Opm::gpuistl::PreconditionerAdapter< X, Y, CudaPreconditionerType > Class Template Reference

Makes a CUDA preconditioner available to a CPU simulator. More...

#include <PreconditionerAdapter.hpp>

Inheritance diagram for Opm::gpuistl::PreconditionerAdapter< X, Y, CudaPreconditionerType >:

Public Types
using	domain_type = X
	The domain type of the preconditioner.
using	range_type = Y
	The range type of the preconditioner.
using	field_type = typename X::field_type
	The field type of the preconditioner.

Public Member Functions
	PreconditionerAdapter (std::shared_ptr< CudaPreconditionerType > preconditioner)
	Constructor.
virtual void	pre (X &x, Y &b) override
	Prepare the preconditioner.
virtual void	apply (X &v, const Y &d) override
	Apply the preconditoner.
virtual void	post (X &x) override
	Clean up.
Dune::SolverCategory::Category	category () const override
	Category of the preconditioner (see SolverCategory::Category).
virtual void	update () override
	Calls update on the underlying CUDA preconditioner.
virtual std::shared_ptr< Dune::PreconditionerWithUpdate< GpuVector< field_type >, GpuVector< field_type > > >	getUnderlyingPreconditioner () override
	getUnderlyingPreconditioner gets the underlying preconditioner (preconditioner being held)
virtual bool	hasPerfectUpdate () const override

Static Public Member Functions
static constexpr bool	shouldCallPre ()
static constexpr bool	shouldCallPost ()

Detailed Description

template<class X, class Y, class CudaPreconditionerType>
class Opm::gpuistl::PreconditionerAdapter< X, Y, CudaPreconditionerType >

Makes a CUDA preconditioner available to a CPU simulator.

The use case for this adapter is to use a CUDA preconditioner during a linear solver that works on the CPU. The motivation for this is benchmarking new preconditioners on the GPU.

Template Parameters

X	the domain type (should be on the CPU). Typicall a Dune::BlockVector
Y	the range type (should be on the CPU). Typicall a Dune::BlockVector
CudaPreconditionerType	the preconditioner taking GpuVector<real_type> as arguments to apply

Constructor & Destructor Documentation

PreconditionerAdapter()

template<class X, class Y, class CudaPreconditionerType>

Opm::gpuistl::PreconditionerAdapter< X, Y, CudaPreconditionerType >::PreconditionerAdapter ( std::shared_ptr< CudaPreconditionerType > preconditioner )

inlineexplicit

Constructor.

Constructor gets all parameters to operate the prec.

Parameters

preconditioner

Preconditioner to use in adapter

Member Function Documentation

apply()

template<class X, class Y, class CudaPreconditionerType>

virtual void Opm::gpuistl::PreconditionerAdapter< X, Y, CudaPreconditionerType >::apply ( X & v, const Y & d )

inlineoverridevirtual

Apply the preconditoner.

getUnderlyingPreconditioner()

template<class X, class Y, class CudaPreconditionerType>

virtual std::shared_ptr< Dune::PreconditionerWithUpdate< GpuVector< field_type >, GpuVector< field_type > > > Opm::gpuistl::PreconditionerAdapter< X, Y, CudaPreconditionerType >::getUnderlyingPreconditioner ( )

inlineoverridevirtual

getUnderlyingPreconditioner gets the underlying preconditioner (preconditioner being held)

Implements Opm::gpuistl::PreconditionerHolder< GpuVector< X::field_type >, GpuVector< Y::field_type > >.

hasPerfectUpdate()

template<class X, class Y, class CudaPreconditionerType>

virtual bool Opm::gpuistl::PreconditionerAdapter< X, Y, CudaPreconditionerType >::hasPerfectUpdate ( ) const

inlineoverridevirtual

Implements Dune::PreconditionerWithUpdate< X, Y >.

post()

template<class X, class Y, class CudaPreconditionerType>

virtual void Opm::gpuistl::PreconditionerAdapter< X, Y, CudaPreconditionerType >::post ( X & x )

inlineoverridevirtual

Clean up.

Currently not supported.

pre()

template<class X, class Y, class CudaPreconditionerType>

virtual void Opm::gpuistl::PreconditionerAdapter< X, Y, CudaPreconditionerType >::pre ( X & x, Y & b )

inlineoverridevirtual

Prepare the preconditioner.

Currently not supported.

update()

template<class X, class Y, class CudaPreconditionerType>

virtual void Opm::gpuistl::PreconditionerAdapter< X, Y, CudaPreconditionerType >::update ( )

inlineoverridevirtual

Calls update on the underlying CUDA preconditioner.

Implements Dune::PreconditionerWithUpdate< X, Y >.

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

• opm/simulators/linalg/gpuistl/PreconditionerAdapter.hpp