NOX::Epetra::Vector Class Reference

Implementation of NOX::Abstract::Vector for Epetra vectors. More...

#include <NOX_Epetra_Vector.H>

Inheritance diagram for NOX::Epetra::Vector:

[legend]Collaboration diagram for NOX::Epetra::Vector:[legend]List of all members.


Public Types
enum	MemoryType { CreateView, CreateCopy }
	Type of memory management to use when constructing the vector. More...
Public Member Functions
	Vector (const Teuchos::RefCountPtr< Epetra_Vector > &source, NOX::Epetra::Vector::MemoryType memoryType=NOX::Epetra::Vector::CreateCopy, NOX::CopyType type=NOX::DeepCopy, Teuchos::RefCountPtr< NOX::Epetra::VectorSpace > vs=Teuchos::null)
	Constructor that creates a COPY or VIEW of the Epetra_Vector.
	Vector (const Epetra_Vector &source, NOX::CopyType type=NOX::DeepCopy, Teuchos::RefCountPtr< NOX::Epetra::VectorSpace > vs=Teuchos::null)
	Construct by copying map and/or elements of an Epetra_Vector.
	Vector (const NOX::Epetra::Vector &source, NOX::CopyType type=NOX::DeepCopy)
	Copy constructor.
	~Vector ()
	Destruct Vector.
virtual int	length () const
	Return the length of vector.
virtual void	print (std::ostream &stream) const
	Print the vector. To be used for debugging only.
virtual Teuchos::RefCountPtr< NOX::Epetra::VectorSpace >	getVectorSpace () const
	Returns the NOX::Epetra::VectorSpace associated with this vector.
Access to underlying Petra vector.
virtual Epetra_Vector &	getEpetraVector ()
	Get reference to underlying Epetra vector.
virtual const Epetra_Vector &	getEpetraVector () const
	Get const reference to underlying Epetra vector.
Initialization methods.
virtual NOX::Abstract::Vector &	init (double gamma)
	Initialize every element of this vector with `gamma`.
virtual NOX::Abstract::Vector &	random (bool useSeed=false, int seed=1)
	Initialize each element of this vector with a random value.
virtual NOX::Abstract::Vector &	operator= (const Epetra_Vector &y)
	Copies source vector into "this".
virtual NOX::Abstract::Vector &	operator= (const NOX::Epetra::Vector &y)
virtual NOX::Abstract::Vector &	operator= (const NOX::Abstract::Vector &y)
	Copy source vector `y` into this vector.
virtual NOX::Abstract::Vector &	abs (const NOX::Epetra::Vector &y)
virtual NOX::Abstract::Vector &	abs (const NOX::Abstract::Vector &y)
	Put element-wise absolute values of source vector `y` into this vector.
virtual NOX::Abstract::Vector &	reciprocal (const NOX::Epetra::Vector &y)
virtual NOX::Abstract::Vector &	reciprocal (const NOX::Abstract::Vector &y)
	Put element-wise reciprocal of source vector `y` into this vector.
Update methods.
virtual NOX::Abstract::Vector &	scale (double gamma)
	Scale each element of this vector by `gamma`.
virtual NOX::Abstract::Vector &	scale (const NOX::Epetra::Vector &a)
virtual NOX::Abstract::Vector &	scale (const NOX::Abstract::Vector &a)
	Scale this vector element-by-element by the vector a.
virtual NOX::Abstract::Vector &	update (double alpha, const NOX::Epetra::Vector &a, double gamma=0.0)
virtual NOX::Abstract::Vector &	update (double alpha, const NOX::Abstract::Vector &a, double gamma=0.0)
	Compute x = (alpha * a) + (gamma * x) where x is this vector.
virtual NOX::Abstract::Vector &	update (double alpha, const NOX::Epetra::Vector &a, double beta, const NOX::Epetra::Vector &b, double gamma=0.0)
virtual NOX::Abstract::Vector &	update (double alpha, const NOX::Abstract::Vector &a, double beta, const NOX::Abstract::Vector &b, double gamma=0.0)
	Compute x = (alpha * a) + (beta * b) + (gamma * x) where x is this vector.
Creating new Vectors.
virtual Teuchos::RefCountPtr< NOX::Abstract::Vector >	clone (CopyType type=DeepCopy) const
virtual Teuchos::RefCountPtr< NOX::Abstract::MultiVector >	createMultiVector (const NOX::Abstract::Vector const vecs, int numVecs, NOX::CopyType type=NOX::DeepCopy) const
	Create a MultiVector with `numVecs+1` columns out of an array of Vectors. The vector stored under `this` will be the first column with the remaining `numVecs` columns given by `vecs`.
virtual Teuchos::RefCountPtr< NOX::Abstract::MultiVector >	createMultiVector (int numVecs, NOX::CopyType type=NOX::DeepCopy) const
	Create a MultiVector with `numVecs` columns.
Norms.
virtual double	norm (NOX::Abstract::Vector::NormType type=TwoNorm) const
	Norm.
virtual double	norm (const NOX::Epetra::Vector &weights) const
virtual double	norm (const NOX::Abstract::Vector &weights) const
	Weighted 2-Norm.
Inner products
virtual double	innerProduct (const NOX::Epetra::Vector &y) const
virtual double	innerProduct (const NOX::Abstract::Vector &y) const
	Inner product with `y`.
Protected Attributes
Teuchos::RefCountPtr< Epetra_Vector >	epetraVec
	Pointer to petra vector owned by this object.
Teuchos::RefCountPtr< NOX::Epetra::VectorSpace >	vectorSpace
	Pointer to the vector space.

Detailed Description

Implementation of NOX::Abstract::Vector for Epetra vectors.

Member Enumeration Documentation

enum NOX::Epetra::Vector::MemoryType

Type of memory management to use when constructing the vector.

Enumeration values:

CreateView Keeps a pointer to and uses the actual Epetra_Vector passed in.

CreateCopy Allocates a new underlying Epetra_Vector object.

Constructor & Destructor Documentation

NOX::Epetra::Vector::Vector ( const Teuchos::RefCountPtr< Epetra_Vector > & source,

NOX::Epetra::Vector::MemoryType memoryType = NOX::Epetra::Vector::CreateCopy,

NOX::CopyType type = NOX::DeepCopy,

Teuchos::RefCountPtr< NOX::Epetra::VectorSpace > vs = Teuchos::null

)

Constructor that creates a COPY or VIEW of the Epetra_Vector.
NOTE: This ctor should just always create a view. It should be implicit from the fact that a RefCountPtr object is being passed in that a persisting relationship is present. However, since this could cause confusion, the default is to make a copy and if a user wants a view, they must pass in an explicit flag.
A VIEW of a vector uses the same underlying memory. WARNING: A View can be dangerous since multiple objects can access the same memory locations.

NOX::Epetra::Vector::Vector ( const Epetra_Vector & source,

NOX::CopyType type = NOX::DeepCopy,

Teuchos::RefCountPtr< NOX::Epetra::VectorSpace > vs = Teuchos::null

)

Construct by copying map and/or elements of an Epetra_Vector.
Allocates an entirely new vector. Does NOT allow for a view.

Member Function Documentation

NOX::Abstract::Vector & NOX::Epetra::Vector::abs ( const NOX::Abstract::Vector & y ) [virtual]

Put element-wise absolute values of source vector y into this vector.
Here x represents this vector, and we update it as
$x_i = | y_i | \quad \mbox{for } i=1,\dots,n$

Returns:
Reference to this object

Implements NOX::Abstract::Vector.

Teuchos::RefCountPtr< NOX::Abstract::MultiVector > NOX::Epetra::Vector::createMultiVector ( int numVecs,

NOX::CopyType type = NOX::DeepCopy

) const [virtual]

Create a MultiVector with numVecs columns.
The implementation here creates a NOX::Epetra::MultiVector with either Shape or Deep copies of the supplied vector.
Reimplemented from NOX::Abstract::Vector.

Teuchos::RefCountPtr< NOX::Abstract::MultiVector > NOX::Epetra::Vector::createMultiVector ( const NOX::Abstract::Vector *const * vecs,

int numVecs,

NOX::CopyType type = NOX::DeepCopy

) const [virtual]

Create a MultiVector with numVecs+1 columns out of an array of Vectors. The vector stored under this will be the first column with the remaining numVecs columns given by vecs.
The implementation here creates a NOX::Epetra::MultiVector with either Shape or Deep copies of the supplied vectors.
Reimplemented from NOX::Abstract::Vector.

NOX::Abstract::Vector & NOX::Epetra::Vector::init ( double gamma ) [virtual]

Initialize every element of this vector with gamma.
Here x represents this vector, and we update it as
$x_i = \gamma \quad \mbox{for } i=1,\dots,n$

Returns:
Reference to this object

Implements NOX::Abstract::Vector.

double NOX::Epetra::Vector::innerProduct ( const NOX::Abstract::Vector & y ) const [virtual]

Inner product with y.
Here x represents this vector, and we compute its inner product with y as follows:
$\langle x,y \rangle = \sum_{i=1}^n x_i y_i$

Returns:
$\langle x,y \rangle$

Implements NOX::Abstract::Vector.

int NOX::Epetra::Vector::length ( ) const [virtual]

Return the length of vector.

Returns:
The length of this vector

Note:
Even if the vector is distributed across processors, this should return the global length of the vector.

Implements NOX::Abstract::Vector.

double NOX::Epetra::Vector::norm ( const NOX::Abstract::Vector & weights ) const [virtual]

Weighted 2-Norm.
Here x represents this vector, and we compute its weighted norm as follows:
$\|x\|_w = \sqrt{\sum_{i=1}^{n} w_i \; x_i^2}$

Returns:
$\|x\|_w$

Implements NOX::Abstract::Vector.

double NOX::Epetra::Vector::norm ( NOX::Abstract::Vector::NormType type = TwoNorm ) const [virtual]

Norm.
Here x represents this vector, and we compute its norm as follows: for each NOX::Abstract::Vector::NormType:

NOX::Abstract::Vector::TwoNorm
$\|x\| = \sqrt{\sum_{i=1}^{n} x_i^2}$

NOX::Abstract::Vector::OneNorm
$\|x\| = \sum_{i=1}^{n} |x_i|$

NOX::Abstract::Vector::MaxNorm
$\|x\| = \max_{i} |x_i|$

Returns:
$\|x\|$

Implements NOX::Abstract::Vector.

NOX::Abstract::Vector & NOX::Epetra::Vector::operator= ( const NOX::Abstract::Vector & y ) [virtual]

Copy source vector y into this vector.
Here x represents this vector, and we update it as
$x_i = y_i \quad \mbox{for } i=1,\dots,n$

Returns:
Reference to this object

Implements NOX::Abstract::Vector.

NOX::Abstract::Vector & NOX::Epetra::Vector::operator= ( const Epetra_Vector & y ) [virtual]

Copies source vector into "this".
NOTE: this will NOT copy the underlying vector space into the new vector.

NOX::Abstract::Vector & NOX::Epetra::Vector::random ( bool useSeed = false,

int seed = 1

) [virtual]

Initialize each element of this vector with a random value.
If useSeed is true, uses the value of seed to seed the random number generator before filling the entries of this vector. So, if two calls are made where useSeed is true and seed is the same, then the vectors returned should be the same.
Default implementation throw an error. Only referenced by LOCA methods.

Returns:
Reference to this object

Reimplemented from NOX::Abstract::Vector.

NOX::Abstract::Vector & NOX::Epetra::Vector::reciprocal ( const NOX::Abstract::Vector & y ) [virtual]

Put element-wise reciprocal of source vector y into this vector.
Here x represents this vector, and we update it as
$x_i = \frac{1}{y_i} \quad \mbox{for } i=1,\dots,n$

Returns:
Reference to this object

Implements NOX::Abstract::Vector.

NOX::Abstract::Vector & NOX::Epetra::Vector::scale ( const NOX::Abstract::Vector & a ) [virtual]

Scale this vector element-by-element by the vector a.
Here x represents this vector, and we update it as
$x_i = x_i \cdot a_i \quad \mbox{for } i=1,\dots,n$

Returns:
Reference to this object

Implements NOX::Abstract::Vector.

NOX::Abstract::Vector & NOX::Epetra::Vector::scale ( double gamma ) [virtual]

Scale each element of this vector by gamma.
Here x represents this vector, and we update it as
$x_i = \gamma x_i \quad \mbox{for } i=1,\dots,n$

Returns:
Reference to this object

Implements NOX::Abstract::Vector.

NOX::Abstract::Vector & NOX::Epetra::Vector::update ( double alpha,

const NOX::Abstract::Vector & a,

double beta,

const NOX::Abstract::Vector & b,

double gamma = 0.0

) [virtual]

Compute x = (alpha * a) + (beta * b) + (gamma * x) where x is this vector.
Here x represents this vector, and we update it as
$x_i = \alpha \; a_i + \beta \; b_i + \gamma \; x_i \quad \mbox{for } i=1,\dots,n$

Returns:
Reference to this object

Implements NOX::Abstract::Vector.

NOX::Abstract::Vector & NOX::Epetra::Vector::update ( double alpha,

const NOX::Abstract::Vector & a,

double gamma = 0.0

) [virtual]

Compute x = (alpha * a) + (gamma * x) where x is this vector.
Here x represents this vector, and we update it as
$x_i = \alpha \; a_i + \gamma \; x_i \quad \mbox{for } i=1,\dots,n$

Returns:
Reference to this object

Implements NOX::Abstract::Vector.

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

NOX_Epetra_Vector.H
NOX_Epetra_Vector.C

Generated on Thu Sep 18 12:38:38 2008 for NOX by

1.3.9.1

NOX::Epetra::Vector Class Reference

Public Types

Public Member Functions

Protected Attributes

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation