Ginkgo Generated from branch based on main. Ginkgo version 1.10.0
A numerical linear algebra library targeting many-core architectures
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gko::experimental::reorder::Amd< IndexType > Class Template Reference

Computes a Approximate Minimum Degree (AMD) reordering of an input matrix. More...

#include <ginkgo/core/reorder/amd.hpp>

Inheritance diagram for gko::experimental::reorder::Amd< IndexType >:
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Collaboration diagram for gko::experimental::reorder::Amd< IndexType >:
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Classes

struct  parameters_type

Public Types

using index_type = IndexType
using permutation_type = matrix::Permutation<index_type>
Public Types inherited from gko::EnablePolymorphicAssignment< Amd< int32 > >
using result_type
Public Types inherited from gko::ConvertibleTo< Amd< int32 > >
using result_type

Public Member Functions

const parameters_typeget_parameters ()
 Returns the parameters used to construct the factory.
std::unique_ptr< permutation_typegenerate (std::shared_ptr< const LinOp > system_matrix) const
 Creates a new product from the given components.
Public Member Functions inherited from gko::EnableAbstractPolymorphicObject< Amd< int32 >, LinOpFactory >
std::unique_ptr< Amd< int32 > > create_default (std::shared_ptr< const Executor > exec) const
std::unique_ptr< Amd< int32 > > clone (std::shared_ptr< const Executor > exec) const
Amd< int32 > * copy_from (const PolymorphicObject *other)
Amd< int32 > * move_from (ptr_param< PolymorphicObject > other)
Amd< int32 > * clear ()
Public Member Functions inherited from gko::LinOpFactory
std::unique_ptr< LinOpgenerate (std::shared_ptr< const LinOp > input) const
Public Member Functions inherited from gko::PolymorphicObject
PolymorphicObjectoperator= (const PolymorphicObject &)
std::unique_ptr< PolymorphicObjectcreate_default (std::shared_ptr< const Executor > exec) const
 Creates a new "default" object of the same dynamic type as this object.
std::unique_ptr< PolymorphicObjectcreate_default () const
 Creates a new "default" object of the same dynamic type as this object.
std::unique_ptr< PolymorphicObjectclone (std::shared_ptr< const Executor > exec) const
 Creates a clone of the object.
std::unique_ptr< PolymorphicObjectclone () const
 Creates a clone of the object.
PolymorphicObjectcopy_from (const PolymorphicObject *other)
 Copies another object into this object.
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)
 Moves another object into this object.
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)
 Copies another object into this object.
PolymorphicObjectcopy_from (const std::shared_ptr< const PolymorphicObject > &other)
 Copies another object into this object.
PolymorphicObjectmove_from (ptr_param< PolymorphicObject > other)
 Moves another object into this object.
PolymorphicObjectclear ()
 Transforms the object into its default state.
std::shared_ptr< const Executorget_executor () const noexcept
 Returns the Executor of the object.
Public Member Functions inherited from gko::log::EnableLogging< PolymorphicObject >
void add_logger (std::shared_ptr< const Logger > logger) override
 Adds a new logger to the list of subscribed loggers.
void remove_logger (const Logger *logger) override
 Removes a logger from the list of subscribed loggers.
const std::vector< std::shared_ptr< const Logger > > & get_loggers () const override
 Returns the vector containing all loggers registered at this object.
void clear_loggers () override
 Remove all loggers registered at this object.
Public Member Functions inherited from gko::log::Loggable
void remove_logger (ptr_param< const Logger > logger)
Public Member Functions inherited from gko::EnablePolymorphicAssignment< Amd< int32 > >
void convert_to (result_type *result) const override
void move_to (result_type *result) override

Static Public Member Functions

static parameters_type build ()
 Creates a new parameter_type to set up the factory.

Friends

class EnablePolymorphicObject< Amd< IndexType >, LinOpFactory >
class enable_parameters_type< parameters_type, Amd< IndexType > >

Detailed Description

template<typename IndexType = int32>
class gko::experimental::reorder::Amd< IndexType >

Computes a Approximate Minimum Degree (AMD) reordering of an input matrix.

Template Parameters
IndexTypethe type used to store sparsity pattern indices of the system matrix

Member Function Documentation

◆ generate()

template<typename IndexType = int32>
std::unique_ptr< permutation_type > gko::experimental::reorder::Amd< IndexType >::generate ( std::shared_ptr< const LinOp > system_matrix) const

Creates a new product from the given components.

The method will create an ComponentsType object from the arguments of this method, and pass it to the generate_impl() function which will create a new AbstractProductType.

Template Parameters
Argstypes of arguments passed to the constructor of ComponentsType
Parameters
argsarguments passed to the constructor of ComponentsType
Returns
an instance of AbstractProductType
Note
This function overrides the default LinOpFactory::generate to return a Permutation instead of a generic LinOp, which would need to be cast to Permutation again to access its indices. It is only necessary because smart pointers aren't covariant.

◆ get_parameters()

template<typename IndexType = int32>
const parameters_type & gko::experimental::reorder::Amd< IndexType >::get_parameters ( )
inline

Returns the parameters used to construct the factory.

Returns
the parameters used to construct the factory.

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