Class that runs and controls the LB on waLBerla. More...

#include <LBWalberlaImpl.hpp>

Inheritance diagram for walberla::LBWalberlaImpl< FloatType, Architecture >:

Collaboration diagram for walberla::LBWalberlaImpl< FloatType, Architecture >:

Classes
struct	GhostComm

Public Types
using	Stencil = stencil::D3Q19
	Stencil for collision and streaming operations.

using	StencilFull = stencil::D3Q27
	Stencil for ghost communication (includes domain corners).

using	BlockStorage = LatticeWalberla::Lattice_T
	Lattice model (e.g.

using	PdfField = FieldTrait< FloatType, Stencil, Architecture >::PdfField

using	VectorField = FieldTrait< FloatType, Stencil, Architecture >::VectorField

using	FlagField = BoundaryModel::FlagField

Public Types inherited from LatticeModel
using	units_map = std::unordered_map< std::string, double >

Public Member Functions
template<typename T >
FloatType	FloatType_c (T t) const

std::size_t	stencil_size () const noexcept override

bool	is_double_precision () const noexcept override

bool	is_gpu () const noexcept override

	LBWalberlaImpl (std::shared_ptr< LatticeWalberla > lattice, double viscosity, double density)

	~LBWalberlaImpl () override=default

void	integrate () override

void	set_collision_model (double kT, unsigned int seed) override
	Set up the thermalized collision model.

void	set_collision_model (std::unique_ptr< LeesEdwardsPack > &&lees_edwards_pack) override
	Set up the Lees-Edwards collision model.

void	check_lebc (unsigned int shear_direction, unsigned int shear_plane_normal) const override
	Verify that MD and LB Lees-Edwards parameters are consistent.

void	ghost_communication () override
	Perform all pending ghost layer updates.

void	ghost_communication_pdf () override

void	ghost_communication_vel () override

void	ghost_communication_laf () override

void	ghost_communication_boundary ()

void	ghost_communication_full ()
	Communicate all fields at once using the D3Q27 stencil.

void	apply_lees_edwards_interpolation ()

std::optional< Utils::Vector3d >	get_node_velocity (Utils::Vector3i const &node, bool consider_ghosts=false) const override

bool	set_node_velocity (Utils::Vector3i const &node, Utils::Vector3d const &v) override

std::vector< double >	get_slice_velocity (Utils::Vector3i const &lower_corner, Utils::Vector3i const &upper_corner) const override

void	set_slice_velocity (Utils::Vector3i const &lower_corner, Utils::Vector3i const &upper_corner, std::vector< double > const &velocity) override

std::optional< double >	get_node_density (Utils::Vector3i const &node, bool consider_ghosts=false) const override

bool	set_node_density (Utils::Vector3i const &node, double density) override

std::vector< double >	get_slice_density (Utils::Vector3i const &lower_corner, Utils::Vector3i const &upper_corner) const override

void	set_slice_density (Utils::Vector3i const &lower_corner, Utils::Vector3i const &upper_corner, std::vector< double > const &density) override

std::optional< std::vector< double > >	get_node_population (Utils::Vector3i const &node, bool consider_ghosts=false) const override

bool	set_node_population (Utils::Vector3i const &node, std::vector< double > const &population) override

std::vector< double >	get_slice_population (Utils::Vector3i const &lower_corner, Utils::Vector3i const &upper_corner) const override

void	set_slice_population (Utils::Vector3i const &lower_corner, Utils::Vector3i const &upper_corner, std::vector< double > const &population) override

std::optional< Utils::Vector3d >	get_node_force_to_be_applied (Utils::Vector3i const &node) const override

std::optional< Utils::Vector3d >	get_node_last_applied_force (Utils::Vector3i const &node, bool consider_ghosts=false) const override

bool	set_node_last_applied_force (Utils::Vector3i const &node, Utils::Vector3d const &force) override

std::vector< double >	get_slice_last_applied_force (Utils::Vector3i const &lower_corner, Utils::Vector3i const &upper_corner) const override

void	set_slice_last_applied_force (Utils::Vector3i const &lower_corner, Utils::Vector3i const &upper_corner, std::vector< double > const &force) override

std::optional< Utils::VectorXd< 9 > >	get_node_pressure_tensor (Utils::Vector3i const &node) const override

std::vector< double >	get_slice_pressure_tensor (Utils::Vector3i const &lower_corner, Utils::Vector3i const &upper_corner) const override

std::function< bool(Utils::Vector3d const &)>	make_lattice_position_checker (bool consider_points_in_halo) const override

bool	add_force_at_pos (Utils::Vector3d const &pos, Utils::Vector3d const &force) override

void	add_forces_at_pos (std::vector< Utils::Vector3d > const &pos, std::vector< Utils::Vector3d > const &forces) override
	Distribute forces to the lattice at given positions.

std::optional< Utils::Vector3d >	get_velocity_at_pos (Utils::Vector3d const &pos, bool consider_points_in_halo=false) const override

std::vector< Utils::Vector3d >	get_velocities_at_pos (std::vector< Utils::Vector3d > const &pos) override
	Interpolate velocities at given positions (batch version).

std::optional< double >	get_density_at_pos (Utils::Vector3d const &pos, bool consider_points_in_halo=false) const override

std::vector< double >	get_densities_at_pos (std::vector< Utils::Vector3d > const &pos) override

void	reset_boundary_handling (std::shared_ptr< BlockStorage > const &blocks)

void	on_boundary_add ()
	Lazily enable boundary mode on first boundary addition.

void	clear_boundaries () override

void	reallocate_ubb_field () override

void	update_boundary_from_shape (std::vector< int > const &raster_flat, std::vector< double > const &data_flat) override
	Set boundary conditions from a rasterized shape.

std::optional< Utils::Vector3d >	get_node_velocity_at_boundary (Utils::Vector3i const &node, bool consider_ghosts=false) const override

bool	set_node_velocity_at_boundary (Utils::Vector3i const &node, Utils::Vector3d const &velocity) override

std::vector< std::optional< Utils::Vector3d > >	get_slice_velocity_at_boundary (Utils::Vector3i const &lower_corner, Utils::Vector3i const &upper_corner) const override

void	set_slice_velocity_at_boundary (Utils::Vector3i const &lower_corner, Utils::Vector3i const &upper_corner, std::vector< std::optional< Utils::Vector3d > > const &velocity) override

std::optional< Utils::Vector3d >	get_node_boundary_force (Utils::Vector3i const &node) const override

bool	remove_node_from_boundary (Utils::Vector3i const &node) override

std::optional< bool >	get_node_is_boundary (Utils::Vector3i const &node, bool consider_ghosts=false) const override

std::vector< bool >	get_slice_is_boundary (Utils::Vector3i const &lower_corner, Utils::Vector3i const &upper_corner) const override

Utils::Vector3d	get_boundary_force_from_shape (std::vector< int > const &raster_flat) const override
	Total force exerted by the fluid on a subset of boundary nodes.

Utils::Vector3d	get_boundary_force () const override

Utils::VectorXd< 9 >	get_pressure_tensor () const override

Utils::Vector3d	get_momentum () const override

void	set_external_force (Utils::Vector3d const &ext_force) override

Utils::Vector3d	get_external_force () const noexcept override

void	set_viscosity (double viscosity) override

double	get_viscosity () const noexcept override

double	get_density () const noexcept override

double	get_kT () const noexcept override

unsigned int	get_seed () const noexcept override

std::optional< uint64_t >	get_rng_state () const override

void	set_rng_state (uint64_t counter) override

LatticeWalberla const &	get_lattice () const noexcept override

std::size_t	get_velocity_field_id () const noexcept override

std::size_t	get_force_field_id () const noexcept override

FloatType	pressure_tensor_correction_factor () const
	Correction factor for off-diagonal pressure tensor elements.

void	pressure_tensor_correction (Matrix3< FloatType > &tensor) const

void	pressure_tensor_correction (std::span< FloatType, 9ul > tensor) const

void	register_vtk_field_filters (walberla::vtk::VTKOutput &vtk_obj) override

void	register_vtk_field_writers (walberla::vtk::VTKOutput &vtk_obj, LatticeModel::units_map const &units, int flag_observables) override

Public Member Functions inherited from LBWalberlaBase
	~LBWalberlaBase () override=default

Public Member Functions inherited from LatticeModel
virtual	~LatticeModel ()=default

std::shared_ptr< VTKHandle >	create_vtk (int delta_N, int initial_count, int flag_observables, units_map const &units_conversion, std::string const &identifier, std::string const &base_folder, std::string const &prefix, bool force_pvtu, bool include_boundaries=false)
	Create a VTK observable.

void	write_vtk (std::string const &vtk_uid)
	Write a VTK observable to disk.

void	switch_vtk (std::string const &vtk_uid, bool status)
	Toggle a VTK observable on/off.

Protected Types
using	Kernels = detail::KernelTrait< FloatType, Architecture >

using	BoundaryModel = BoundaryHandling< FloatType, Vector3< FloatType >, typename Kernels::DynamicUBB >

using	CollisionModel = std::variant< typename Kernels::StreamCollisionModelThermalized, typename Kernels::StreamCollisionModelLeesEdwards >

using	_PdfField = FieldTrait< FloatType, Stencil >::PdfField

using	_VectorField = FieldTrait< FloatType, Stencil >::VectorField

using	RegularFullCommunicator = FieldTrait< FloatType, Stencil, Architecture >::template RegularCommScheme< stencil::D3Q27 >
	Full communicator.

using	BoundaryFullCommunicator = FieldTrait< FloatType, Stencil, Architecture >::template BoundaryCommScheme< stencil::D3Q27 >

using	PDFStreamingCommunicator = FieldTrait< FloatType, Stencil, Architecture >::template RegularCommScheme< Stencil >
	Regular communicator.

template<class Field >
using	PackInfo = FieldTrait< FloatType, Stencil, Architecture >::template PackInfo< Field >

Protected Member Functions
void	integrate_vtk_writers () override

template<typename T >
void	zero_centered_transform_impl (T &data, auto const factor) const
	Scale data by a conversion factor (in-place).

void	zero_centered_to_lb_in_place (auto &data) const

void	zero_centered_to_md_in_place (auto &data) const

auto	zero_centered_to_lb (auto const &data) const

auto	zero_centered_to_md (auto const &data) const

template<typename Field >
auto	add_to_storage (std::string const tag)
	Convenience function to add a field with a custom allocator.

void	setup_full_communicator ()
	Set up D3Q27 communicators for full ghost layer updates.

void	setup_streaming_communicator ()
	Set up the communicator used during integration.

Protected Attributes
FloatType	m_viscosity

FloatType	m_density
	kinematic viscosity

FloatType	m_kT

unsigned int	m_seed

double	m_zc_to_md

double	m_zc_to_lb

std::shared_ptr< LatticeWalberla >	m_lattice

BlockDataID	m_pdf_field_id

BlockDataID	m_pdf_tmp_field_id

BlockDataID	m_flag_field_id

BlockDataID	m_last_applied_force_field_id

BlockDataID	m_force_to_be_applied_id

BlockDataID	m_velocity_field_id

BlockDataID	m_vel_tmp_field_id

FlagUID const	Boundary_flag {"boundary"}
	Flag for boundary cells.

bool	m_has_boundaries {false}

std::shared_ptr< BoundaryModel >	m_boundary

std::shared_ptr< BoundaryFullCommunicator >	m_boundary_communicator

std::shared_ptr< RegularFullCommunicator >	m_full_communicator

std::shared_ptr< RegularFullCommunicator >	m_pdf_communicator

std::shared_ptr< RegularFullCommunicator >	m_vel_communicator

std::shared_ptr< RegularFullCommunicator >	m_laf_communicator

std::shared_ptr< PDFStreamingCommunicator >	m_pdf_streaming_communicator

std::bitset< GhostComm::SIZE >	m_pending_ghost_comm

ResourceObserver	m_mpi_cart_comm_observer

std::shared_ptr< CollisionModel >	m_collision_model

std::shared_ptr< ResetForce< PdfField, VectorField > >	m_reset_force

std::shared_ptr< typename Kernels::UpdateVelFromPDF >	m_update_velocities_from_pdf

std::shared_ptr< LeesEdwardsPack >	m_lees_edwards_callbacks

std::shared_ptr< InterpolateAndShiftAtBoundary< _PdfField, FloatType > >	m_lees_edwards_pdf_interpol_sweep

std::shared_ptr< InterpolateAndShiftAtBoundary< _VectorField, FloatType > >	m_lees_edwards_vel_interpol_sweep

std::shared_ptr< InterpolateAndShiftAtBoundary< _VectorField, FloatType > >	m_lees_edwards_last_applied_force_interpol_sweep

Protected Attributes inherited from LatticeModel
std::map< std::string, std::shared_ptr< VTKHandle > >	m_vtk_auto
	VTK writers that are executed automatically.

std::map< std::string, std::shared_ptr< VTKHandle > >	m_vtk_manual
	VTK writers that are executed manually.

Detailed Description

template<typename FloatType, lbmpy::Arch Architecture>
class walberla::LBWalberlaImpl< FloatType, Architecture >

Class that runs and controls the LB on waLBerla.

Definition at line 86 of file LBWalberlaImpl.hpp.

Member Typedef Documentation

◆ _PdfField

template<typename FloatType , lbmpy::Arch Architecture>

using walberla::LBWalberlaImpl< FloatType, Architecture >::_PdfField = FieldTrait<FloatType, Stencil>::PdfField

protected

Definition at line 111 of file LBWalberlaImpl.hpp.

◆ _VectorField

template<typename FloatType , lbmpy::Arch Architecture>

using walberla::LBWalberlaImpl< FloatType, Architecture >::_VectorField = FieldTrait<FloatType, Stencil>::VectorField

protected

Definition at line 112 of file LBWalberlaImpl.hpp.

◆ BlockStorage

template<typename FloatType , lbmpy::Arch Architecture>

using walberla::LBWalberlaImpl< FloatType, Architecture >::BlockStorage = LatticeWalberla::Lattice_T

Lattice model (e.g.

blockforest).

Definition at line 107 of file LBWalberlaImpl.hpp.

◆ BoundaryFullCommunicator

template<typename FloatType , lbmpy::Arch Architecture>

using walberla::LBWalberlaImpl< FloatType, Architecture >::BoundaryFullCommunicator = FieldTrait<FloatType, Stencil, Architecture>::template BoundaryCommScheme<stencil::D3Q27>

protected

Definition at line 143 of file LBWalberlaImpl.hpp.

◆ BoundaryModel

template<typename FloatType , lbmpy::Arch Architecture>

using walberla::LBWalberlaImpl< FloatType, Architecture >::BoundaryModel = BoundaryHandling<FloatType, Vector3<FloatType>, typename Kernels::DynamicUBB>

protected

Definition at line 95 of file LBWalberlaImpl.hpp.

◆ CollisionModel

template<typename FloatType , lbmpy::Arch Architecture>

using walberla::LBWalberlaImpl< FloatType, Architecture >::CollisionModel = std::variant<typename Kernels::StreamCollisionModelThermalized, typename Kernels::StreamCollisionModelLeesEdwards>

protected

Definition at line 97 of file LBWalberlaImpl.hpp.

◆ FlagField

template<typename FloatType , lbmpy::Arch Architecture>

using walberla::LBWalberlaImpl< FloatType, Architecture >::FlagField = BoundaryModel::FlagField

Definition at line 117 of file LBWalberlaImpl.hpp.

◆ Kernels

template<typename FloatType , lbmpy::Arch Architecture>

using walberla::LBWalberlaImpl< FloatType, Architecture >::Kernels = detail::KernelTrait<FloatType, Architecture>

protected

Definition at line 94 of file LBWalberlaImpl.hpp.

◆ PackInfo

template<typename FloatType , lbmpy::Arch Architecture>

template<class Field >

using walberla::LBWalberlaImpl< FloatType, Architecture >::PackInfo = FieldTrait<FloatType, Stencil, Architecture>::template PackInfo<Field>

protected

Definition at line 154 of file LBWalberlaImpl.hpp.

◆ PdfField

template<typename FloatType , lbmpy::Arch Architecture>

using walberla::LBWalberlaImpl< FloatType, Architecture >::PdfField = FieldTrait<FloatType, Stencil, Architecture>::PdfField

Definition at line 115 of file LBWalberlaImpl.hpp.

◆ PDFStreamingCommunicator

template<typename FloatType , lbmpy::Arch Architecture>

using walberla::LBWalberlaImpl< FloatType, Architecture >::PDFStreamingCommunicator = FieldTrait<FloatType, Stencil, Architecture>::template RegularCommScheme<Stencil>

protected

Regular communicator.

We use the same directions as the stencil during integration.

Definition at line 150 of file LBWalberlaImpl.hpp.

◆ RegularFullCommunicator

template<typename FloatType , lbmpy::Arch Architecture>

using walberla::LBWalberlaImpl< FloatType, Architecture >::RegularFullCommunicator = FieldTrait<FloatType, Stencil, Architecture>::template RegularCommScheme<stencil::D3Q27>

protected

Full communicator.

We use the D3Q27 directions to update cells along the diagonals during a full ghost communication. This is needed to properly update the corners of the ghost layer when setting cell velocities or populations.

Definition at line 140 of file LBWalberlaImpl.hpp.

◆ Stencil

template<typename FloatType , lbmpy::Arch Architecture>

using walberla::LBWalberlaImpl< FloatType, Architecture >::Stencil = stencil::D3Q19

Stencil for collision and streaming operations.

Definition at line 103 of file LBWalberlaImpl.hpp.

◆ StencilFull

template<typename FloatType , lbmpy::Arch Architecture>

using walberla::LBWalberlaImpl< FloatType, Architecture >::StencilFull = stencil::D3Q27

Stencil for ghost communication (includes domain corners).

Definition at line 105 of file LBWalberlaImpl.hpp.

◆ VectorField

template<typename FloatType , lbmpy::Arch Architecture>

using walberla::LBWalberlaImpl< FloatType, Architecture >::VectorField = FieldTrait<FloatType, Stencil, Architecture>::VectorField

Definition at line 116 of file LBWalberlaImpl.hpp.

Constructor & Destructor Documentation

◆ LBWalberlaImpl()

template<typename FloatType , lbmpy::Arch Architecture>

walberla::LBWalberlaImpl< FloatType, Architecture >::LBWalberlaImpl	(	std::shared_ptr< LatticeWalberla >	lattice,
		double	viscosity,
		double	density
	)

inline

Definition at line 236 of file LBWalberlaImpl.hpp.

◆ ~LBWalberlaImpl()

template<typename FloatType , lbmpy::Arch Architecture>

walberla::LBWalberlaImpl< FloatType, Architecture >::~LBWalberlaImpl ( )

overridedefault

Member Function Documentation

◆ add_force_at_pos()

template<typename FloatType , lbmpy::Arch Architecture>

bool walberla::LBWalberlaImpl< FloatType, Architecture >::add_force_at_pos	(	Utils::Vector3d const &	pos,
		Utils::Vector3d const &	force
	)

overridevirtual

Implements LBWalberlaBase.

Definition at line 345 of file LBInterpolation.impl.hpp.

◆ add_forces_at_pos()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::add_forces_at_pos	(	std::vector< Utils::Vector3d > const &	pos,
		std::vector< Utils::Vector3d > const &	forces
	)

overridevirtual

Distribute forces to the lattice at given positions.

Uses B-spline interpolation to spread each force over the surrounding lattice nodes. On GPU, positions are transformed to block-local coordinates and the operation is performed in a single kernel launch.

Implements LBWalberlaBase.

Definition at line 85 of file LBInterpolation.impl.hpp.

References walberla::lbm::accessor::Interpolation::add_force(), block(), lbmpy::CPU, lbmpy::GPU, and stream.

◆ add_to_storage()

template<typename FloatType , lbmpy::Arch Architecture>

template<typename Field >

auto walberla::LBWalberlaImpl< FloatType, Architecture >::add_to_storage ( std::string const tag )

inlineprotected

Convenience function to add a field with a custom allocator.

When vectorization is off, let waLBerla decide which memory allocator to use. When vectorization is on, the aligned memory allocator is required, otherwise cpu_vectorize_info["assume_aligned"] will trigger assertions. That is because for single-precision kernels the waLBerla heuristic in src/field/allocation/FieldAllocator.h will fall back to StdFieldAlloc, yet AllocateAligned is needed for intrinsics to work.

Definition at line 854 of file LBWalberlaImpl.hpp.

References block(), lbmpy::GPU, walberla::lbm::accessor::Population::initialize(), walberla::lbm::accessor::Vector::initialize(), walberla::LBWalberlaImpl< FloatType, Architecture >::m_lattice, and stream.

◆ apply_lees_edwards_interpolation()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::apply_lees_edwards_interpolation ( )

inline

Definition at line 529 of file LBWalberlaImpl.hpp.

References LatticeWalberla::get_blocks(), walberla::LBWalberlaImpl< FloatType, Architecture >::get_lattice(), and stream.

Referenced by walberla::LBWalberlaImpl< FloatType, Architecture >::ghost_communication_full().

◆ check_lebc()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::check_lebc	(	unsigned int	shear_direction,
		unsigned int	shear_plane_normal
	)		const

overridevirtual

Verify that MD and LB Lees-Edwards parameters are consistent.

Implements LBWalberlaBase.

Definition at line 142 of file LBCollisionSetup.impl.hpp.

References stream.

◆ clear_boundaries()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::clear_boundaries ( )

overridevirtual

Implements LBWalberlaBase.

Definition at line 200 of file LBBoundaryAccess.impl.hpp.

◆ FloatType_c()

template<typename FloatType , lbmpy::Arch Architecture>

template<typename T >

FloatType walberla::LBWalberlaImpl< FloatType, Architecture >::FloatType_c ( T t ) const

inline

Definition at line 219 of file LBWalberlaImpl.hpp.

References stream.

Referenced by walberla::LBWalberlaImpl< FloatType, Architecture >::set_viscosity().

◆ get_boundary_force()

template<typename FloatType , lbmpy::Arch Architecture>

Utils::Vector3d walberla::LBWalberlaImpl< FloatType, Architecture >::get_boundary_force ( ) const

overridevirtual

Implements LBWalberlaBase.

Definition at line 297 of file LBBoundaryAccess.impl.hpp.

References block(), stream, and walberla::to_vector3d().

◆ get_boundary_force_from_shape()

template<typename FloatType , lbmpy::Arch Architecture>

Utils::Vector3d walberla::LBWalberlaImpl< FloatType, Architecture >::get_boundary_force_from_shape ( std::vector< int > const & raster_flat ) const

overridevirtual

Total force exerted by the fluid on a subset of boundary nodes.

Only boundary nodes where raster_flat is non-zero are included. The force is accumulated from the UBB index/force vectors by matching each boundary node's stencil neighbors against the index field.

Implements LBWalberlaBase.

Definition at line 264 of file LBBoundaryAccess.impl.hpp.

References block(), and stream.

◆ get_densities_at_pos()

template<typename FloatType , lbmpy::Arch Architecture>

std::vector< double > walberla::LBWalberlaImpl< FloatType, Architecture >::get_densities_at_pos ( std::vector< Utils::Vector3d > const & pos )

overridevirtual

Implements LBWalberlaBase.

Definition at line 276 of file LBInterpolation.impl.hpp.

References block(), lbmpy::CPU, walberla::lbm::accessor::Interpolation::get_rho(), lbmpy::GPU, and stream.

◆ get_density()

template<typename FloatType , lbmpy::Arch Architecture>

double walberla::LBWalberlaImpl< FloatType, Architecture >::get_density ( ) const

inlineoverridevirtualnoexcept

Implements LBWalberlaBase.

Definition at line 718 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::m_density.

◆ get_density_at_pos()

template<typename FloatType , lbmpy::Arch Architecture>

std::optional< double > walberla::LBWalberlaImpl< FloatType, Architecture >::get_density_at_pos	(	Utils::Vector3d const &	pos,
		bool	consider_points_in_halo = `false`
	)		const

overridevirtual

Implements LBWalberlaBase.

Definition at line 333 of file LBInterpolation.impl.hpp.

References stream.

◆ get_external_force()

template<typename FloatType , lbmpy::Arch Architecture>

Utils::Vector3d walberla::LBWalberlaImpl< FloatType, Architecture >::get_external_force ( ) const

inlineoverridevirtualnoexcept

Implements LBWalberlaBase.

Definition at line 706 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::m_reset_force, and walberla::LBWalberlaImpl< FloatType, Architecture >::zero_centered_to_md().

◆ get_force_field_id()

template<typename FloatType , lbmpy::Arch Architecture>

std::size_t walberla::LBWalberlaImpl< FloatType, Architecture >::get_force_field_id ( ) const

inlineoverridevirtualnoexcept

Implements LBWalberlaBase.

Definition at line 760 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::m_force_to_be_applied_id.

◆ get_kT()

template<typename FloatType , lbmpy::Arch Architecture>

double walberla::LBWalberlaImpl< FloatType, Architecture >::get_kT ( ) const

inlineoverridevirtualnoexcept

Implements LBWalberlaBase.

Definition at line 722 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::m_kT.

◆ get_lattice()

template<typename FloatType , lbmpy::Arch Architecture>

LatticeWalberla const & walberla::LBWalberlaImpl< FloatType, Architecture >::get_lattice ( ) const

inlineoverridevirtualnoexcept

Implements LatticeModel.

Definition at line 752 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::m_lattice.

Referenced by walberla::LBWalberlaImpl< FloatType, Architecture >::apply_lees_edwards_interpolation(), walberla::LBWalberlaImpl< FloatType, Architecture >::get_momentum(), walberla::LBWalberlaImpl< FloatType, Architecture >::get_pressure_tensor(), walberla::LBWalberlaImpl< FloatType, Architecture >::ghost_communication_laf(), walberla::LBWalberlaImpl< FloatType, Architecture >::ghost_communication_pdf(), and walberla::LBWalberlaImpl< FloatType, Architecture >::ghost_communication_vel().

◆ get_momentum()

template<typename FloatType , lbmpy::Arch Architecture>

Utils::Vector3d walberla::LBWalberlaImpl< FloatType, Architecture >::get_momentum ( ) const

inlineoverridevirtual

Implements LBWalberlaBase.

Definition at line 689 of file LBWalberlaImpl.hpp.

References block(), LatticeWalberla::get_blocks(), walberla::LBWalberlaImpl< FloatType, Architecture >::get_lattice(), walberla::LBWalberlaImpl< FloatType, Architecture >::m_density, walberla::LBWalberlaImpl< FloatType, Architecture >::m_last_applied_force_field_id, walberla::LBWalberlaImpl< FloatType, Architecture >::m_pdf_field_id, walberla::lbm::accessor::MomentumDensity::reduce(), stream, and walberla::to_vector3d().

◆ get_node_boundary_force()

template<typename FloatType , lbmpy::Arch Architecture>

std::optional< Utils::Vector3d > walberla::LBWalberlaImpl< FloatType, Architecture >::get_node_boundary_force ( Utils::Vector3i const & node ) const

overridevirtual

Implements LBWalberlaBase.

Definition at line 123 of file LBBoundaryAccess.impl.hpp.

References walberla::get_block_and_cell(), and stream.

◆ get_node_density()

template<typename FloatType , lbmpy::Arch Architecture>

std::optional< double > walberla::LBWalberlaImpl< FloatType, Architecture >::get_node_density	(	Utils::Vector3i const &	node,
		bool	consider_ghosts = `false`
	)		const

overridevirtual

Implements LBWalberlaBase.

Definition at line 82 of file LBNodeAccess.impl.hpp.

References density, walberla::lbm::accessor::Density::get(), walberla::get_block_and_cell(), and stream.

◆ get_node_force_to_be_applied()

template<typename FloatType , lbmpy::Arch Architecture>

std::optional< Utils::Vector3d > walberla::LBWalberlaImpl< FloatType, Architecture >::get_node_force_to_be_applied ( Utils::Vector3i const & node ) const

overridevirtual

Implements LBWalberlaBase.

Definition at line 156 of file LBNodeAccess.impl.hpp.

References walberla::lbm::accessor::Vector::get(), walberla::get_block_and_cell(), stream, and walberla::to_vector3d().

◆ get_node_is_boundary()

template<typename FloatType , lbmpy::Arch Architecture>

std::optional< bool > walberla::LBWalberlaImpl< FloatType, Architecture >::get_node_is_boundary	(	Utils::Vector3i const &	node,
		bool	consider_ghosts = `false`
	)		const

overridevirtual

Implements LBWalberlaBase.

Definition at line 147 of file LBBoundaryAccess.impl.hpp.

References walberla::get_block_and_cell(), and stream.

◆ get_node_last_applied_force()

template<typename FloatType , lbmpy::Arch Architecture>

std::optional< Utils::Vector3d > walberla::LBWalberlaImpl< FloatType, Architecture >::get_node_last_applied_force	(	Utils::Vector3i const &	node,
		bool	consider_ghosts = `false`
	)		const

overridevirtual

Implements LBWalberlaBase.

Definition at line 170 of file LBNodeAccess.impl.hpp.

References walberla::lbm::accessor::Vector::get(), walberla::get_block_and_cell(), stream, and walberla::to_vector3d().

◆ get_node_population()

template<typename FloatType , lbmpy::Arch Architecture>

std::optional< std::vector< double > > walberla::LBWalberlaImpl< FloatType, Architecture >::get_node_population	(	Utils::Vector3i const &	node,
		bool	consider_ghosts = `false`
	)		const

overridevirtual

Implements LBWalberlaBase.

Definition at line 113 of file LBNodeAccess.impl.hpp.

References walberla::lbm::accessor::Population::get(), walberla::get_block_and_cell(), and stream.

◆ get_node_pressure_tensor()

template<typename FloatType , lbmpy::Arch Architecture>

std::optional< Utils::VectorXd< 9 > > walberla::LBWalberlaImpl< FloatType, Architecture >::get_node_pressure_tensor ( Utils::Vector3i const & node ) const

overridevirtual

Implements LBWalberlaBase.

Definition at line 206 of file LBNodeAccess.impl.hpp.

References walberla::lbm::accessor::PressureTensor::get(), walberla::get_block_and_cell(), stream, and walberla::to_vector9d().

◆ get_node_velocity()

template<typename FloatType , lbmpy::Arch Architecture>

std::optional< Utils::Vector3d > walberla::LBWalberlaImpl< FloatType, Architecture >::get_node_velocity	(	Utils::Vector3i const &	node,
		bool	consider_ghosts = `false`
	)		const

overridevirtual

Implements LBWalberlaBase.

Definition at line 39 of file LBNodeAccess.impl.hpp.

References walberla::lbm::accessor::Vector::get(), walberla::get_block_and_cell(), stream, and walberla::to_vector3d().

◆ get_node_velocity_at_boundary()

template<typename FloatType , lbmpy::Arch Architecture>

std::optional< Utils::Vector3d > walberla::LBWalberlaImpl< FloatType, Architecture >::get_node_velocity_at_boundary	(	Utils::Vector3i const &	node,
		bool	consider_ghosts = `false`
	)		const

overridevirtual

Implements LBWalberlaBase.

Definition at line 37 of file LBBoundaryAccess.impl.hpp.

References walberla::get_block_and_cell(), stream, and walberla::to_vector3d().

◆ get_pressure_tensor()

template<typename FloatType , lbmpy::Arch Architecture>

Utils::VectorXd< 9 > walberla::LBWalberlaImpl< FloatType, Architecture >::get_pressure_tensor ( ) const

inlineoverridevirtual

Implements LBWalberlaBase.

Definition at line 676 of file LBWalberlaImpl.hpp.

References block(), LatticeWalberla::get_blocks(), LatticeWalberla::get_grid_dimensions(), walberla::LBWalberlaImpl< FloatType, Architecture >::get_lattice(), walberla::LBWalberlaImpl< FloatType, Architecture >::m_density, walberla::LBWalberlaImpl< FloatType, Architecture >::m_pdf_field_id, walberla::LBWalberlaImpl< FloatType, Architecture >::pressure_tensor_correction(), Utils::product(), walberla::lbm::accessor::PressureTensor::reduce(), stream, and walberla::to_vector9d().

◆ get_rng_state()

template<typename FloatType , lbmpy::Arch Architecture>

std::optional< uint64_t > walberla::LBWalberlaImpl< FloatType, Architecture >::get_rng_state ( ) const

inlineoverridevirtual

Implements LBWalberlaBase.

Definition at line 730 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::m_collision_model, walberla::LBWalberlaImpl< FloatType, Architecture >::m_kT, and stream.

◆ get_seed()

template<typename FloatType , lbmpy::Arch Architecture>

unsigned int walberla::LBWalberlaImpl< FloatType, Architecture >::get_seed ( ) const

inlineoverridevirtualnoexcept

Implements LBWalberlaBase.

Definition at line 726 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::m_seed.

◆ get_slice_density()

template<typename FloatType , lbmpy::Arch Architecture>

std::vector< double > walberla::LBWalberlaImpl< FloatType, Architecture >::get_slice_density	(	Utils::Vector3i const &	lower_corner,
		Utils::Vector3i const &	upper_corner
	)		const

overridevirtual

Implements LBWalberlaBase.

Definition at line 228 of file LBSliceAccess.impl.hpp.

References block(), walberla::copy_block_buffer(), walberla::for_each_block_in_slice(), walberla::lbm::accessor::Density::get(), and stream.

◆ get_slice_is_boundary()

template<typename FloatType , lbmpy::Arch Architecture>

std::vector< bool > walberla::LBWalberlaImpl< FloatType, Architecture >::get_slice_is_boundary	(	Utils::Vector3i const &	lower_corner,
		Utils::Vector3i const &	upper_corner
	)		const

overridevirtual

Implements LBWalberlaBase.

Definition at line 159 of file LBBoundaryAccess.impl.hpp.

References walberla::copy_block_buffer(), walberla::for_each_block_in_slice(), and stream.

◆ get_slice_last_applied_force()

template<typename FloatType , lbmpy::Arch Architecture>

std::vector< double > walberla::LBWalberlaImpl< FloatType, Architecture >::get_slice_last_applied_force	(	Utils::Vector3i const &	lower_corner,
		Utils::Vector3i const &	upper_corner
	)		const

overridevirtual

Implements LBWalberlaBase.

Definition at line 106 of file LBSliceAccess.impl.hpp.

References block(), walberla::copy_block_buffer(), walberla::for_each_block_in_slice(), walberla::lbm::accessor::Vector::get(), and stream.

◆ get_slice_population()

template<typename FloatType , lbmpy::Arch Architecture>

std::vector< double > walberla::LBWalberlaImpl< FloatType, Architecture >::get_slice_population	(	Utils::Vector3i const &	lower_corner,
		Utils::Vector3i const &	upper_corner
	)		const

overridevirtual

Implements LBWalberlaBase.

Definition at line 169 of file LBSliceAccess.impl.hpp.

References block(), walberla::copy_block_buffer(), walberla::for_each_block_in_slice(), walberla::lbm::accessor::Population::get(), and stream.

◆ get_slice_pressure_tensor()

template<typename FloatType , lbmpy::Arch Architecture>

std::vector< double > walberla::LBWalberlaImpl< FloatType, Architecture >::get_slice_pressure_tensor	(	Utils::Vector3i const &	lower_corner,
		Utils::Vector3i const &	upper_corner
	)		const

overridevirtual

Implements LBWalberlaBase.

Definition at line 279 of file LBSliceAccess.impl.hpp.

References block(), walberla::copy_block_buffer(), walberla::for_each_block_in_slice(), walberla::lbm::accessor::PressureTensor::get(), and stream.

◆ get_slice_velocity()

template<typename FloatType , lbmpy::Arch Architecture>

std::vector< double > walberla::LBWalberlaImpl< FloatType, Architecture >::get_slice_velocity	(	Utils::Vector3i const &	lower_corner,
		Utils::Vector3i const &	upper_corner
	)		const

overridevirtual

Implements LBWalberlaBase.

Definition at line 36 of file LBSliceAccess.impl.hpp.

References block(), walberla::copy_block_buffer(), walberla::for_each_block_in_slice(), walberla::lbm::accessor::Vector::get(), and stream.

◆ get_slice_velocity_at_boundary()

template<typename FloatType , lbmpy::Arch Architecture>

std::vector< std::optional< Utils::Vector3d > > walberla::LBWalberlaImpl< FloatType, Architecture >::get_slice_velocity_at_boundary	(	Utils::Vector3i const &	lower_corner,
		Utils::Vector3i const &	upper_corner
	)		const

overridevirtual

Implements LBWalberlaBase.

Definition at line 65 of file LBBoundaryAccess.impl.hpp.

References walberla::copy_block_buffer(), walberla::for_each_block_in_slice(), stream, and walberla::to_vector3d().

◆ get_velocities_at_pos()

template<typename FloatType , lbmpy::Arch Architecture>

std::vector< Utils::Vector3d > walberla::LBWalberlaImpl< FloatType, Architecture >::get_velocities_at_pos ( std::vector< Utils::Vector3d > const & pos )

overridevirtual

Interpolate velocities at given positions (batch version).

On GPU, boundary slip velocities are written into the velocity field before interpolation, since the field has indeterminate values inside boundary regions.

Implements LBWalberlaBase.

Definition at line 229 of file LBInterpolation.impl.hpp.

References block(), lbmpy::CPU, walberla::lbm::accessor::Interpolation::get_vel(), lbmpy::GPU, walberla::lbm::accessor::Vector::set_from_list(), and stream.

◆ get_velocity_at_pos()

template<typename FloatType , lbmpy::Arch Architecture>

std::optional< Utils::Vector3d > walberla::LBWalberlaImpl< FloatType, Architecture >::get_velocity_at_pos	(	Utils::Vector3d const &	pos,
		bool	consider_points_in_halo = `false`
	)		const

overridevirtual

Implements LBWalberlaBase.

Definition at line 319 of file LBInterpolation.impl.hpp.

References stream.

◆ get_velocity_field_id()

template<typename FloatType , lbmpy::Arch Architecture>

std::size_t walberla::LBWalberlaImpl< FloatType, Architecture >::get_velocity_field_id ( ) const

inlineoverridevirtualnoexcept

Implements LBWalberlaBase.

Definition at line 756 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::m_velocity_field_id.

◆ get_viscosity()

template<typename FloatType , lbmpy::Arch Architecture>

double walberla::LBWalberlaImpl< FloatType, Architecture >::get_viscosity ( ) const

inlineoverridevirtualnoexcept

Implements LBWalberlaBase.

Definition at line 714 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::m_viscosity.

◆ ghost_communication()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::ghost_communication ( )

inlineoverridevirtual

Perform all pending ghost layer updates.

Uses a lazy scheme: ghost communications are only executed when they have been marked as pending by a preceding write operation.

Implements LBWalberlaBase.

Definition at line 436 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::ghost_communication_boundary(), walberla::LBWalberlaImpl< FloatType, Architecture >::ghost_communication_laf(), walberla::LBWalberlaImpl< FloatType, Architecture >::ghost_communication_pdf(), walberla::LBWalberlaImpl< FloatType, Architecture >::ghost_communication_vel(), ResourceObserver::is_valid(), walberla::LBWalberlaImpl< FloatType, Architecture >::m_mpi_cart_comm_observer, walberla::LBWalberlaImpl< FloatType, Architecture >::m_pending_ghost_comm, and stream.

◆ ghost_communication_boundary()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::ghost_communication_boundary ( )

inline

Definition at line 482 of file LBWalberlaImpl.hpp.

References ResourceObserver::is_valid(), walberla::LBWalberlaImpl< FloatType, Architecture >::m_boundary_communicator, walberla::LBWalberlaImpl< FloatType, Architecture >::m_mpi_cart_comm_observer, walberla::LBWalberlaImpl< FloatType, Architecture >::m_pending_ghost_comm, stream, and walberla::LBWalberlaImpl< FloatType, Architecture >::GhostComm::UBB.

Referenced by walberla::LBWalberlaImpl< FloatType, Architecture >::ghost_communication().

◆ ghost_communication_full()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::ghost_communication_full ( )

inline

Communicate all fields at once using the D3Q27 stencil.

Definition at line 491 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::apply_lees_edwards_interpolation(), ResourceObserver::is_valid(), walberla::LBWalberlaImpl< FloatType, Architecture >::GhostComm::LAF, walberla::LBWalberlaImpl< FloatType, Architecture >::m_full_communicator, walberla::LBWalberlaImpl< FloatType, Architecture >::m_mpi_cart_comm_observer, walberla::LBWalberlaImpl< FloatType, Architecture >::m_pending_ghost_comm, walberla::LBWalberlaImpl< FloatType, Architecture >::GhostComm::PDF, stream, and walberla::LBWalberlaImpl< FloatType, Architecture >::GhostComm::VEL.

◆ ghost_communication_laf()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::ghost_communication_laf ( )

inlineoverridevirtual

Implements LBWalberlaBase.

Definition at line 470 of file LBWalberlaImpl.hpp.

References LatticeWalberla::get_blocks(), walberla::LBWalberlaImpl< FloatType, Architecture >::get_lattice(), ResourceObserver::is_valid(), walberla::LBWalberlaImpl< FloatType, Architecture >::GhostComm::LAF, walberla::LBWalberlaImpl< FloatType, Architecture >::m_laf_communicator, walberla::LBWalberlaImpl< FloatType, Architecture >::m_mpi_cart_comm_observer, walberla::LBWalberlaImpl< FloatType, Architecture >::m_pending_ghost_comm, and stream.

Referenced by walberla::LBWalberlaImpl< FloatType, Architecture >::ghost_communication().

◆ ghost_communication_pdf()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::ghost_communication_pdf ( )

inlineoverridevirtual

Implements LBWalberlaBase.

Definition at line 446 of file LBWalberlaImpl.hpp.

References LatticeWalberla::get_blocks(), walberla::LBWalberlaImpl< FloatType, Architecture >::get_lattice(), ResourceObserver::is_valid(), walberla::LBWalberlaImpl< FloatType, Architecture >::m_mpi_cart_comm_observer, walberla::LBWalberlaImpl< FloatType, Architecture >::m_pdf_communicator, walberla::LBWalberlaImpl< FloatType, Architecture >::m_pending_ghost_comm, walberla::LBWalberlaImpl< FloatType, Architecture >::GhostComm::PDF, and stream.

Referenced by walberla::LBWalberlaImpl< FloatType, Architecture >::ghost_communication().

◆ ghost_communication_vel()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::ghost_communication_vel ( )

inlineoverridevirtual

Implements LBWalberlaBase.

Definition at line 458 of file LBWalberlaImpl.hpp.

References LatticeWalberla::get_blocks(), walberla::LBWalberlaImpl< FloatType, Architecture >::get_lattice(), ResourceObserver::is_valid(), walberla::LBWalberlaImpl< FloatType, Architecture >::m_mpi_cart_comm_observer, walberla::LBWalberlaImpl< FloatType, Architecture >::m_pending_ghost_comm, walberla::LBWalberlaImpl< FloatType, Architecture >::m_vel_communicator, stream, and walberla::LBWalberlaImpl< FloatType, Architecture >::GhostComm::VEL.

Referenced by walberla::LBWalberlaImpl< FloatType, Architecture >::ghost_communication().

◆ integrate()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::integrate ( )

inlineoverridevirtual

Implements LBWalberlaBase.

Definition at line 290 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::integrate_vtk_writers().

◆ integrate_vtk_writers()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::integrate_vtk_writers ( )

inlineoverrideprotectedvirtual

Implements LatticeModel.

Definition at line 296 of file LBWalberlaImpl.hpp.

References LatticeModel::m_vtk_auto, and stream.

Referenced by walberla::LBWalberlaImpl< FloatType, Architecture >::integrate().

◆ is_double_precision()

template<typename FloatType , lbmpy::Arch Architecture>

bool walberla::LBWalberlaImpl< FloatType, Architecture >::is_double_precision ( ) const

inlineoverridevirtualnoexcept

Implements LBWalberlaBase.

Definition at line 227 of file LBWalberlaImpl.hpp.

◆ is_gpu()

template<typename FloatType , lbmpy::Arch Architecture>

bool walberla::LBWalberlaImpl< FloatType, Architecture >::is_gpu ( ) const

inlineoverridevirtualnoexcept

Implements LBWalberlaBase.

Definition at line 231 of file LBWalberlaImpl.hpp.

References lbmpy::GPU, and stream.

◆ make_lattice_position_checker()

template<typename FloatType , lbmpy::Arch Architecture>

std::function< bool(Utils::Vector3d const &)> walberla::LBWalberlaImpl< FloatType, Architecture >::make_lattice_position_checker ( bool consider_points_in_halo ) const

overridevirtual

Implements LBWalberlaBase.

Definition at line 69 of file LBInterpolation.impl.hpp.

References stream.

◆ on_boundary_add()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::on_boundary_add ( )

Lazily enable boundary mode on first boundary addition.

Switches the streaming communicator to the generic pack info, which correctly handles boundary-adjacent cells.

Definition at line 191 of file LBBoundaryAccess.impl.hpp.

References stream.

◆ pressure_tensor_correction() [1/2]

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::pressure_tensor_correction ( Matrix3< FloatType > & tensor ) const

inline

Definition at line 773 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::pressure_tensor_correction_factor(), and stream.

Referenced by walberla::LBWalberlaImpl< FloatType, Architecture >::get_pressure_tensor().

◆ pressure_tensor_correction() [2/2]

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::pressure_tensor_correction ( std::span< FloatType, 9ul > tensor ) const

inline

Definition at line 780 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::pressure_tensor_correction_factor(), and stream.

◆ pressure_tensor_correction_factor()

template<typename FloatType , lbmpy::Arch Architecture>

FloatType walberla::LBWalberlaImpl< FloatType, Architecture >::pressure_tensor_correction_factor ( ) const

inline

Correction factor for off-diagonal pressure tensor elements.

Compensates for the viscosity-dependent error in the non-equilibrium stress: factor = nu / (nu + 1/6).

Definition at line 769 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::m_viscosity.

Referenced by walberla::LBWalberlaImpl< FloatType, Architecture >::pressure_tensor_correction(), and walberla::LBWalberlaImpl< FloatType, Architecture >::pressure_tensor_correction().

◆ reallocate_ubb_field()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::reallocate_ubb_field ( )

overridevirtual

Implements LBWalberlaBase.

Definition at line 181 of file LBBoundaryAccess.impl.hpp.

◆ register_vtk_field_filters()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::register_vtk_field_filters ( walberla::vtk::VTKOutput & vtk_obj )

inlineoverridevirtual

Implements LatticeModel.

Definition at line 830 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::Boundary_flag, walberla::LBWalberlaImpl< FloatType, Architecture >::m_flag_field_id, and stream.

◆ register_vtk_field_writers()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::register_vtk_field_writers	(	walberla::vtk::VTKOutput &	vtk_obj,
		LatticeModel::units_map const &	units,
		int	flag_observables
	)

overridevirtual

Implements LatticeModel.

Definition at line 159 of file LBVTK.impl.hpp.

References block(), boundary, density, walberla::lbm::accessor::Density::get(), walberla::lbm::accessor::PressureTensor::get(), walberla::lbm::accessor::Vector::get(), pressure_tensor, stream, and velocity_vector.

◆ remove_node_from_boundary()

template<typename FloatType , lbmpy::Arch Architecture>

bool walberla::LBWalberlaImpl< FloatType, Architecture >::remove_node_from_boundary ( Utils::Vector3i const & node )

overridevirtual

Implements LBWalberlaBase.

Definition at line 133 of file LBBoundaryAccess.impl.hpp.

References walberla::get_block_and_cell(), and stream.

◆ reset_boundary_handling()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::reset_boundary_handling ( std::shared_ptr< BlockStorage > const & blocks )

inline

Definition at line 630 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::m_boundary, walberla::LBWalberlaImpl< FloatType, Architecture >::m_flag_field_id, walberla::LBWalberlaImpl< FloatType, Architecture >::m_lattice, walberla::LBWalberlaImpl< FloatType, Architecture >::m_pdf_field_id, stream, and walberla::to_cell().

Referenced by walberla::LBWalberlaImpl< FloatType, Architecture >::LBWalberlaImpl().

◆ set_collision_model() [1/2]

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::set_collision_model	(	double	kT,
		unsigned int	seed
	)

overridevirtual

Set up the thermalized collision model.

Configures MRT relaxation rates from the viscosity and initializes the random number generator for fluctuating LB. When kT is zero, fluctuations are suppressed but the thermalized kernel is still used (required for RNG state tracking).

Implements LBWalberlaBase.

Definition at line 56 of file LBCollisionSetup.impl.hpp.

References stream.

◆ set_collision_model() [2/2]

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::set_collision_model ( std::unique_ptr< LeesEdwardsPack > && lees_edwards_pack )

overridevirtual

Set up the Lees-Edwards collision model.

Configures a modified collision step that applies the shear velocity at the Lees-Edwards boundary planes, and sets up the interpolation sweeps for PDFs, velocities, and forces at those boundaries. Currently restricted to shear_plane_normal="y" and no domain decomposition along the shear direction.

Implements LBWalberlaBase.

Definition at line 80 of file LBCollisionSetup.impl.hpp.

References lbmpy::GPU, and stream.

◆ set_external_force()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::set_external_force ( Utils::Vector3d const & ext_force )

inlineoverridevirtual

Implements LBWalberlaBase.

Definition at line 702 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::m_reset_force, and walberla::LBWalberlaImpl< FloatType, Architecture >::zero_centered_to_lb().

◆ set_node_density()

template<typename FloatType , lbmpy::Arch Architecture>

bool walberla::LBWalberlaImpl< FloatType, Architecture >::set_node_density	(	Utils::Vector3i const &	node,
		double	density
	)

overridevirtual

Implements LBWalberlaBase.

Definition at line 97 of file LBNodeAccess.impl.hpp.

References density, walberla::get_block_and_cell(), walberla::lbm::accessor::Density::set(), and stream.

◆ set_node_last_applied_force()

template<typename FloatType , lbmpy::Arch Architecture>

bool walberla::LBWalberlaImpl< FloatType, Architecture >::set_node_last_applied_force	(	Utils::Vector3i const &	node,
		Utils::Vector3d const &	force
	)

overridevirtual

Implements LBWalberlaBase.

Definition at line 184 of file LBNodeAccess.impl.hpp.

References walberla::get_block_and_cell(), walberla::lbm::accessor::Force::set(), and stream.

◆ set_node_population()

template<typename FloatType , lbmpy::Arch Architecture>

bool walberla::LBWalberlaImpl< FloatType, Architecture >::set_node_population	(	Utils::Vector3i const &	node,
		std::vector< double > const &	population
	)

overridevirtual

Implements LBWalberlaBase.

Definition at line 131 of file LBNodeAccess.impl.hpp.

References walberla::get_block_and_cell(), walberla::lbm::accessor::Population::set(), and stream.

◆ set_node_velocity()

template<typename FloatType , lbmpy::Arch Architecture>

bool walberla::LBWalberlaImpl< FloatType, Architecture >::set_node_velocity	(	Utils::Vector3i const &	node,
		Utils::Vector3d const &	v
	)

overridevirtual

Implements LBWalberlaBase.

Definition at line 60 of file LBNodeAccess.impl.hpp.

References walberla::get_block_and_cell(), walberla::lbm::accessor::Velocity::set(), and stream.

◆ set_node_velocity_at_boundary()

template<typename FloatType , lbmpy::Arch Architecture>

bool walberla::LBWalberlaImpl< FloatType, Architecture >::set_node_velocity_at_boundary	(	Utils::Vector3i const &	node,
		Utils::Vector3d const &	velocity
	)

overridevirtual

Implements LBWalberlaBase.

Definition at line 48 of file LBBoundaryAccess.impl.hpp.

References walberla::get_block_and_cell(), stream, and velocity().

◆ set_rng_state()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::set_rng_state ( uint64_t counter )

inlineoverridevirtual

Implements LBWalberlaBase.

Definition at line 740 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::m_collision_model, walberla::LBWalberlaImpl< FloatType, Architecture >::m_kT, and stream.

◆ set_slice_density()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::set_slice_density	(	Utils::Vector3i const &	lower_corner,
		Utils::Vector3i const &	upper_corner,
		std::vector< double > const &	density
	)

overridevirtual

Implements LBWalberlaBase.

Definition at line 254 of file LBSliceAccess.impl.hpp.

References block(), walberla::copy_block_buffer(), density, walberla::for_each_block_in_slice(), walberla::lbm::accessor::Density::set(), and stream.

◆ set_slice_last_applied_force()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::set_slice_last_applied_force	(	Utils::Vector3i const &	lower_corner,
		Utils::Vector3i const &	upper_corner,
		std::vector< double > const &	force
	)

overridevirtual

Implements LBWalberlaBase.

Definition at line 135 of file LBSliceAccess.impl.hpp.

References block(), walberla::copy_block_buffer(), walberla::for_each_block_in_slice(), walberla::lbm::accessor::Force::set(), and stream.

◆ set_slice_population()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::set_slice_population	(	Utils::Vector3i const &	lower_corner,
		Utils::Vector3i const &	upper_corner,
		std::vector< double > const &	population
	)

overridevirtual

Implements LBWalberlaBase.

Definition at line 197 of file LBSliceAccess.impl.hpp.

References block(), walberla::copy_block_buffer(), walberla::for_each_block_in_slice(), walberla::lbm::accessor::Population::set(), and stream.

◆ set_slice_velocity()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::set_slice_velocity	(	Utils::Vector3i const &	lower_corner,
		Utils::Vector3i const &	upper_corner,
		std::vector< double > const &	velocity
	)

overridevirtual

Implements LBWalberlaBase.

Definition at line 72 of file LBSliceAccess.impl.hpp.

References block(), walberla::copy_block_buffer(), walberla::for_each_block_in_slice(), walberla::lbm::accessor::Velocity::set(), Utils::Vector< T, N >::size(), stream, and velocity().

◆ set_slice_velocity_at_boundary()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::set_slice_velocity_at_boundary	(	Utils::Vector3i const &	lower_corner,
		Utils::Vector3i const &	upper_corner,
		std::vector< std::optional< Utils::Vector3d > > const &	velocity
	)

overridevirtual

Implements LBWalberlaBase.

Definition at line 92 of file LBBoundaryAccess.impl.hpp.

References block(), walberla::copy_block_buffer(), walberla::for_each_block_in_slice(), walberla::get_block_and_cell(), Utils::Vector< T, N >::size(), stream, and velocity().

◆ set_viscosity()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::set_viscosity ( double viscosity )

inlineoverridevirtual

Implements LBWalberlaBase.

Definition at line 710 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::FloatType_c(), and walberla::LBWalberlaImpl< FloatType, Architecture >::m_viscosity.

◆ setup_full_communicator()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::setup_full_communicator ( )

inlineprotected

Set up D3Q27 communicators for full ghost layer updates.

Creates per-field communicators (PDF, velocity, last-applied force) as well as a combined communicator and the boundary communicator.

Definition at line 898 of file LBWalberlaImpl.hpp.

Referenced by walberla::LBWalberlaImpl< FloatType, Architecture >::LBWalberlaImpl().

◆ setup_streaming_communicator()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::setup_streaming_communicator ( )

inlineprotected

Set up the communicator used during integration.

Uses optimized streaming pack info when neither boundaries nor Lees-Edwards boundary conditions are active; falls back to the generic pack info otherwise.

Definition at line 937 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::m_collision_model, walberla::LBWalberlaImpl< FloatType, Architecture >::m_has_boundaries, walberla::LBWalberlaImpl< FloatType, Architecture >::m_last_applied_force_field_id, walberla::LBWalberlaImpl< FloatType, Architecture >::m_lattice, walberla::LBWalberlaImpl< FloatType, Architecture >::m_pdf_field_id, walberla::LBWalberlaImpl< FloatType, Architecture >::m_pdf_streaming_communicator, and stream.

Referenced by walberla::LBWalberlaImpl< FloatType, Architecture >::LBWalberlaImpl().

◆ stencil_size()

template<typename FloatType , lbmpy::Arch Architecture>

std::size_t walberla::LBWalberlaImpl< FloatType, Architecture >::stencil_size ( ) const

inlineoverridevirtualnoexcept

Implements LBWalberlaBase.

Definition at line 223 of file LBWalberlaImpl.hpp.

◆ update_boundary_from_shape()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::update_boundary_from_shape	(	std::vector< int > const &	raster_flat,
		std::vector< double > const &	data_flat
	)

overridevirtual

Set boundary conditions from a rasterized shape.

Parameters

raster_flat	Flattened 3D mask (non-zero = boundary node).
data_flat	Flattened 3D array of slip velocities (3 components per node, same ordering as `raster_flat`).

Implements LBWalberlaBase.

Definition at line 215 of file LBBoundaryAccess.impl.hpp.

References walberla::fill_3D_vector_array(), walberla::set_boundary_from_grid(), and stream.

◆ zero_centered_to_lb()

template<typename FloatType , lbmpy::Arch Architecture>

auto walberla::LBWalberlaImpl< FloatType, Architecture >::zero_centered_to_lb ( auto const & data ) const

inlineprotected

Definition at line 815 of file LBWalberlaImpl.hpp.

References stream, and walberla::LBWalberlaImpl< FloatType, Architecture >::zero_centered_to_lb_in_place().

Referenced by walberla::LBWalberlaImpl< FloatType, Architecture >::set_external_force().

◆ zero_centered_to_lb_in_place()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::zero_centered_to_lb_in_place ( auto & data ) const

inlineprotected

Definition at line 807 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::m_zc_to_lb, and walberla::LBWalberlaImpl< FloatType, Architecture >::zero_centered_transform_impl().

Referenced by walberla::LBWalberlaImpl< FloatType, Architecture >::zero_centered_to_lb().

◆ zero_centered_to_md()

template<typename FloatType , lbmpy::Arch Architecture>

auto walberla::LBWalberlaImpl< FloatType, Architecture >::zero_centered_to_md ( auto const & data ) const

inlineprotected

Definition at line 821 of file LBWalberlaImpl.hpp.

References stream, and walberla::LBWalberlaImpl< FloatType, Architecture >::zero_centered_to_md_in_place().

Referenced by walberla::LBWalberlaImpl< FloatType, Architecture >::get_external_force().

◆ zero_centered_to_md_in_place()

template<typename FloatType , lbmpy::Arch Architecture>

void walberla::LBWalberlaImpl< FloatType, Architecture >::zero_centered_to_md_in_place ( auto & data ) const

inlineprotected

Definition at line 811 of file LBWalberlaImpl.hpp.

References walberla::LBWalberlaImpl< FloatType, Architecture >::m_zc_to_md, and walberla::LBWalberlaImpl< FloatType, Architecture >::zero_centered_transform_impl().

Referenced by walberla::LBWalberlaImpl< FloatType, Architecture >::zero_centered_to_md().

◆ zero_centered_transform_impl()

template<typename FloatType , lbmpy::Arch Architecture>

template<typename T >

void walberla::LBWalberlaImpl< FloatType, Architecture >::zero_centered_transform_impl	(	T &	data,
		auto const	factor
	)		const

inlineprotected

Scale data by a conversion factor (in-place).

Used for zero-centered density representation: LB internally stores density fluctuations around zero, while the user interface uses absolute densities. The conversion factors m_zc_to_md and m_zc_to_lb translate between these representations.

Definition at line 796 of file LBWalberlaImpl.hpp.

References stream.

Referenced by walberla::LBWalberlaImpl< FloatType, Architecture >::zero_centered_to_lb_in_place(), and walberla::LBWalberlaImpl< FloatType, Architecture >::zero_centered_to_md_in_place().