Hypre::HyprePreconditioner< M, X, Y, Comm > Class Template Reference

Wrapper for Hypre's BoomerAMG preconditioner. More...

#include <HyprePreconditioner.hpp>

Inheritance diagram for Hypre::HyprePreconditioner< M, X, Y, Comm >:

Public Types
using	matrix_type = M
	The matrix type the preconditioner is for.
using	matrix_field_type = typename M::field_type
	The field type of the matrix.
using	domain_type = X
	The domain type of the preconditioner.
using	range_type = Y
	The range type of the preconditioner.
using	vector_field_type = typename X::field_type
	The field type of the vectors.

Public Member Functions
	HyprePreconditioner (const M &A, const Opm::PropertyTree prm, const Comm &comm)
	Constructor for the HyprePreconditioner class. More...
	~HyprePreconditioner ()
	Destructor for HyprePreconditioner. More...
void	update () override
	Updates the preconditioner with the current matrix values. More...
void	pre (X &v, Y &) override
	Pre-processing step before applying the preconditioner. More...
void	apply (X &v, const Y &d) override
	Applies the preconditioner to a vector. More...
void	post (X &) override
	Post-processing step after applying the preconditioner. More...
Dune::SolverCategory::Category	category () const override
	Returns the solver category. More...
bool	hasPerfectUpdate () const override
	Checks if the preconditioner has a perfect update. More...

Detailed Description

template<class M, class X, class Y, class Comm>
class Hypre::HyprePreconditioner< M, X, Y, Comm >

Wrapper for Hypre's BoomerAMG preconditioner.

This class provides an interface to the BoomerAMG preconditioner from the Hypre library. It is designed to work with matrices, update vectors, and defect vectors specified by the template parameters. The HypreInterface class provides a unified interface to Hypre's functionality, allowing for easy switching between CPU and GPU input data types and backend acceleration.

Supports four use cases:

1. Input type is CPU and backend acceleration is CPU
2. Input type is CPU and backend acceleration is GPU
3. Input type is GPU and backend acceleration is GPU
4. Input type is GPU and backend acceleration is CPU

Template Parameters

M	The matrix type
X	The vector type for the solution
Y	The vector type for the right-hand side

Constructor & Destructor Documentation

HyprePreconditioner()

template<class M , class X , class Y , class Comm >

Hypre::HyprePreconditioner< M, X, Y, Comm >::HyprePreconditioner ( const M &  A, const Opm::PropertyTree  prm, const Comm &  comm  )

inline

Constructor for the HyprePreconditioner class.

Initializes the preconditioner with the given matrix and property tree.

Parameters

A	The matrix for which the preconditioner is constructed.
prm	The property tree containing configuration parameters.
comm	Parallel communicator.

~HyprePreconditioner()

template<class M , class X , class Y , class Comm >

Hypre::HyprePreconditioner< M, X, Y, Comm >::~HyprePreconditioner ( )

inline

Destructor for HyprePreconditioner.

Cleans up resources allocated by the preconditioner.

Member Function Documentation

apply()

template<class M , class X , class Y , class Comm >

void Hypre::HyprePreconditioner< M, X, Y, Comm >::apply ( X &  v, const Y &  d  )

inlineoverride

Applies the preconditioner to a vector.

Performs one AMG V-cycle to solve the system. Involves uploading vectors to Hypre, applying the preconditioner, and transferring the result back to the vector.

Parameters

v	The update vector.
d	The defect vector.

category()

template<class M , class X , class Y , class Comm >

Dune::SolverCategory::Category Hypre::HyprePreconditioner< M, X, Y, Comm >::category ( ) const

inlineoverride

Returns the solver category.

Returns

The solver category, which is sequential.

hasPerfectUpdate()

template<class M , class X , class Y , class Comm >

bool Hypre::HyprePreconditioner< M, X, Y, Comm >::hasPerfectUpdate ( ) const

inlineoverridevirtual

Checks if the preconditioner has a perfect update.

Returns

True, indicating that the preconditioner can be perfectly updated.

Implements Dune::PreconditionerWithUpdate< X, Y >.

post()

template<class M , class X , class Y , class Comm >

void Hypre::HyprePreconditioner< M, X, Y, Comm >::post ( X &  )

inlineoverride

Post-processing step after applying the preconditioner.

This method is currently a no-op.

Parameters

v	The update vector.

pre()

template<class M , class X , class Y , class Comm >

void Hypre::HyprePreconditioner< M, X, Y, Comm >::pre ( X &  v, Y &    )

inlineoverride

Pre-processing step before applying the preconditioner.

This method is currently a no-op.

Parameters

v	The update vector.
d	The defect vector.

update()

template<class M , class X , class Y , class Comm >

void Hypre::HyprePreconditioner< M, X, Y, Comm >::update ( )

inlineoverridevirtual

Updates the preconditioner with the current matrix values.

This method should be called whenever the matrix values change.

Implements Dune::PreconditionerWithUpdate< X, Y >.

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

• opm/simulators/linalg/HyprePreconditioner.hpp