kynema::dof Namespace Reference

Classes
struct	AssembleNodeFreedomMapTable_Beams
	A Kernel for applying a Beam element's freedom signature to all nodes it contains. More...
struct	AssembleNodeFreedomMapTable_Constraints
	A Kernel for applying a constraint's freedom signature to its base and target nodes. More...
struct	AssembleNodeFreedomMapTable_Masses
	A Kernel for applying a mass element's freedom signature to its node. More...
struct	AssembleNodeFreedomMapTable_Springs
	A Kernel for applying a spring element's freedom signature to both of its nodes. More...
struct	ComputeNodeFreedomMapTable
	A Scanning Kernel which to convert the number of active degrees of freedom per node to a pointer map to the start of their degrees of freedom in a serialized global vector. More...
struct	CreateConstraintFreedomTable
	A Kernel that creates the node freedom tables for each the target and base nodes for a given constrain. More...
struct	CreateElementFreedomTable_Beams
	A Kernel that creates the element freedom table which maps each degree of freedom on the beam element to its global component number. More...
struct	CreateElementFreedomTable_Masses
	A Kernel that creates the element freedom table which maps each degree of freedom on the mass element to its global component number. More...
struct	CreateElementFreedomTable_Springs
	A Kernel that creates the element freedom table which maps each degree of freedom on the spring element to its global component number. More...

Enumerations
enum class	FreedomSignature : std::uint8_t { AllComponents = 0b00111111 , JustPosition = 0b00111000 , JustRotation = 0b00000111 , NoComponents = 0b00000000 }
	Represents the active degrees of freedom for a node. More...

Functions
template<typename DeviceType >
void	assemble_node_freedom_allocation_table (State< DeviceType > &state, const Elements< DeviceType > &elements, const Constraints< DeviceType > &constraints)
	Creates the node freedom allocation table in state based on the connectivities defined in the elements and constraints structures.
template<typename DeviceType >
void	compute_node_freedom_map_table (State< DeviceType > &state)
	Compute the node freedom map table, a pointer map to the start of the degrees of freedom ofa given node in a serialized global vector.
template<typename DeviceType >
void	create_constraint_freedom_table (Constraints< DeviceType > &constraints, const State< DeviceType > &state)
	Creates node freedom tables for each the target and base nodes in the constraints.
template<typename DeviceType >
void	create_element_freedom_table (Elements< DeviceType > &elements, const State< DeviceType > &state)
	Creates the element freedom tables for all of the elements in the system.
KOKKOS_INLINE_FUNCTION FreedomSignature	operator| (FreedomSignature x, FreedomSignature y)
	Combines two freedom signatures using bitwise OR.
KOKKOS_INLINE_FUNCTION size_t	count_active_dofs (FreedomSignature x)
	Counts the number of active degrees of freedom in a signature.

Enumeration Type Documentation

FreedomSignature

enum class kynema::dof::FreedomSignature : std::uint8_t

strong

Represents the active degrees of freedom for a node.

Each bit in the 6-bit signature represents a degree of freedom:

• Bits 5-3: Translational DOFs (x, y, z positions)
• Bits 2-0: Rotational DOFs (rx, ry, rz rotations)

Binary format: 0b00[Tz][Ty][Tx][Rz][Ry][Rx]

Enumerator
AllComponents
JustPosition
JustRotation
NoComponents

Function Documentation

assemble_node_freedom_allocation_table()

template<typename DeviceType >

void kynema::dof::assemble_node_freedom_allocation_table ( State< DeviceType > &  state, const Elements< DeviceType > &  elements, const Constraints< DeviceType > &  constraints  )

inline

Creates the node freedom allocation table in state based on the connectivities defined in the elements and constraints structures.

The node freedom allocation table defines which degrees of freedom are defined on which nodes by collecting this information from all elements and constraints which contain this node. The most common action using this information is to query how many degrees of freedom are defined, so this information is also computed.

Template Parameters

DeviceType

The Kokkos device defining where Kynema's structures reside

Parameters

state	A structure containing the node freedom allocation table to be filled
elements	A structure containing all of the elements and their connectivities
constraints	A structure containing all of the constraints and their connectivities

compute_node_freedom_map_table()

template<typename DeviceType >

void kynema::dof::compute_node_freedom_map_table ( State< DeviceType > &  state )

inline

Compute the node freedom map table, a pointer map to the start of the degrees of freedom ofa given node in a serialized global vector.

Template Parameters

DeviceType

The Kokkos Device where the State object resides

Parameters

state

A state object with a completed node freedom allocation table

count_active_dofs()

KOKKOS_INLINE_FUNCTION size_t kynema::dof::count_active_dofs

(

FreedomSignature

x

)

Counts the number of active degrees of freedom in a signature.

Parameters

x	The freedom signature to count

Returns

The number of active degrees of freedom

create_constraint_freedom_table()

template<typename DeviceType >

void kynema::dof::create_constraint_freedom_table ( Constraints< DeviceType > &  constraints, const State< DeviceType > &  state  )

inline

Creates node freedom tables for each the target and base nodes in the constraints.

The constraint freedom table maps each degree of freedom for each node of a constraint to its global degree of freedom number

Template Parameters

DeviceType

The Kokkos Device where constraints and state reside

Parameters

constraints	The Constraints object used to create state's node freedom map table
state	A State object with a completed node freedom map table

create_element_freedom_table()

template<typename DeviceType >

void kynema::dof::create_element_freedom_table ( Elements< DeviceType > &  elements, const State< DeviceType > &  state  )

inline

Creates the element freedom tables for all of the elements in the system.

The element freedom table for each element type maps the degrees of freedom for that element to their global degree of freedom number

Template Parameters

DeviceType

The Kokkos Device where elements and state reside

Parameters

elements	the Elements object used to create state's node freedom map table
state	A State object with a completed node freedom map table

operator|()

KOKKOS_INLINE_FUNCTION FreedomSignature kynema::dof::operator|	(	FreedomSignature	x,
		FreedomSignature	y
	)

Combines two freedom signatures using bitwise OR.

Parameters

x	First freedom signature
y	Second freedom signature

Returns

Combined freedom signature with all DOFs from both inputs enabled