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Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node > Class Template Reference

A class for constructing and using dense, distributors vectors. More...

#include <Tpetra_Vector_decl.hpp>

Inheritance diagram for Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node >:
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List of all members.

Public Types

Typedefs to facilitate template metaprogramming.
typedef Scalar scalar_type
 The type of entries in the vector(s).
typedef LocalOrdinal local_ordinal_type
 The type of local indices.
typedef GlobalOrdinal global_ordinal_type
 The type of global indices.
typedef Node node_type
 The Kokkos Node type.

Public Member Functions

Constructor/Destructor Methods
 Vector (const RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &map, bool zeroOut=true)
 Sets all vector entries to zero.
 Vector (const Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &source)
 Vector copy constructor.
 Vector (const RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &map, const ArrayView< const Scalar > &A)
 Set vector values from an existing array (copy)
virtual ~Vector ()
 Destructor.
Post-construction modification routines
void replaceGlobalValue (GlobalOrdinal globalRow, const Scalar &value)
 Replace current value at the specified location with specified value.
void sumIntoGlobalValue (GlobalOrdinal globalRow, const Scalar &value)
 Adds specified value to existing value at the specified location.
void replaceLocalValue (LocalOrdinal myRow, const Scalar &value)
 Replace current value at the specified location with specified values.
void sumIntoLocalValue (LocalOrdinal myRow, const Scalar &value)
 Adds specified value to existing value at the specified location.
Extraction methods
void get1dCopy (ArrayView< Scalar > A) const
 Return multi-vector values in user-provided two-dimensional array (using Teuchos memory management classes).
Mathematical methods
Scalar dot (const Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &a) const
 Computes dot product of this Vector against input Vector x.
Teuchos::ScalarTraits< Scalar >
::magnitudeType 		norm1 () const
 Return 1-norm of this Vector.
Teuchos::ScalarTraits< Scalar >
::magnitudeType 		norm2 () const
 Compute 2-norm of this Vector.
Teuchos::ScalarTraits< Scalar >
::magnitudeType 		normInf () const
 Compute Inf-norm of this Vector.
Teuchos::ScalarTraits< Scalar >
::magnitudeType 		normWeighted (const Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &weights) const
 Compute Weighted 2-norm (RMS Norm) of this Vector.
Scalar meanValue () const
 Compute mean (average) value of this Vector.
Overridden from Teuchos::Describable
std::string description () const
 Return a simple one-line description of this object.
void describe (Teuchos::FancyOStream &out, const Teuchos::EVerbosityLevel verbLevel=Teuchos::Describable::verbLevel_default) const
 Print the object with some verbosity level to an FancyOStream object.
Post-construction modification routines
void replaceGlobalValue (GlobalOrdinal globalRow, size_t vectorIndex, const Scalar &value)
 Replace value, using global (row) index.
void sumIntoGlobalValue (GlobalOrdinal globalRow, size_t vectorIndex, const Scalar &value)
 Add value to existing value, using global (row) index.
void replaceLocalValue (LocalOrdinal myRow, size_t vectorIndex, const Scalar &value)
 Replace value, using local (row) index.
void sumIntoLocalValue (LocalOrdinal myRow, size_t vectorIndex, const Scalar &value)
 Add value to existing value, using local (row) index.
void putScalar (const Scalar &value)
 Set all values in the multivector with the given value.
void randomize ()
 Set all values in the multivector to pseudorandom numbers.
void replaceMap (const RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &map)
 Replace the underlying Map with a compatible one.
void reduce ()
 Sum values of a locally replicated multivector across all processes.
Data Copy and View get methods
Teuchos::RCP< MultiVector
< Scalar, LocalOrdinal,
GlobalOrdinal, Node > > 		subCopy (const Teuchos::Range1D &colRng) const
 Return a MultiVector with copies of selected columns.
Teuchos::RCP< MultiVector
< Scalar, LocalOrdinal,
GlobalOrdinal, Node > > 		subCopy (const Teuchos::ArrayView< const size_t > &cols) const
 Return a MultiVector with copies of selected columns.
Teuchos::RCP< const
MultiVector< Scalar,
LocalOrdinal, GlobalOrdinal,
Node > > 		subView (const Teuchos::Range1D &colRng) const
 Return a const MultiVector with const views of selected columns.
Teuchos::RCP< const
MultiVector< Scalar,
LocalOrdinal, GlobalOrdinal,
Node > > 		subView (const Teuchos::ArrayView< const size_t > &cols) const
 Return a const MultiVector with const views of selected columns.
Teuchos::RCP< MultiVector
< Scalar, LocalOrdinal,
GlobalOrdinal, Node > > 		subViewNonConst (const Teuchos::Range1D &colRng)
 Return a MultiVector with views of selected columns.
Teuchos::RCP< MultiVector
< Scalar, LocalOrdinal,
GlobalOrdinal, Node > > 		subViewNonConst (const Teuchos::ArrayView< const size_t > &cols)
 Return a MultiVector with views of selected columns.
Teuchos::RCP< const
MultiVector< Scalar,
LocalOrdinal, GlobalOrdinal,
Node > > 		offsetView (const Teuchos::RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &subMap, size_t offset) const
 Return a const MultiVector view of a subset of rows.
Teuchos::RCP< MultiVector
< Scalar, LocalOrdinal,
GlobalOrdinal, Node > > 		offsetViewNonConst (const Teuchos::RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &subMap, size_t offset)
 Return a non-const MultiVector view of a subset of rows.
Teuchos::RCP< const Vector
< Scalar, LocalOrdinal,
GlobalOrdinal, Node > > 		getVector (size_t j) const
 Return a Vector which is a const view of column j.
Teuchos::RCP< Vector< Scalar,
LocalOrdinal, GlobalOrdinal,
Node > > 		getVectorNonConst (size_t j)
 Return a Vector which is a nonconst view of column j.
Teuchos::ArrayRCP< const Scalar > getData (size_t j) const
 Const view of the local values in a particular vector of this multivector.
Teuchos::ArrayRCP< Scalar > getDataNonConst (size_t j)
 View of the local values in a particular vector of this multivector.
void get1dCopy (Teuchos::ArrayView< Scalar > A, size_t LDA) const
 Fill the given array with a copy of this multivector's local values.
void get2dCopy (Teuchos::ArrayView< const Teuchos::ArrayView< Scalar > > ArrayOfPtrs) const
 Fill the given array with a copy of this multivector's local values.
Teuchos::ArrayRCP< const Scalar > get1dView () const
 Const persisting (1-D) view of this multivector's local values.
Teuchos::ArrayRCP
< Teuchos::ArrayRCP< const
Scalar > > 		get2dView () const
 Return const persisting pointers to values.
Teuchos::ArrayRCP< Scalar > get1dViewNonConst ()
 Nonconst persisting (1-D) view of this multivector's local values.
Teuchos::ArrayRCP
< Teuchos::ArrayRCP< Scalar > > 		get2dViewNonConst ()
 Return non-const persisting pointers to values.
const Kokkos::MultiVector
< Scalar, Node > & 		getLocalMV () const
 Return a const reference to the underlying Kokkos::MultiVector object (advanced use only)
Kokkos::MultiVector< Scalar,
Node > & 		getLocalMVNonConst ()
 Return a non-const reference to the underlying Kokkos::MultiVector object (advanced use only)
Mathematical methods
void dot (const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &A, const Teuchos::ArrayView< Scalar > &dots) const
 Compute dot product of each corresponding pair of vectors, dots[i] = this[i].dot(A[i])
void abs (const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &A)
 Put element-wise absolute values of input Multi-vector in target: A = abs(this)
void reciprocal (const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &A)
 Put element-wise reciprocal values of input Multi-vector in target, this(i,j) = 1/A(i,j).
void scale (const Scalar &alpha)
 Scale the current values of a multi-vector, this = alpha*this.
void scale (Teuchos::ArrayView< const Scalar > alpha)
 Scale the current values of a multi-vector, this[j] = alpha[j]*this[j].
void scale (const Scalar &alpha, const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &A)
 Replace multi-vector values with scaled values of A, this = alpha*A.
void update (const Scalar &alpha, const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &A, const Scalar &beta)
 Update multi-vector values with scaled values of A, this = beta*this + alpha*A.
void update (const Scalar &alpha, const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &A, const Scalar &beta, const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &B, const Scalar &gamma)
 Update multi-vector with scaled values of A and B, this = gamma*this + alpha*A + beta*B.
void norm1 (const Teuchos::ArrayView< typename Teuchos::ScalarTraits< Scalar >::magnitudeType > &norms) const
 Compute 1-norm of each vector in multi-vector.
void norm2 (const Teuchos::ArrayView< typename Teuchos::ScalarTraits< Scalar >::magnitudeType > &norms) const
 Compute 2-norm of each vector in multi-vector.
void normInf (const Teuchos::ArrayView< typename Teuchos::ScalarTraits< Scalar >::magnitudeType > &norms) const
 Compute Inf-norm of each vector in multi-vector.
void normWeighted (const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &weights, const Teuchos::ArrayView< typename Teuchos::ScalarTraits< Scalar >::magnitudeType > &norms) const
 Compute Weighted 2-norm (RMS Norm) of each vector in multi-vector.
void meanValue (const Teuchos::ArrayView< Scalar > &means) const
 Compute mean (average) value of each vector in multi-vector.
void multiply (Teuchos::ETransp transA, Teuchos::ETransp transB, const Scalar &alpha, const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &A, const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &B, const Scalar &beta)
 Matrix-matrix multiplication: this = beta*this + alpha*op(A)*op(B).
void elementWiseMultiply (Scalar scalarAB, const Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &A, const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &B, Scalar scalarThis)
 Element-wise multiply of a Vector A with a MultiVector B.
Attribute access functions
size_t getNumVectors () const
 Number of columns in the multivector.
size_t getLocalLength () const
 Local number of rows on the calling process.
global_size_t getGlobalLength () const
 Global number of rows in the multivector.
size_t getStride () const
 Stride between columns in the multivector.
bool isConstantStride () const
 Whether this multivector has constant stride between columns.
Public methods for redistributing data
void doImport (const DistObject< Scalar, LocalOrdinal, GlobalOrdinal, Node > &source, const Import< LocalOrdinal, GlobalOrdinal, Node > &importer, CombineMode CM)
 Import using an Import object ("forward mode").
void doImport (const DistObject< Scalar, LocalOrdinal, GlobalOrdinal, Node > &source, const Export< LocalOrdinal, GlobalOrdinal, Node > &exporter, CombineMode CM)
 Import using an Export object ("reverse mode").
void doExport (const DistObject< Scalar, LocalOrdinal, GlobalOrdinal, Node > &dest, const Export< LocalOrdinal, GlobalOrdinal, Node > &exporter, CombineMode CM)
 Export using an Export object ("forward mode").
void doExport (const DistObject< Scalar, LocalOrdinal, GlobalOrdinal, Node > &dest, const Import< LocalOrdinal, GlobalOrdinal, Node > &importer, CombineMode CM)
 Export using an Import object ("reverse mode").
Attribute accessor methods
bool isDistributed () const
 Whether this is a globally distributed object.
const Teuchos::RCP< const Map
< LocalOrdinal, GlobalOrdinal,
Node > > & 		getMap () const
 The Map with which this DistObject was constructed.
I/O methods
void print (std::ostream &os) const
 Print this object to the given output stream.

Protected Member Functions

 Vector (const RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &map, const ArrayRCP< Scalar > &data)
 Advanced constructor accepting parallel buffer view, used by MultiVector to break off Vector objects.
 Vector (const RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &map, const ArrayRCP< Scalar > &data, EPrivateComputeViewConstructor)
 Advanced constructor accepting parallel buffer view, used by MultiVector to break off Vector objects.
virtual void doTransfer (const DistObject< Scalar, LocalOrdinal, GlobalOrdinal, Node > &source, CombineMode CM, size_t numSameIDs, const Teuchos::ArrayView< const LocalOrdinal > &permuteToLIDs, const Teuchos::ArrayView< const LocalOrdinal > &permuteFromLIDs, const Teuchos::ArrayView< const LocalOrdinal > &remoteLIDs, const Teuchos::ArrayView< const LocalOrdinal > &exportLIDs, Distributor &distor, ReverseOption revOp)
 Redistribute data across memory images.
Methods implemented by subclasses and used by \c doTransfer().

The doTransfer() method uses the subclass' implementations of these methods to implement data transfer. Subclasses of DistObject must implement these methods. This is an instance of the Template Method Pattern. ("Template" here doesn't mean "C++ template"; it means "pattern with holes that are filled in by the subclass' method implementations.")

virtual void copyAndPermute (const DistObject< Scalar, LocalOrdinal, GlobalOrdinal, Node > &source, size_t numSameIDs, const Teuchos::ArrayView< const LocalOrdinal > &permuteToLIDs, const Teuchos::ArrayView< const LocalOrdinal > &permuteFromLIDs)=0
 Perform copies and permutations that are local to this process.
virtual void packAndPrepare (const DistObject< Scalar, LocalOrdinal, GlobalOrdinal, Node > &source, const Teuchos::ArrayView< const LocalOrdinal > &exportLIDs, Teuchos::Array< Scalar > &exports, const Teuchos::ArrayView< size_t > &numPacketsPerLID, size_t &constantNumPackets, Distributor &distor)=0
 Perform any packing or preparation required for communication.
virtual void unpackAndCombine (const Teuchos::ArrayView< const LocalOrdinal > &importLIDs, const Teuchos::ArrayView< const Scalar > &imports, const Teuchos::ArrayView< size_t > &numPacketsPerLID, size_t constantNumPackets, Distributor &distor, CombineMode CM)=0
 Perform any unpacking and combining after communication.

Protected Attributes

KMV lclMV_
 The Kokkos::MultiVector containing the compute buffer of data.
Array< size_t > whichVectors_
 Indices of columns this multivector is viewing.
Teuchos::RCP< const Map
< LocalOrdinal, GlobalOrdinal,
Node > > 		map_
 The Map over which this object is distributed.
Instance data for tracking efficiency warnings
bool releaseViewsRaisedEfficiencyWarning_
 Whether releaseViews() has yet raised an efficiency warning.
bool createViewsRaisedEfficiencyWarning_
 Whether createViews() has yet raised an efficiency warning.
bool createViewsNonConstRaisedEfficiencyWarning_
 Whether createViewsNonConst() has yet raised an efficiency warning.

Related Functions

(Note that these are not member functions.)

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::RCP< MultiVector
< Scalar, LocalOrdinal,
GlobalOrdinal, Node > > 		createMultiVectorFromView (const Teuchos::RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &map, const Teuchos::ArrayRCP< Scalar > &view, size_t LDA, size_t numVectors)
 Nonmember MultiVector constructor with view semantics using user-allocated data.
template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
RCP< Vector< Scalar,
LocalOrdinal, GlobalOrdinal,
Node > > 		createVector (const RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &map)
 Non-member function to create a Vector from a specified Map.
template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
RCP< Vector< Scalar,
LocalOrdinal, GlobalOrdinal,
Node > > 		createVectorFromView (const RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &map, const ArrayRCP< Scalar > &view)
 Non-member function to create a Vector with view semantics using user-allocated data.
template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::RCP< MultiVector
< Scalar, LocalOrdinal,
GlobalOrdinal, Node > > 		createMultiVector (const Teuchos::RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &map, size_t numVectors)
 Nonmember MultiVector constructor: make a MultiVector from a given Map.

View constructors, used only by nonmember constructors.

template<class S , class LO , class GO , class N >
RCP< MultiVector< S, LO, GO, N > > createMultiVectorFromView (const Teuchos::RCP< const Map< LO, GO, N > > &, const Teuchos::ArrayRCP< S > &, size_t, size_t)
bool vectorIndexOutOfRange (size_t VectorIndex) const
template<class T >
ArrayRCP< T > getSubArrayRCP (ArrayRCP< T > arr, size_t j) const
 Persisting view of j-th column in the given ArrayRCP.

Implementation of Tpetra::DistObject

bool checkSizes (const DistObject< Scalar, LocalOrdinal, GlobalOrdinal, Node > &sourceObj)
 Whether data redistribution between sourceObj and this object is legal.
void copyAndPermute (const DistObject< Scalar, LocalOrdinal, GlobalOrdinal, Node > &sourceObj, size_t numSameIDs, const ArrayView< const LocalOrdinal > &permuteToLIDs, const ArrayView< const LocalOrdinal > &permuteFromLIDs)
void packAndPrepare (const DistObject< Scalar, LocalOrdinal, GlobalOrdinal, Node > &sourceObj, const ArrayView< const LocalOrdinal > &exportLIDs, Array< Scalar > &exports, const ArrayView< size_t > &numExportPacketsPerLID, size_t &constantNumPackets, Distributor &distor)
void unpackAndCombine (const ArrayView< const LocalOrdinal > &importLIDs, const ArrayView< const Scalar > &imports, const ArrayView< size_t > &numPacketsPerLID, size_t constantNumPackets, Distributor &distor, CombineMode CM)
void createViews () const
 Hook for creating a const view.
void createViewsNonConst (Kokkos::ReadWriteOption rwo)
 Hook for creating a nonconst view.
void releaseViews () const
 Hook for releasing views.
ArrayRCP< Scalar > ncview_
 Nonconst host view created in createViewsNonConst().
ArrayRCP< const Scalar > cview_
 Const host view created in createViews().

Detailed Description

template<class Scalar, class LocalOrdinal = int, class GlobalOrdinal = LocalOrdinal, class Node = Kokkos::DefaultNode::DefaultNodeType>
class Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node >

A class for constructing and using dense, distributors vectors.

This class is templated on Scalar, LocalOrdinal and GlobalOrdinal. The LocalOrdinal type, if omitted, defaults to int. The GlobalOrdinal type, if omitted, defaults to the LocalOrdinal type.

Definition at line 57 of file Tpetra_Vector_decl.hpp.

Member Typedef Documentation

template<class Scalar, class LocalOrdinal = int, class GlobalOrdinal = LocalOrdinal, class Node = Kokkos::DefaultNode::DefaultNodeType>
typedef Scalar Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::scalar_type [inherited]

The type of entries in the vector(s).

Reimplemented in Tpetra::BlockMultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >.

Definition at line 335 of file Tpetra_MultiVector_decl.hpp.

template<class Scalar, class LocalOrdinal = int, class GlobalOrdinal = LocalOrdinal, class Node = Kokkos::DefaultNode::DefaultNodeType>
typedef LocalOrdinal Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::local_ordinal_type [inherited]

The type of local indices.

Reimplemented in Tpetra::BlockMultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >.

Definition at line 337 of file Tpetra_MultiVector_decl.hpp.

template<class Scalar, class LocalOrdinal = int, class GlobalOrdinal = LocalOrdinal, class Node = Kokkos::DefaultNode::DefaultNodeType>
typedef GlobalOrdinal Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::global_ordinal_type [inherited]

The type of global indices.

Reimplemented in Tpetra::BlockMultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >.

Definition at line 339 of file Tpetra_MultiVector_decl.hpp.

template<class Scalar, class LocalOrdinal = int, class GlobalOrdinal = LocalOrdinal, class Node = Kokkos::DefaultNode::DefaultNodeType>
typedef Node Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::node_type [inherited]

The Kokkos Node type.

Reimplemented in Tpetra::BlockMultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >.

Definition at line 341 of file Tpetra_MultiVector_decl.hpp.

Constructor & Destructor Documentation

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::Vector ( const RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &  map,
bool  zeroOut = true 
) [explicit]

Sets all vector entries to zero.

Definition at line 56 of file Tpetra_Vector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::Vector ( const Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &  source)

Vector copy constructor.

Definition at line 61 of file Tpetra_Vector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::Vector ( const RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &  map,
const ArrayView< const Scalar > &  A 
)

Set vector values from an existing array (copy)

Definition at line 80 of file Tpetra_Vector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::~Vector ( ) [virtual]

Destructor.

Definition at line 85 of file Tpetra_Vector_def.hpp.

template<class Scalar, class LocalOrdinal = int, class GlobalOrdinal = LocalOrdinal, class Node = Kokkos::DefaultNode::DefaultNodeType>
Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::Vector ( const RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &  map,
const ArrayRCP< Scalar > &  data 
) [protected]

Advanced constructor accepting parallel buffer view, used by MultiVector to break off Vector objects.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::Vector ( const RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &  map,
const ArrayRCP< Scalar > &  data,
EPrivateComputeViewConstructor   
) [protected]

Advanced constructor accepting parallel buffer view, used by MultiVector to break off Vector objects.

Definition at line 73 of file Tpetra_Vector_def.hpp.

Member Function Documentation

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::replaceGlobalValue ( GlobalOrdinal  globalRow,
const Scalar &  value 
)

Replace current value at the specified location with specified value.

Precondition:
globalRow must be a valid global element on this node, according to the row map.

Definition at line 88 of file Tpetra_Vector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::sumIntoGlobalValue ( GlobalOrdinal  globalRow,
const Scalar &  value 
)

Adds specified value to existing value at the specified location.

Precondition:
globalRow must be a valid global element on this node, according to the row map.

Definition at line 93 of file Tpetra_Vector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::replaceLocalValue ( LocalOrdinal  myRow,
const Scalar &  value 
)

Replace current value at the specified location with specified values.

Precondition:
localRow must be a valid local element on this node, according to the row map.

Definition at line 98 of file Tpetra_Vector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::sumIntoLocalValue ( LocalOrdinal  myRow,
const Scalar &  value 
)

Adds specified value to existing value at the specified location.

Precondition:
localRow must be a valid local element on this node, according to the row map.

Definition at line 103 of file Tpetra_Vector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::get1dCopy ( ArrayView< Scalar >  A) const

Return multi-vector values in user-provided two-dimensional array (using Teuchos memory management classes).

Definition at line 108 of file Tpetra_Vector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Scalar Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::dot ( const Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &  a) const

Computes dot product of this Vector against input Vector x.

Definition at line 114 of file Tpetra_Vector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::ScalarTraits< Scalar >::magnitudeType Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::norm1 ( ) const

Return 1-norm of this Vector.

Definition at line 152 of file Tpetra_Vector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::ScalarTraits< Scalar >::magnitudeType Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::norm2 ( ) const

Compute 2-norm of this Vector.

Definition at line 164 of file Tpetra_Vector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::ScalarTraits< Scalar >::magnitudeType Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::normInf ( ) const

Compute Inf-norm of this Vector.

Definition at line 177 of file Tpetra_Vector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::ScalarTraits< Scalar >::magnitudeType Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::normWeighted ( const Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &  weights) const

Compute Weighted 2-norm (RMS Norm) of this Vector.

Definition at line 189 of file Tpetra_Vector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Scalar Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::meanValue ( ) const

Compute mean (average) value of this Vector.

Definition at line 135 of file Tpetra_Vector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
std::string Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::description ( ) const [virtual]

Return a simple one-line description of this object.

Reimplemented from Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >.

Definition at line 211 of file Tpetra_Vector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::describe ( Teuchos::FancyOStream &  out,
const Teuchos::EVerbosityLevel  verbLevel = Teuchos::Describable::verbLevel_default 
) const [virtual]

Print the object with some verbosity level to an FancyOStream object.

Reimplemented from Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >.

Definition at line 220 of file Tpetra_Vector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::replaceGlobalValue ( GlobalOrdinal  globalRow,
size_t  vectorIndex,
const Scalar &  value 
) [inherited]

Replace value, using global (row) index.

Replace the current value at row globalRow (a global index) and column vectorIndex with the given value. The column index is zero based.

Precondition:
globalRow must be a valid global element on this process, according to the row Map.

Definition at line 2134 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::sumIntoGlobalValue ( GlobalOrdinal  globalRow,
size_t  vectorIndex,
const Scalar &  value 
) [inherited]

Add value to existing value, using global (row) index.

Add the given value to the existing value at row globalRow (a global index) and column vectorIndex. The column index is zero based.

Precondition:
globalRow must be a valid global element on this process, according to the row Map.

Definition at line 2148 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::replaceLocalValue ( LocalOrdinal  myRow,
size_t  vectorIndex,
const Scalar &  value 
) [inherited]

Replace value, using local (row) index.

Replace the current value at row myRow (a local index) and column vectorIndex with the given value. The column index is zero based.

Precondition:
myRow must be a valid local element on this process, according to the row Map.

Definition at line 2098 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::sumIntoLocalValue ( LocalOrdinal  myRow,
size_t  vectorIndex,
const Scalar &  value 
) [inherited]

Add value to existing value, using local (row) index.

Add the given value to the existing value at row myRow (a local index) and column vectorIndex. The column index is zero based.

Precondition:
myRow must be a valid local element on this process, according to the row Map.

Definition at line 2116 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::putScalar ( const Scalar &  value) [inherited]

Set all values in the multivector with the given value.

Definition at line 983 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::randomize ( ) [inherited]

Set all values in the multivector to pseudorandom numbers.

Note:
The implementation of this method may depend on the Kokkos Node type and on what third-party libraries you have available. Do not expect repeatable results.
Behavior of this method may or may not depend on external use of the C library routines srand() and rand().
Warning:
This method does not promise to use a distributed-memory parallel pseudorandom number generator. Corresponding values on different processes might be correlated. It also does not promise to use a high-quality pseudorandom number generator within each process.

Definition at line 962 of file Tpetra_MultiVector_def.hpp.

template<class Scalar, class LocalOrdinal = int, class GlobalOrdinal = LocalOrdinal, class Node = Kokkos::DefaultNode::DefaultNodeType>
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::replaceMap ( const RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &  map) [inherited]

Replace the underlying Map with a compatible one.

This method relabels the rows of the multivector using the global IDs in the input Map. Thus, it implicitly applies a permutation, without actually moving data. This only works if the input Map is compatible (in the sense of Map::isCompatible()) with the multivector's current Map, so that the number of rows per process does not change.

We only check for compatibility in debug mode (when Trilinos was built with the Trilinos_ENABLE_DEBUG option set). In that case, if the input Map is not compatible, then this method throws std::invalid_argument. We only check in debug mode because the check requires communication ( $O(1)$ all-reduces).

Note:
This method is not for arbitrary data redistribution. If you need to move data around, use Import or Export.
This method must always be called as a collective operation on all processes over which the multivector is distributed. This is because the method reserves the right to check for compatibility of the two Maps, at least in debug mode.

Definition at line 1004 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::reduce ( ) [inherited]

Sum values of a locally replicated multivector across all processes.

Warning:
This method may only be called for locally replicated MultiVectors.
Precondition:
isDistributed() == false

Definition at line 2029 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::RCP< MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > > Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::subCopy ( const Teuchos::Range1D &  colRng) const [inherited]

Return a MultiVector with copies of selected columns.

These methods are used to get the data underlying the MultiVector. They return data in one of three forms:

  • a MultiVector with a subset of the columns of the target MultiVector
  • a raw C pointer or array of raw C pointers
  • one of the Teuchos memory management classes Not all of these methods are valid for a particular MultiVector. For instance, calling a method that accesses a view of the data in a 1-D format (i.e., get1dView) requires that the target MultiVector has constant stride.

Definition at line 1390 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::RCP< MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > > Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::subCopy ( const Teuchos::ArrayView< const size_t > &  cols) const [inherited]

Return a MultiVector with copies of selected columns.

Definition at line 1363 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::RCP< const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > > Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::subView ( const Teuchos::Range1D &  colRng) const [inherited]

Return a const MultiVector with const views of selected columns.

Definition at line 1549 of file Tpetra_MultiVector_def.hpp.

template<class Scalar, class LocalOrdinal = int, class GlobalOrdinal = LocalOrdinal, class Node = Kokkos::DefaultNode::DefaultNodeType>
Teuchos::RCP<const MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> > Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::subView ( const Teuchos::ArrayView< const size_t > &  cols) const [inherited]

Return a const MultiVector with const views of selected columns.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::RCP< MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > > Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::subViewNonConst ( const Teuchos::Range1D &  colRng) [inherited]

Return a MultiVector with views of selected columns.

Definition at line 1610 of file Tpetra_MultiVector_def.hpp.

template<class Scalar, class LocalOrdinal = int, class GlobalOrdinal = LocalOrdinal, class Node = Kokkos::DefaultNode::DefaultNodeType>
Teuchos::RCP<MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> > Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::subViewNonConst ( const Teuchos::ArrayView< const size_t > &  cols) [inherited]

Return a MultiVector with views of selected columns.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::RCP< const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > > Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::offsetView ( const Teuchos::RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &  subMap,
size_t  offset 
) const [inherited]

Return a const MultiVector view of a subset of rows.

Return a const view of this MultiVector consisting of a subset of the rows, as specified by an offset and a subset Map of this MultiVector's current row Map.

Parameters:
InsubMap - The row Map for the new MultiVector.
Inoffset - The offset into the data of (*this).
Precondition:
subMap->getNodeNumElements() + offset < this->getLocalLength()
The given Map must be a subset Map of this MultiVector's row Map.

Definition at line 1417 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::RCP< MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > > Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::offsetViewNonConst ( const Teuchos::RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &  subMap,
size_t  offset 
) [inherited]

Return a non-const MultiVector view of a subset of rows.

Returns a non-const view of this MultiVector consisting of a subset of the rows, as specified by an offset and a subset Map of this MultiVector's current row Map.

Parameters:
InsubMap - The row Map for the new MultiVector.
Inoffset - The offset into the data of (*this).
Precondition:
subMap->getNodeNumElements() + offset < this->getLocalLength()
The given Map must be a subset Map of this MultiVector's row Map.

Definition at line 1456 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::RCP< const Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node > > Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::getVector ( size_t  j) const [inherited]

Return a Vector which is a const view of column j.

Definition at line 1643 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::RCP< Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node > > Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::getVectorNonConst ( size_t  j) [inherited]

Return a Vector which is a nonconst view of column j.

Definition at line 1668 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::ArrayRCP< const Scalar > Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::getData ( size_t  j) const [inherited]

Const view of the local values in a particular vector of this multivector.

Definition at line 1301 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::ArrayRCP< Scalar > Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::getDataNonConst ( size_t  j) [inherited]

View of the local values in a particular vector of this multivector.

Definition at line 1312 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::get1dCopy ( Teuchos::ArrayView< Scalar >  A,
size_t  LDA 
) const [inherited]

Fill the given array with a copy of this multivector's local values.

Parameters:
A[out] View of the array to fill. We consider A as a matrix with column-major storage.
LDA[in] Leading dimension of the matrix A.

Definition at line 1689 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::get2dCopy ( Teuchos::ArrayView< const Teuchos::ArrayView< Scalar > >  ArrayOfPtrs) const [inherited]

Fill the given array with a copy of this multivector's local values.

Parameters:
ArrayOfPtrs[out] Array of arrays, one for each column of the multivector. On output, we fill ArrayOfPtrs[j] with the data for column j of this multivector.

Definition at line 1724 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::ArrayRCP< const Scalar > Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::get1dView ( ) const [inherited]

Const persisting (1-D) view of this multivector's local values.

This method assumes that the columns of the multivector are stored contiguously. If not, this method throws std::runtime_error.

Definition at line 1758 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::ArrayRCP< Teuchos::ArrayRCP< const Scalar > > Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::get2dView ( ) const [inherited]

Return const persisting pointers to values.

Definition at line 1822 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::ArrayRCP< Scalar > Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::get1dViewNonConst ( ) [inherited]

Nonconst persisting (1-D) view of this multivector's local values.

This method assumes that the columns of the multivector are stored contiguously. If not, this method throws std::runtime_error.

Definition at line 1770 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::ArrayRCP< Teuchos::ArrayRCP< Scalar > > Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::get2dViewNonConst ( ) [inherited]

Return non-const persisting pointers to values.

Definition at line 1782 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
const Kokkos::MultiVector< Scalar, Node > & Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::getLocalMV ( ) const [inherited]

Return a const reference to the underlying Kokkos::MultiVector object (advanced use only)

Definition at line 2182 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Kokkos::MultiVector< Scalar, Node > & Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::getLocalMVNonConst ( ) [inherited]

Return a non-const reference to the underlying Kokkos::MultiVector object (advanced use only)

Definition at line 2188 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::dot ( const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &  A,
const Teuchos::ArrayView< Scalar > &  dots 
) const [inherited]

Compute dot product of each corresponding pair of vectors, dots[i] = this[i].dot(A[i])

Definition at line 674 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::abs ( const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &  A) [inherited]

Put element-wise absolute values of input Multi-vector in target: A = abs(this)

Definition at line 1167 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::reciprocal ( const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &  A) [inherited]

Put element-wise reciprocal values of input Multi-vector in target, this(i,j) = 1/A(i,j).

Definition at line 1120 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::scale ( const Scalar &  alpha) [inherited]

Scale the current values of a multi-vector, this = alpha*this.

Definition at line 1018 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::scale ( Teuchos::ArrayView< const Scalar >  alpha) [inherited]

Scale the current values of a multi-vector, this[j] = alpha[j]*this[j].

Definition at line 1048 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::scale ( const Scalar &  alpha,
const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &  A 
) [inherited]

Replace multi-vector values with scaled values of A, this = alpha*A.

Definition at line 1077 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::update ( const Scalar &  alpha,
const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &  A,
const Scalar &  beta 
) [inherited]

Update multi-vector values with scaled values of A, this = beta*this + alpha*A.

Definition at line 1205 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::update ( const Scalar &  alpha,
const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &  A,
const Scalar &  beta,
const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &  B,
const Scalar &  gamma 
) [inherited]

Update multi-vector with scaled values of A and B, this = gamma*this + alpha*A + beta*B.

Definition at line 1249 of file Tpetra_MultiVector_def.hpp.

template<class Scalar, class LocalOrdinal = int, class GlobalOrdinal = LocalOrdinal, class Node = Kokkos::DefaultNode::DefaultNodeType>
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::norm1 ( const Teuchos::ArrayView< typename Teuchos::ScalarTraits< Scalar >::magnitudeType > &  norms) const [inherited]

Compute 1-norm of each vector in multi-vector.

Definition at line 841 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::norm2 ( const Teuchos::ArrayView< typename Teuchos::ScalarTraits< Scalar >::magnitudeType > &  norms) const [inherited]

Compute 2-norm of each vector in multi-vector.

Definition at line 723 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::normInf ( const Teuchos::ArrayView< typename Teuchos::ScalarTraits< Scalar >::magnitudeType > &  norms) const [inherited]

Compute Inf-norm of each vector in multi-vector.

Definition at line 876 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::normWeighted ( const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &  weights,
const Teuchos::ArrayView< typename Teuchos::ScalarTraits< Scalar >::magnitudeType > &  norms 
) const [inherited]

Compute Weighted 2-norm (RMS Norm) of each vector in multi-vector.

Definition at line 769 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::meanValue ( const Teuchos::ArrayView< Scalar > &  means) const [inherited]

Compute mean (average) value of each vector in multi-vector.

Definition at line 911 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::multiply ( Teuchos::ETransp  transA,
Teuchos::ETransp  transB,
const Scalar &  alpha,
const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &  A,
const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &  B,
const Scalar &  beta 
) [inherited]

Matrix-matrix multiplication: this = beta*this + alpha*op(A)*op(B).

Definition at line 1863 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::elementWiseMultiply ( Scalar  scalarAB,
const Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &  A,
const MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > &  B,
Scalar  scalarThis 
) [inherited]

Element-wise multiply of a Vector A with a MultiVector B.

Forms this = scalarThis * this + scalarAB * B @ A where @ denotes element-wise multiplication. B must be the same shape (size and num-vectors) as this, while A is the same size but a single vector (column).

this = scalarThis * this(i,j) + scalarAB * B(i,j) * A(i,1) (A has only 1 column)

Definition at line 1994 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
size_t Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::getNumVectors ( ) const [inline, inherited]

Number of columns in the multivector.

Definition at line 661 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
size_t Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::getLocalLength ( ) const [inherited]

Local number of rows on the calling process.

Definition at line 397 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
global_size_t Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::getGlobalLength ( ) const [inherited]

Global number of rows in the multivector.

Definition at line 403 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
size_t Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::getStride ( ) const [inherited]

Stride between columns in the multivector.

This is only meaningful if isConstantStride() returns true.

Warning:
This may be different on different processes.

Definition at line 409 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
bool Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::isConstantStride ( ) const [inherited]

Whether this multivector has constant stride between columns.

Warning:
This may be different on different processes.

Definition at line 391 of file Tpetra_MultiVector_def.hpp.

template<class Scalar, class LocalOrdinal = int, class GlobalOrdinal = LocalOrdinal, class Node = Kokkos::DefaultNode::DefaultNodeType>
template<class T >
Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::getSubArrayRCP ( ArrayRCP< T >  arr,
size_t  j 
) const [protected, inherited]

Persisting view of j-th column in the given ArrayRCP.

This method considers isConstantStride(). The ArrayRCP may correspond either to a compute buffer or a host view.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
bool Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::checkSizes ( const DistObject< Scalar, LocalOrdinal, GlobalOrdinal, Node > &  sourceObj) [protected, virtual, inherited]

Whether data redistribution between sourceObj and this object is legal.

This method is called in DistObject::doTransfer() to check whether data redistribution between the two objects is legal.

Implements Tpetra::DistObject< Scalar, LocalOrdinal, GlobalOrdinal, Node >.

Definition at line 420 of file Tpetra_MultiVector_def.hpp.

virtual void Tpetra::DistObject< Scalar , LocalOrdinal, GlobalOrdinal, Node >::copyAndPermute ( const DistObject< Scalar , LocalOrdinal, GlobalOrdinal, Node > &  source,
size_t  numSameIDs,
const Teuchos::ArrayView< const LocalOrdinal > &  permuteToLIDs,
const Teuchos::ArrayView< const LocalOrdinal > &  permuteFromLIDs 
) [protected, pure virtual, inherited]

Perform copies and permutations that are local to this process.

Parameters:
source[in] On entry, the source object, from which we are distributing. We distribute to the destination object, which is *this object.
numSameIDs[in] The umber of elements that are the same on the source and destination (this) objects. These elements are owned by the same process in both the source and destination objects. No permutation occurs.
numPermuteIDs[in] The number of elements that are locally permuted between the source and destination objects.
permuteToLIDs[in] List of the elements that are permuted. They are listed by their LID in the destination object.
permuteFromLIDs[in] List of the elements that are permuted. They are listed by their LID in the source object.
virtual void Tpetra::DistObject< Scalar , LocalOrdinal, GlobalOrdinal, Node >::packAndPrepare ( const DistObject< Scalar , LocalOrdinal, GlobalOrdinal, Node > &  source,
const Teuchos::ArrayView< const LocalOrdinal > &  exportLIDs,
Teuchos::Array< Scalar > &  exports,
const Teuchos::ArrayView< size_t > &  numPacketsPerLID,
size_t &  constantNumPackets,
Distributor &  distor 
) [protected, pure virtual, inherited]

Perform any packing or preparation required for communication.

Parameters:
source[in] Source object for the redistribution.
exportLIDs[in] List of the entries (as local IDs in the source object) we will be sending to other images.
exports[out] On exit, the buffer for data to send.
numPacketsPerLID[out] On exit, numPacketsPerLID[i] contains the number of packets to be exported for exportLIDs[i]. If constantNumPackets is nonzero, you should use that instead, and not rely on numPacketsPerLID[i] being filled.
constantNumPackets[out] On exit, 0 if numPacketsPerLID has variable contents (different size for each LID). If nonzero, then it is expected that num-packets-per-LID is constant, and constantNumPackets holds that value.
distor[in] The Distributor object we are using.
virtual void Tpetra::DistObject< Scalar , LocalOrdinal, GlobalOrdinal, Node >::unpackAndCombine ( const Teuchos::ArrayView< const LocalOrdinal > &  importLIDs,
const Teuchos::ArrayView< const Scalar > &  imports,
const Teuchos::ArrayView< size_t > &  numPacketsPerLID,
size_t  constantNumPackets,
Distributor &  distor,
CombineMode  CM 
) [protected, pure virtual, inherited]

Perform any unpacking and combining after communication.

Parameters:
importLIDs[in] List of the entries (as LIDs in the destination object) we received from other images.
imports[in] Buffer containing data we received.
numPacketsPerLID[in] numPacketsPerLID[i] contains the number of packets imported for importLIDs[i].
constantNumPackets[in] If nonzero, then numPacketsPerLID is constant (same value in all entries) and constantNumPackets is that value. If zero, use numPacketsPerLID[i] instead.
distor[in] The Distributor object we are using.
CM[in] The combine mode to use when combining the imported entries with existing entries.
template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::createViews ( ) const [protected, virtual, inherited]

Hook for creating a const view.

doTransfer() calls this on the source object. By default, it does nothing, but the source object can use this as a hint to fetch data from a compute buffer on an off-CPU device (such as a GPU) into host memory.

Reimplemented from Tpetra::DistObject< Scalar, LocalOrdinal, GlobalOrdinal, Node >.

Definition at line 2282 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::createViewsNonConst ( Kokkos::ReadWriteOption  rwo) [protected, virtual, inherited]

Hook for creating a nonconst view.

doTransfer() calls this on the destination (*this) object. By default, it does nothing, but the destination object can use this as a hint to fetch data from a compute buffer on an off-CPU device (such as a GPU) into host memory.

Parameters:
rwo[in] Whether to create a write-only or a read-and-write view. For Kokkos Node types where compute buffers live in a separate memory space (e.g., in the device memory of a discrete accelerator like a GPU), a write-only view only requires copying from host memory to the compute buffer, whereas a read-and-write view requires copying both ways (once to read, from the compute buffer to host memory, and once to write, back to the compute buffer).

Reimplemented from Tpetra::DistObject< Scalar, LocalOrdinal, GlobalOrdinal, Node >.

Definition at line 2310 of file Tpetra_MultiVector_def.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
void Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::releaseViews ( ) const [protected, virtual, inherited]

Hook for releasing views.

doTransfer() calls this on both the source and destination objects, once it no longer needs to access that object's data. By default, this method does nothing. Implementations may use this as a hint to free host memory which is a view of a compute buffer, once the host memory view is no longer needed. Some implementations may prefer to mirror compute buffers in host memory; for these implementations, releaseViews() may do nothing.

Reimplemented from Tpetra::DistObject< Scalar, LocalOrdinal, GlobalOrdinal, Node >.

Definition at line 2336 of file Tpetra_MultiVector_def.hpp.

void Tpetra::DistObject< Scalar , LocalOrdinal, GlobalOrdinal, Node >::doImport ( const DistObject< Scalar , LocalOrdinal, GlobalOrdinal, Node > &  source,
const Import< LocalOrdinal, GlobalOrdinal, Node > &  importer,
CombineMode  CM 
) [inherited]

Import using an Import object ("forward mode").

void Tpetra::DistObject< Scalar , LocalOrdinal, GlobalOrdinal, Node >::doImport ( const DistObject< Scalar , LocalOrdinal, GlobalOrdinal, Node > &  source,
const Export< LocalOrdinal, GlobalOrdinal, Node > &  exporter,
CombineMode  CM 
) [inherited]

Import using an Export object ("reverse mode").

void Tpetra::DistObject< Scalar , LocalOrdinal, GlobalOrdinal, Node >::doExport ( const DistObject< Scalar , LocalOrdinal, GlobalOrdinal, Node > &  dest,
const Export< LocalOrdinal, GlobalOrdinal, Node > &  exporter,
CombineMode  CM 
) [inherited]

Export using an Export object ("forward mode").

void Tpetra::DistObject< Scalar , LocalOrdinal, GlobalOrdinal, Node >::doExport ( const DistObject< Scalar , LocalOrdinal, GlobalOrdinal, Node > &  dest,
const Import< LocalOrdinal, GlobalOrdinal, Node > &  importer,
CombineMode  CM 
) [inherited]

Export using an Import object ("reverse mode").

bool Tpetra::DistObject< Scalar , LocalOrdinal, GlobalOrdinal, Node >::isDistributed ( ) const [inline, inherited]

Whether this is a globally distributed object.

For a definition of "globally distributed" (and its opposite, "locally replicated"), see the documentation of Map's isDistributed() method.

const Teuchos::RCP<const Map<LocalOrdinal,GlobalOrdinal,Node> >& Tpetra::DistObject< Scalar , LocalOrdinal, GlobalOrdinal, Node >::getMap ( ) const [inline, inherited]

The Map with which this DistObject was constructed.

Definition at line 172 of file Tpetra_DistObject.hpp.

void Tpetra::DistObject< Scalar , LocalOrdinal, GlobalOrdinal, Node >::print ( std::ostream &  os) const [inherited]

Print this object to the given output stream.

We generally assume that all MPI processes can print to the given stream.

virtual void Tpetra::DistObject< Scalar , LocalOrdinal, GlobalOrdinal, Node >::doTransfer ( const DistObject< Scalar , LocalOrdinal, GlobalOrdinal, Node > &  source,
CombineMode  CM,
size_t  numSameIDs,
const Teuchos::ArrayView< const LocalOrdinal > &  permuteToLIDs,
const Teuchos::ArrayView< const LocalOrdinal > &  permuteFromLIDs,
const Teuchos::ArrayView< const LocalOrdinal > &  remoteLIDs,
const Teuchos::ArrayView< const LocalOrdinal > &  exportLIDs,
Distributor &  distor,
ReverseOption  revOp 
) [protected, virtual, inherited]

Redistribute data across memory images.

Parameters:
source[in] The source object, to redistribute into the destination object, which is *this object.
CM[in] The combine mode that describes how to combine values that map to the same global ID on the same process.
permuteToLIDs[in] See copyAndPermute().
permuteFromLIDs[in] See copyAndPermute().
remoteLIDs[in] List of entries (as local IDs) in the destination object to receive from other processes.
exportLIDs[in] See packAndPrepare().
distor[in/out] The Distributor object that knows how to redistribute data.
revOp[in] Whether to do a forward or reverse mode redistribution.

Friends And Related Function Documentation

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::RCP< MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > > createMultiVectorFromView ( const Teuchos::RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &  map,
const Teuchos::ArrayRCP< Scalar > &  view,
size_t  LDA,
size_t  numVectors 
) [related]

Nonmember MultiVector constructor with view semantics using user-allocated data.

Warning:
This function is not supported for all Kokkos Node types. Specifically, it is not typically supported for GPU accelerator-based nodes like Kokkos::ThrustGPUNode.
Parameters:
map[in] The Map describing the distribution of rows of the multivector.
view[in/out] A pointer to column-major dense matrix data. This will be the multivector's data on the calling process. The multivector will use the pointer directly, without copying.
LDA[in] The leading dimension (a.k.a. "stride") of the column-major input data.
numVectors[in] The number of columns in the input data. This will be the number of vectors in the returned multivector.

To Kokkos and Tpetra developers: If you add a new Kokkos Node type that is a host Node type (where memory lives in user space, not in a different space as on a GPU), you will need to add a specialization of Tpetra::details::ViewAccepter for your new Node type.

Definition at line 959 of file Tpetra_MultiVector_decl.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
RCP< Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node > > createVector ( const RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &  map) [related]

Non-member function to create a Vector from a specified Map.

Definition at line 182 of file Tpetra_Vector_decl.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
RCP< Vector< Scalar, LocalOrdinal, GlobalOrdinal, Node > > createVectorFromView ( const RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &  map,
const ArrayRCP< Scalar > &  view 
) [related]

Non-member function to create a Vector with view semantics using user-allocated data.

This use case is not supported for all nodes. Specifically, it is not typically supported for accelerator-based nodes like Kokkos::ThrustGPUNode.

Definition at line 194 of file Tpetra_Vector_decl.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
Teuchos::RCP< MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node > > createMultiVector ( const Teuchos::RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &  map,
size_t  numVectors 
) [related]

Nonmember MultiVector constructor: make a MultiVector from a given Map.

Parameters:
map[in] Map describing the distribution of rows of the resulting MultiVector.
numVectors[in] Number of columns of the resulting MultiVector.

Definition at line 922 of file Tpetra_MultiVector_decl.hpp.

Member Data Documentation

template<class Scalar, class LocalOrdinal = int, class GlobalOrdinal = LocalOrdinal, class Node = Kokkos::DefaultNode::DefaultNodeType>
KMV Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::lclMV_ [protected, inherited]

The Kokkos::MultiVector containing the compute buffer of data.

Definition at line 792 of file Tpetra_MultiVector_decl.hpp.

template<class Scalar, class LocalOrdinal = int, class GlobalOrdinal = LocalOrdinal, class Node = Kokkos::DefaultNode::DefaultNodeType>
Array<size_t> Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::whichVectors_ [protected, inherited]

Indices of columns this multivector is viewing.

If this array has nonzero size, then this multivector is a view of another multivector (the "original" multivector). In that case, whichVectors_ contains the indices of the columns of the original multivector. Furthermore, isConstantStride() returns false in this case.

If this array has zero size, then this multivector is not a view of any other multivector. Furthermore, the stride between columns of this multivector is a constant: thus, isConstantStride() returns true.

Definition at line 806 of file Tpetra_MultiVector_decl.hpp.

template<class Scalar, class LocalOrdinal = int, class GlobalOrdinal = LocalOrdinal, class Node = Kokkos::DefaultNode::DefaultNodeType>
ArrayRCP<Scalar> Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::ncview_ [mutable, protected, inherited]

Nonconst host view created in createViewsNonConst().

Definition at line 894 of file Tpetra_MultiVector_decl.hpp.

template<class Scalar, class LocalOrdinal = int, class GlobalOrdinal = LocalOrdinal, class Node = Kokkos::DefaultNode::DefaultNodeType>
ArrayRCP<const Scalar> Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::cview_ [mutable, protected, inherited]

Const host view created in createViews().

Definition at line 897 of file Tpetra_MultiVector_decl.hpp.

template<class Scalar, class LocalOrdinal = int, class GlobalOrdinal = LocalOrdinal, class Node = Kokkos::DefaultNode::DefaultNodeType>
bool Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::releaseViewsRaisedEfficiencyWarning_ [mutable, protected, inherited]

Whether releaseViews() has yet raised an efficiency warning.

Definition at line 904 of file Tpetra_MultiVector_decl.hpp.

template<class Scalar, class LocalOrdinal = int, class GlobalOrdinal = LocalOrdinal, class Node = Kokkos::DefaultNode::DefaultNodeType>
bool Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::createViewsRaisedEfficiencyWarning_ [mutable, protected, inherited]

Whether createViews() has yet raised an efficiency warning.

Definition at line 906 of file Tpetra_MultiVector_decl.hpp.

template<class Scalar, class LocalOrdinal = int, class GlobalOrdinal = LocalOrdinal, class Node = Kokkos::DefaultNode::DefaultNodeType>
bool Tpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >::createViewsNonConstRaisedEfficiencyWarning_ [mutable, protected, inherited]

Whether createViewsNonConst() has yet raised an efficiency warning.

Definition at line 908 of file Tpetra_MultiVector_decl.hpp.

Teuchos::RCP<const Map<LocalOrdinal,GlobalOrdinal,Node> > Tpetra::DistObject< Scalar , LocalOrdinal, GlobalOrdinal, Node >::map_ [protected, inherited]

The Map over which this object is distributed.

Definition at line 390 of file Tpetra_DistObject.hpp.

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