#include <deal.II/matrix_free/cuda_matrix_free.h>

Inheritance diagram for CUDAWrappers::MatrixFree< dim, Number >:

Classes
struct	Data

Public Types
enum	ParallelizationScheme

Public Member Functions
	MatrixFree ()

void	reinit (const Mapping< dim > &mapping, const DoFHandler< dim > &dof_handler, const ConstraintMatrix &constraints, const Quadrature< 1 > &quad, const AdditionalData additional_data=AdditionalData())

void	reinit (const DoFHandler< dim > &dof_handler, const ConstraintMatrix &constraints, const Quadrature< 1 > &quad, const AdditionalData AdditionalData=AdditionalData())

Data	get_data (unsigned int color) const

template<typename functor >
void	cell_loop (const functor &func, const CUDAVector< Number > &src, CUDAVector< Number > &dst) const

void	free ()

std::size_t	memory_consumption () const

Public Member Functions inherited from Subscriptor
	Subscriptor ()

	Subscriptor (const Subscriptor &)

	Subscriptor (Subscriptor &&) noexcept

virtual	~Subscriptor ()

Subscriptor &	operator= (const Subscriptor &)

Subscriptor &	operator= (Subscriptor &&) noexcept

void	subscribe (const char *identifier=nullptr) const

void	unsubscribe (const char *identifier=nullptr) const

unsigned int	n_subscriptions () const

void	list_subscribers () const

template<class Archive >
void	serialize (Archive &ar, const unsigned int version)

Private Attributes
ParallelizationScheme	parallelization_scheme

unsigned int	fe_degree

unsigned int	dofs_per_cell

unsigned int	n_constrained_dofs

unsigned int	q_points_per_cell

unsigned int	n_colors

std::vector< unsigned int >	n_cells

std::vector< point_type * >	q_points

std::vector< unsigned int * >	local_to_global

std::vector< Number * >	inv_jacobian

std::vector< Number * >	JxW

std::vector< dim3 >	grid_dim

std::vector< dim3 >	block_dim

Additional Inherited Members
Static Public Member Functions inherited from Subscriptor
static ::ExceptionBase &	ExcInUse (int arg1, std::string arg2, std::string arg3)

static ::ExceptionBase &	ExcNoSubscriber (std::string arg1, std::string arg2)

Detailed Description

template<int dim, typename Number = double>
class CUDAWrappers::MatrixFree< dim, Number >

This class collects all the data that is stored for the matrix free implementation. The storage scheme is tailored towards several loops performed with the same data, i.e., typically doing many matrix-vector products or residual computations on the same mesh.

This class does not implement any operations involving finite element basis functions, i.e., regarding the operation performed on the cells. For these operations, the class FEEvaluation is designed to use the data collected in this class.

This class implements a loop over all cells (cell_loop()). This loop is scheduled in such a way that cells that cells that share degrees of freedom are not worked on simultaneously, which implies that it is possible to write to vectors in parallel without having to explicitly synchronize access to these vectors and matrices. This class does not implement any shape values, all it does is to cache the respective data. To implement finite element operations, use the class CUDAWrappers::FEEvalutation.

This class traverse the cells in a different order than the usual Triangulation class in deal.II.

Note: Only float and double are supported.

Definition at line 73 of file cuda_matrix_free.h.