Identity< ValueType > Class Template Reference

Identity&lt; ValueType &gt; Class Template Reference#

Reference API: gko::batch::matrix::Identity< ValueType > Class Template Reference
Reference API

#include <ginkgo/core/matrix/batch_identity.hpp>

Inheritance diagram for gko::batch::matrix::Identity< ValueType >:
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Public Types

using value_type = ValueType
 
using index_type = int32
 
using unbatch_type = gko::matrix::Identity< ValueType >
 
using absolute_type = remove_complex< Identity >
 
using complex_type = to_complex< Identity >
 
- Public Types inherited from gko::EnablePolymorphicAssignment< ConcreteBatchLinOp >
using result_type = ConcreteBatchLinOp
 
- Public Types inherited from gko::ConvertibleTo< ResultType >
using result_type = ResultType
 

Public Member Functions

Identityapply (ptr_param< const MultiVector< value_type > > b, ptr_param< MultiVector< value_type > > x)
 
Identityapply (ptr_param< const MultiVector< value_type > > alpha, ptr_param< const MultiVector< value_type > > b, ptr_param< const MultiVector< value_type > > beta, ptr_param< MultiVector< value_type > > x)
 
const Identityapply (ptr_param< const MultiVector< value_type > > b, ptr_param< MultiVector< value_type > > x) const
 
const Identityapply (ptr_param< const MultiVector< value_type > > alpha, ptr_param< const MultiVector< value_type > > b, ptr_param< const MultiVector< value_type > > beta, ptr_param< MultiVector< value_type > > x) const
 
- Public Member Functions inherited from gko::EnableAbstractPolymorphicObject< AbstractObject, PolymorphicBase >
std::unique_ptr< AbstractObject > create_default (std::shared_ptr< const Executor > exec) const
 
std::unique_ptr< AbstractObject > create_default () const
 
std::unique_ptr< AbstractObject > clone (std::shared_ptr< const Executor > exec) const
 
std::unique_ptr< AbstractObject > clone () const
 
AbstractObject * copy_from (const PolymorphicObject *other)
 
template<typename Derived >
std::enable_if_t< std::is_base_of< PolymorphicObject, std::decay_t< Derived > >::value, AbstractObject > * copy_from (std::unique_ptr< Derived > &&other)
 
template<typename Derived >
std::enable_if_t< std::is_base_of< PolymorphicObject, std::decay_t< Derived > >::value, AbstractObject > * copy_from (const std::unique_ptr< Derived > &other)
 
AbstractObject * copy_from (const std::shared_ptr< const PolymorphicObject > &other)
 
AbstractObject * move_from (ptr_param< PolymorphicObject > other)
 
AbstractObject * clear ()
 
- Public Member Functions inherited from gko::PolymorphicObject
PolymorphicObjectoperator= (const PolymorphicObject &)
 
std::unique_ptr< PolymorphicObjectcreate_default (std::shared_ptr< const Executor > exec) const
 
std::unique_ptr< PolymorphicObjectcreate_default () const
 
std::unique_ptr< PolymorphicObjectclone (std::shared_ptr< const Executor > exec) const
 
std::unique_ptr< PolymorphicObjectclone () const
 
PolymorphicObjectcopy_from (const PolymorphicObject *other)
 
template<typename Derived , typename Deleter >
std::enable_if_t< std::is_base_of< PolymorphicObject, std::decay_t< Derived > >::value, PolymorphicObject > * copy_from (std::unique_ptr< Derived, Deleter > &&other)
 
template<typename Derived , typename Deleter >
std::enable_if_t< std::is_base_of< PolymorphicObject, std::decay_t< Derived > >::value, PolymorphicObject > * copy_from (const std::unique_ptr< Derived, Deleter > &other)
 
PolymorphicObjectcopy_from (const std::shared_ptr< const PolymorphicObject > &other)
 
PolymorphicObjectmove_from (ptr_param< PolymorphicObject > other)
 
PolymorphicObjectclear ()
 
std::shared_ptr< const Executorget_executor () const noexcept
 
- Public Member Functions inherited from gko::log::EnableLogging< PolymorphicObject >
void add_logger (std::shared_ptr< const Logger > logger) override
 
void remove_logger (const Logger *logger) override
 
void remove_logger (ptr_param< const Logger > logger)
 
const std::vector< std::shared_ptr< const Logger > > & get_loggers () const override
 
void clear_loggers () override
 
- Public Member Functions inherited from gko::log::Loggable
void remove_logger (ptr_param< const Logger > logger)
 
- Public Member Functions inherited from gko::EnablePolymorphicAssignment< ConcreteBatchLinOp >
void convert_to (result_type *result) const override
 
void move_to (result_type *result) override
 
- Public Member Functions inherited from gko::ConvertibleTo< ResultType >
virtual void convert_to (result_type *result) const =0
 
void convert_to (ptr_param< result_type > result) const
 
virtual void move_to (result_type *result)=0
 
void move_to (ptr_param< result_type > result)
 

Static Public Member Functions

static std::unique_ptr< Identitycreate (std::shared_ptr< const Executor > exec, const batch_dim< 2 > &size=batch_dim< 2 >{})
 

Friends

class EnablePolymorphicObject< Identity, BatchLinOp >
 

Additional Inherited Members

- Protected Member Functions inherited from gko::EnablePolymorphicObject< ConcreteObject, PolymorphicBase >
std::unique_ptr< PolymorphicObjectcreate_default_impl (std::shared_ptr< const Executor > exec) const override
 
PolymorphicObjectcopy_from_impl (const PolymorphicObject *other) override
 
PolymorphicObjectcopy_from_impl (std::unique_ptr< PolymorphicObject > other) override
 
PolymorphicObjectmove_from_impl (PolymorphicObject *other) override
 
PolymorphicObjectmove_from_impl (std::unique_ptr< PolymorphicObject > other) override
 
PolymorphicObjectclear_impl () override
 
- Protected Member Functions inherited from gko::PolymorphicObject
 PolymorphicObject (std::shared_ptr< const Executor > exec)
 
 PolymorphicObject (const PolymorphicObject &other)
 
- Protected Member Functions inherited from gko::log::EnableLogging< PolymorphicObject >
void log (Params &&... params) const
 
- Protected Attributes inherited from gko::log::EnableLogging< PolymorphicObject >
std::vector< std::shared_ptr< const Logger > > loggers_
 

Detailed Description

template<typename ValueType = default_precision>
class gko::batch::matrix::Identity< ValueType >

The batch Identity matrix, which represents a batch of Identity matrices.

Template Parameters
ValueTypeprecision of matrix elements

Member Function Documentation

◆ apply() [1/4]

template<typename ValueType = default_precision>
Identity * gko::batch::matrix::Identity< ValueType >::apply ( ptr_param< const MultiVector< value_type > >  alpha,
ptr_param< const MultiVector< value_type > >  b,
ptr_param< const MultiVector< value_type > >  beta,
ptr_param< MultiVector< value_type > >  x 
)

Apply the matrix to a multi-vector with a linear combination of the given input vector. Represents the matrix vector multiplication, x = alpha * I

  • b + beta * x, where x and b are both multi-vectors.
Parameters
alphathe scalar to scale the matrix-vector product with
bthe multi-vector to be applied to
betathe scalar to scale the x vector with
xthe output multi-vector

◆ apply() [2/4]

template<typename ValueType = default_precision>
const Identity * gko::batch::matrix::Identity< ValueType >::apply ( ptr_param< const MultiVector< value_type > >  alpha,
ptr_param< const MultiVector< value_type > >  b,
ptr_param< const MultiVector< value_type > >  beta,
ptr_param< MultiVector< value_type > >  x 
) const

◆ apply() [3/4]

template<typename ValueType = default_precision>
Identity * gko::batch::matrix::Identity< ValueType >::apply ( ptr_param< const MultiVector< value_type > >  b,
ptr_param< MultiVector< value_type > >  x 
)

Apply the matrix to a multi-vector. Represents the matrix vector multiplication, x = I * b, where x and b are both multi-vectors.

Parameters
bthe multi-vector to be applied to
xthe output multi-vector

◆ apply() [4/4]

template<typename ValueType = default_precision>
const Identity * gko::batch::matrix::Identity< ValueType >::apply ( ptr_param< const MultiVector< value_type > >  b,
ptr_param< MultiVector< value_type > >  x 
) const

◆ create()

template<typename ValueType = default_precision>
static std::unique_ptr< Identity > gko::batch::matrix::Identity< ValueType >::create ( std::shared_ptr< const Executor exec,
const batch_dim< 2 > &  size = batch_dim< 2 >{} 
)
static

Creates an Identity matrix of the specified size.

Parameters
execExecutor associated to the matrix
sizesize of the batch matrices in a batch_dim object
Returns
A smart pointer to the newly created matrix.

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