Diagonal preconditioner. More...

#include <Cabana_Grid_HypreStructuredSolver.hpp>

Inheritance diagram for Cabana::Grid::HypreStructDiagonal< Scalar, EntityType, MemorySpace >:

Collaboration diagram for Cabana::Grid::HypreStructDiagonal< Scalar, EntityType, MemorySpace >:

Public Types
using	base_type = HypreStructuredSolver<Scalar, EntityType, MemorySpace>
	Base HYPRE structured solver type.

Public Types inherited from Cabana::Grid::HypreStructuredSolver< Scalar, EntityType, MemorySpace >
using	entity_type = EntityType
	Entity type.

using	memory_space = MemorySpace
	Kokkos memory space..

using	value_type = Scalar
	Scalar value type.

Public Member Functions
template<class ArrayLayout_t>
	HypreStructDiagonal (const ArrayLayout_t &layout, const bool is_preconditioner=false)
	Constructor.

HYPRE_StructSolver	getHypreSolver () const override
	Get the preconditioner.

HYPRE_PtrToStructSolverFcn	getHypreSetupFunction () const override
	Get the preconditioner setup function.

HYPRE_PtrToStructSolverFcn	getHypreSolveFunction () const override
	Get the preconditioner solve function.

Public Member Functions inherited from Cabana::Grid::HypreStructuredSolver< Scalar, EntityType, MemorySpace >
template<class ArrayLayout_t>
	HypreStructuredSolver (const ArrayLayout_t &layout, const bool is_preconditioner=false)
	Hypre memory space compatibility check.

bool	isPreconditioner () const
	Return if this solver is a preconditioner.

template<std::size_t NumSpaceDim>
void	setMatrixStencil (const std::vector< std::array< int, NumSpaceDim > > &stencil, const bool is_symmetric=false)
	Set the operator stencil.

template<class Array_t>
void	setMatrixValues (const Array_t &values)
	Set the matrix values.

void	printMatrix (const char *prefix)
	Print the hypre matrix to output file.

void	printLHS (const char *prefix)
	Print the hypre LHS to output file.

void	printRHS (const char *prefix)
	Print the hypre RHS to output file.

void	setTolerance (const double tol)
	Set convergence tolerance implementation.

void	setMaxIter (const int max_iter)
	Set maximum iteration implementation.

void	setPrintLevel (const int print_level)
	Set the output level.

void	setPreconditioner (const std::shared_ptr< HypreStructuredSolver< Scalar, EntityType, MemorySpace > > &preconditioner)
	Set a preconditioner.

void	setup ()
	Setup the problem.

template<class Array_t>
void	solve (const Array_t &b, Array_t &x)
	Solve the problem Ax = b for x.

int	getNumIter ()
	Get the number of iterations taken on the last solve.

double	getFinalRelativeResidualNorm ()
	Get the relative residual norm achieved on the last solve.

Protected Member Functions
void	setToleranceImpl (const double) override
	Set convergence tolerance implementation.

void	setMaxIterImpl (const int) override
	Set maximum iteration implementation.

void	setPrintLevelImpl (const int) override
	Set the output level.

void	setupImpl () override
	Setup implementation.

void	solveImpl () override
	Solver implementation.

int	getNumIterImpl () override
	Get the number of iterations taken on the last solve.

double	getFinalRelativeResidualNormImpl () override
	Get the relative residual norm achieved on the last solve.

void	setPreconditionerImpl (const HypreStructuredSolver< Scalar, EntityType, MemorySpace > &) override
	Set a preconditioner.

Protected Member Functions inherited from Cabana::Grid::HypreStructuredSolver< Scalar, EntityType, MemorySpace >
void	checkHypreError (const int error) const
	Check a hypre error.

Additional Inherited Members
Protected Attributes inherited from Cabana::Grid::HypreStructuredSolver< Scalar, EntityType, MemorySpace >
HYPRE_StructMatrix	_A
	Matrix for the problem Ax = b.

HYPRE_StructVector	_b
	Forcing term for the problem Ax = b.

HYPRE_StructVector	_x
	Solution to the problem Ax = b.

Detailed Description

template<class Scalar, class EntityType, class MemorySpace>
class Cabana::Grid::HypreStructDiagonal< Scalar, EntityType, MemorySpace >

Diagonal preconditioner.