CUDAWrappers::SolverDirect< Number > Class Template Reference

#include <deal.II/lac/cuda_solver_direct.h>

Classes
struct	AdditionalData

Public Member Functions
	SolverDirect (const Utilities::CUDA::Handle &handle, SolverControl &cn, const AdditionalData &data=AdditionalData())
virtual	~SolverDirect ()=default
void	solve (const SparseMatrix< Number > &A, LinearAlgebra::CUDAWrappers::Vector< Number > &x, const LinearAlgebra::CUDAWrappers::Vector< Number > &b)
SolverControl &	control () const

Private Attributes
const Utilities::CUDA::Handle &	cuda_handle
SolverControl &	solver_control
const AdditionalData	additional_data

Detailed Description

template<typename Number>
class CUDAWrappers::SolverDirect< Number >

Direct solvers. These solvers call cuSOLVER underneath.

Note

Instantiations for this template are provided for <float> and <double>.

Author

Bruno Turcksin

Date

2018

Definition at line 43 of file cuda_solver_direct.h.

Constructor & Destructor Documentation

template<typename Number >

CUDAWrappers::SolverDirect< Number >::SolverDirect	(	const Utilities::CUDA::Handle &	handle,
		SolverControl &	cn,
		const AdditionalData &	data = AdditionalData()
	)

Constructor. Takes the solver control object and creates the solver.

template<typename Number >

virtual CUDAWrappers::SolverDirect< Number >::~SolverDirect ( )

virtualdefault

Destructor.

Member Function Documentation

template<typename Number >

void CUDAWrappers::SolverDirect< Number >::solve	(	const SparseMatrix< Number > &	A,
		LinearAlgebra::CUDAWrappers::Vector< Number > &	x,
		const LinearAlgebra::CUDAWrappers::Vector< Number > &	b
	)

Solve the linear system Ax=b.

template<typename Number >

SolverControl& CUDAWrappers::SolverDirect< Number >::control

(

)

const

Access to object that controls convergence.

Member Data Documentation

template<typename Number >

const Utilities::CUDA::Handle& CUDAWrappers::SolverDirect< Number >::cuda_handle

private

Handle

Definition at line 99 of file cuda_solver_direct.h.

template<typename Number >

SolverControl& CUDAWrappers::SolverDirect< Number >::solver_control

private

Reference to the object that controls convergence of the iterative solver. In fact, for these CUDA wrappers, cuSOLVER and cuSPARSE do so themselve, but we copy the data from this object before starting the solution process, and copy the data back into it afterwards.

Definition at line 107 of file cuda_solver_direct.h.

template<typename Number >

const AdditionalData CUDAWrappers::SolverDirect< Number >::additional_data

private

Store a copy of the flags for this particular solver.

Definition at line 112 of file cuda_solver_direct.h.

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

• deal.II/lac/cuda_solver_direct.h