ProductBasis< ordinal_type, value_type > > &product_basis, ordinal_type sparse_grid_level=0, value_type duplicate_tol=1.0e-12, ordinal_type growth_rate=Pecos::SLOW_RESTRICTED_GROWTH)
	Constructor.
virtual	~SparseGridQuadrature ()
	Destructor.
virtual ordinal_type	size () const
	Get number of quadrature points.
virtual const Teuchos::Array< Teuchos::Array< value_type > > &	getQuadPoints () const
	Get quadrature points.
virtual const Teuchos::Array< value_type > &	getQuadWeights () const
	Get quadrature weights.
virtual const Teuchos::Array< Teuchos::Array< value_type > > &	getBasisAtQuadPoints () const
	Get values of basis at quadrature points.
virtual std::ostream &	print (std::ostream &os) const
	Print quadrature data.
Public Member Functions inherited from Stokhos::Quadrature< ordinal_type, value_type >
	Quadrature ()
	Constructor.
virtual	~Quadrature ()
	Destructor.

Protected Member Functions
Stokhos::SparseGridQuadrature< int, double > *	sgq (NULL)

Protected Attributes
Teuchos::Array< Teuchos::RCP< const OneDOrthogPolyBasis< ordinal_type, value_type > > >	coordinate_bases
	Coordinate bases.
Teuchos::Array< Teuchos::Array< value_type > >	quad_points
	Quadrature points.
Teuchos::Array< value_type >	quad_weights
	Quadrature weights.
Teuchos::Array< Teuchos::Array< value_type > >	quad_values
	Quadrature values.

Static Protected Attributes
static SparseGridQuadrature *	sgq
	Static pointer for VPISparseGrid interface.

Detailed Description

template<typename ordinal_type, typename value_type>
class Stokhos::SparseGridQuadrature< ordinal_type, value_type >

Defines quadrature for a tensor product basis by Smolyak sparse grids.

Requires Dakota webbur quadrature package, which is currently provided through TriKota. To enable, configure Stokhos with TriKota enabled and see the TriKota instructions for building TriKota with Dakota.

Constructor & Destructor Documentation

SparseGridQuadrature()

template<typename ordinal_type, typename value_type>

Stokhos::SparseGridQuadrature< ordinal_type, value_type >::SparseGridQuadrature	(	const Teuchos::RCP< const ProductBasis< ordinal_type, value_type > > &	product_basis,
		ordinal_type	sparse_grid_level = 0,
		value_type	duplicate_tol = 1.0e-12,
		ordinal_type	growth_rate = Pecos::SLOW_RESTRICTED_GROWTH )

Constructor.

Parameters

product_basis	product basis
sparse_grid_level	sparse grid level defining the order of the quadrature. If equal to 0, the level is calculated using a heuristic formula.

References coordinate_bases, quad_points, quad_values, quad_weights, sgq, and Stokhos::ProductContainer< coeff_type >::size().

Member Function Documentation

getBasisAtQuadPoints()

template<typename ordinal_type, typename value_type>

const Teuchos::Array< Teuchos::Array< value_type > > & Stokhos::SparseGridQuadrature< ordinal_type, value_type >::getBasisAtQuadPoints ( ) const

virtual

Get values of basis at quadrature points.

Array is dimensioned Q-by-P where Q is the number of quadrature points and P is the size of the basis.

Implements Stokhos::Quadrature< ordinal_type, value_type >.

References quad_values.

getQuadPoints()

template<typename ordinal_type, typename value_type>

const Teuchos::Array< Teuchos::Array< value_type > > & Stokhos::SparseGridQuadrature< ordinal_type, value_type >::getQuadPoints ( ) const

virtual

Get quadrature points.

Array is dimensioned Q-by-d where Q is the number of quadrature points and d is the dimension of the basis.

Implements Stokhos::Quadrature< ordinal_type, value_type >.

References quad_points.

getQuadWeights()

template<typename ordinal_type, typename value_type>

const Teuchos::Array< value_type > & Stokhos::SparseGridQuadrature< ordinal_type, value_type >::getQuadWeights ( ) const

virtual

Get quadrature weights.

Array is of size Q where Q is the number of quadrature points.

Implements Stokhos::Quadrature< ordinal_type, value_type >.

References quad_weights.

print()

template<typename ordinal_type, typename value_type>

std::ostream & Stokhos::SparseGridQuadrature< ordinal_type, value_type >::print ( std::ostream & os ) const

virtual

Print quadrature data.

Implements Stokhos::Quadrature< ordinal_type, value_type >.

References quad_points, quad_values, quad_weights, and size().

size()

template<typename ordinal_type, typename value_type>

virtual ordinal_type Stokhos::SparseGridQuadrature< ordinal_type, value_type >::size ( ) const

inlinevirtual

Get number of quadrature points.

Implements Stokhos::Quadrature< ordinal_type, value_type >.

References quad_weights.

Referenced by print().

---

The documentation for this class was generated from the following files:

• Stokhos_SparseGridQuadrature.hpp
• Stokhos_SparseGridQuadratureImp.hpp