Store a background polyMesh to use for the decomposition of space and queries for parallel conformalVoronoiMesh. More...

Collaboration diagram for backgroundMeshDecomposition:

[legend]

Public Member Functions
	ClassName ("backgroundMeshDecomposition")
	Runtime type information. More...

	backgroundMeshDecomposition (const Time &runTime, Random &rndGen, const conformationSurfaces &geometryToConformTo, const dictionary &coeffsDict, const fileName &decompDictFile="")
	Construct from components in foamyHexMesh operation. More...

	~backgroundMeshDecomposition ()
	Destructor. More...

autoPtr< mapDistributePolyMesh >	distribute (volScalarField &cellWeights)
	Redistribute the background mesh based on a supplied weight field,. More...

template<typename PointType >
autoPtr< mapDistribute >	distributePoints (List< PointType > &points) const
	Distribute supplied the points to the appropriate processor. More...

bool	positionOnThisProcessor (const point &pt) const
	Is the given position inside the domain of this decomposition. More...

boolList	positionOnThisProcessor (const List< point > &pts) const
	Are the given positions inside the domain of this decomposition. More...

bool	overlapsThisProcessor (const treeBoundBox &box) const
	Does the given box overlap the faces of the boundary of this. More...

bool	overlapsThisProcessor (const point &centre, const scalar radiusSqr) const
	Does the given sphere overlap the faces of the boundary of this. More...

pointIndexHit	findLine (const point &start, const point &end) const
	Find nearest intersection of line between start and end, (exposing. More...

pointIndexHit	findLineAny (const point &start, const point &end) const
	Find any intersection of line between start and end, (exposing. More...

template<typename PointType >
labelList	processorPosition (const List< PointType > &pts) const
	What processor is the given position on? More...

labelList	processorNearestPosition (const List< point > &pts) const
	What is the nearest processor to the given position? More...

List< List< pointIndexHit > >	intersectsProcessors (const List< point > &starts, const List< point > &ends, bool includeOwnProcessor=false) const
	Which processors are intersected by the line segment, returns all. More...

bool	overlapsOtherProcessors (const point &centre, const scalar &radiusSqr) const

labelList	overlapProcessors (const point &centre, const scalar radiusSqr) const

const fvMesh &	mesh () const
	Return access to the underlying mesh. More...

const indexedOctree< treeDataBPatch > &	tree () const
	Return access to the underlying tree. More...

const treeBoundBox &	procBounds () const
	Return the boundBox of this processor. More...

const labelList &	cellLevel () const
	Return the cell level of the underlying mesh. More...

const labelList &	pointLevel () const
	Return the point level of the underlying mesh. More...

Static Public Member Functions
static autoPtr< mapDistribute >	buildMap (const List< label > &toProc)
	Build a mapDistribute for the supplied destination processor data. More...

Private Member Functions
void	initialRefinement ()

void	printMeshData (const polyMesh &mesh) const
	Print details of the decomposed mesh. More...

bool	refineCell (label cellI, volumeType volType, scalar &weightEstimate) const
	Estimate the number of vertices that will be in this cell, returns. More...

labelList	selectRefinementCells (List< volumeType > &volumeStatus, volScalarField &cellWeights) const
	Select cells for refinement at the surface of the geometry to be. More...

void	buildPatchAndTree ()
	Build the surface patch and search tree. More...

	backgroundMeshDecomposition (const backgroundMeshDecomposition &)
	Disallow default bitwise copy construct. More...

void	operator= (const backgroundMeshDecomposition &)
	Disallow default bitwise assignment. More...

Private Attributes
const Time &	runTime_
	Method details dictionary. More...

const conformationSurfaces &	geometryToConformTo_
	Reference to surface. More...

Random &	rndGen_
	Random number generator. More...

fvMesh	mesh_
	Mesh stored on for this processor, specifiying the domain that it. More...

hexRef8	meshCutter_
	Refinement object. More...

autoPtr< bPatch >	boundaryFacesPtr_
	Patch containing an independent representation of the surface of the. More...

autoPtr< indexedOctree< treeDataBPatch > >	bFTreePtr_
	Search tree for the boundaryFaces_ patch. More...

treeBoundBoxList	allBackgroundMeshBounds_
	The bounds of all background meshes on all processors. More...

treeBoundBox	globalBackgroundBounds_
	The overall bounds of all of the background meshes, used to test if. More...

scalar	mergeDist_
	merge distance required by fvMeshDistribute More...

scalar	spanScale_
	Scale of a cell span vs cell size used to decide to refine a cell. More...

scalar	minCellSizeLimit_
	Smallest minimum cell size allowed, i.e. to avoid high initial. More...

label	minLevels_
	Minimum normal level of refinement. More...

label	volRes_
	How fine should the initial sample of the volume a box be to. More...

scalar	maxCellWeightCoeff_
	Allowed factor above the average cell weight before a background. More...

Detailed Description

Store a background polyMesh to use for the decomposition of space and queries for parallel conformalVoronoiMesh.

The requirements are:

To have a decomposition of space which can quickly interrogate an arbitrary location from any processor to reliably and unambiguously determine which processor owns the space that the point is in, i.e. as the vertices move, or need inserted as part of the surface conformation, send them to the correct proc.
To be able to be dynamically built, refined and redistributed to other procs the partitioning as the meshing progresses to balance the load.
To be able to query whether a sphere (the circumsphere of a Delaunay tet) overlaps any part of the space defined by the structure, and whether a ray (Voronoi edge) penetrates any part of the space defined by the structure, this is what determines if points get referred to a processor.

Source files

Definition at line 92 of file backgroundMeshDecomposition.H.

Constructor & Destructor Documentation

◆ backgroundMeshDecomposition() [1/2]

backgroundMeshDecomposition ( const backgroundMeshDecomposition & )

private

Disallow default bitwise copy construct.

◆ backgroundMeshDecomposition() [2/2]

backgroundMeshDecomposition	(	const Time &	runTime,
		Random &	rndGen,
		const conformationSurfaces &	geometryToConformTo,
		const dictionary &	coeffsDict,
		const fileName &	decompDictFile = `""`
	)

Construct from components in foamyHexMesh operation.

◆ ~backgroundMeshDecomposition()

~backgroundMeshDecomposition ( )

Destructor.

Member Function Documentation

◆ initialRefinement()

void initialRefinement ( )

private

◆ printMeshData()

void printMeshData ( const polyMesh & mesh ) const

private

Print details of the decomposed mesh.

◆ refineCell()

bool refineCell	(	label	cellI,
		volumeType	volType,
		scalar &	weightEstimate
	)		const

private

Estimate the number of vertices that will be in this cell, returns.

true if the cell is to be split because of the density ratio inside it

◆ selectRefinementCells()

labelList selectRefinementCells	(	List< volumeType > &	volumeStatus,
		volScalarField &	cellWeights
	)		const

private

Select cells for refinement at the surface of the geometry to be.

meshed

◆ buildPatchAndTree()

void buildPatchAndTree ( )

private

Build the surface patch and search tree.

◆ operator=()

void operator= ( const backgroundMeshDecomposition & )

private

Disallow default bitwise assignment.

◆ ClassName()

ClassName ( "backgroundMeshDecomposition" )

Runtime type information.

◆ buildMap()

static autoPtr<mapDistribute> buildMap ( const List< label > & toProc )

static

Build a mapDistribute for the supplied destination processor data.

◆ distribute()

autoPtr<mapDistributePolyMesh> distribute ( volScalarField & cellWeights )

Redistribute the background mesh based on a supplied weight field,.

returning a map to use to redistribute vertices.

◆ distributePoints()

autoPtr<mapDistribute> distributePoints ( List< PointType > & points ) const

Distribute supplied the points to the appropriate processor.

◆ positionOnThisProcessor() [1/2]

bool positionOnThisProcessor ( const point & pt ) const

Is the given position inside the domain of this decomposition.

◆ positionOnThisProcessor() [2/2]

boolList positionOnThisProcessor ( const List< point > & pts ) const

Are the given positions inside the domain of this decomposition.

◆ overlapsThisProcessor() [1/2]

bool overlapsThisProcessor ( const treeBoundBox & box ) const

Does the given box overlap the faces of the boundary of this.

processor

◆ overlapsThisProcessor() [2/2]

bool overlapsThisProcessor	(	const point &	centre,
		const scalar	radiusSqr
	)		const

Does the given sphere overlap the faces of the boundary of this.

processor

◆ findLine()

pointIndexHit findLine	(	const point &	start,
		const point &	end
	)		const

Find nearest intersection of line between start and end, (exposing.

underlying indexedOctree)

◆ findLineAny()

pointIndexHit findLineAny	(	const point &	start,
		const point &	end
	)		const

Find any intersection of line between start and end, (exposing.

underlying indexedOctree)

◆ processorPosition()

labelList processorPosition ( const List< PointType > & pts ) const

What processor is the given position on?

◆ processorNearestPosition()

labelList processorNearestPosition ( const List< point > & pts ) const

What is the nearest processor to the given position?

◆ intersectsProcessors()

List<List<pointIndexHit> > intersectsProcessors	(	const List< point > &	starts,
		const List< point > &	ends,
		bool	includeOwnProcessor = `false`
	)		const

Which processors are intersected by the line segment, returns all.

processors whose boundary patch is intersected by the sphere. By default this does not return the processor that the query is launched from, it is assumed that the point is on that processor. The index data member of the pointIndexHit is replaced with the processor index.

◆ overlapsOtherProcessors()

bool overlapsOtherProcessors	(	const point &	centre,
		const scalar &	radiusSqr
	)		const

◆ overlapProcessors()

labelList overlapProcessors	(	const point &	centre,
		const scalar	radiusSqr
	)		const

◆ mesh()

const Foam::fvMesh & mesh ( ) const

inline

Return access to the underlying mesh.

Definition at line 28 of file backgroundMeshDecompositionI.H.

References backgroundMeshDecomposition::mesh_.

◆ tree()

const Foam::indexedOctree< Foam::treeDataBPatch > & tree ( ) const

inline

Return access to the underlying tree.

Definition at line 35 of file backgroundMeshDecompositionI.H.

◆ procBounds()

const Foam::treeBoundBox & procBounds ( ) const

inline

Return the boundBox of this processor.

Definition at line 42 of file backgroundMeshDecompositionI.H.

References UPstream::myProcNo().

Here is the call graph for this function:

◆ cellLevel()

const Foam::labelList & cellLevel ( ) const

inline

Return the cell level of the underlying mesh.

Definition at line 48 of file backgroundMeshDecompositionI.H.

◆ pointLevel()

const Foam::labelList & pointLevel ( ) const

inline

Return the point level of the underlying mesh.

Definition at line 54 of file backgroundMeshDecompositionI.H.

Field Documentation

◆ runTime_

const Time& runTime_

private

Method details dictionary.

dictionary coeffsDict_; Reference to runtime

Definition at line 100 of file backgroundMeshDecomposition.H.

◆ geometryToConformTo_

const conformationSurfaces& geometryToConformTo_

private

Reference to surface.

Definition at line 103 of file backgroundMeshDecomposition.H.

◆ rndGen_

Random& rndGen_

private

Random number generator.

Definition at line 106 of file backgroundMeshDecomposition.H.

◆ mesh_

fvMesh mesh_

private

Mesh stored on for this processor, specifiying the domain that it.

is responsible for.

Definition at line 110 of file backgroundMeshDecomposition.H.

Referenced by backgroundMeshDecomposition::mesh().

◆ meshCutter_

hexRef8 meshCutter_

private

Refinement object.

Definition at line 113 of file backgroundMeshDecomposition.H.

◆ boundaryFacesPtr_

autoPtr<bPatch> boundaryFacesPtr_

private

Patch containing an independent representation of the surface of the.

mesh of this processor

Definition at line 117 of file backgroundMeshDecomposition.H.

◆ bFTreePtr_

autoPtr<indexedOctree<treeDataBPatch> > bFTreePtr_

private

Search tree for the boundaryFaces_ patch.

Definition at line 120 of file backgroundMeshDecomposition.H.

◆ allBackgroundMeshBounds_

treeBoundBoxList allBackgroundMeshBounds_

private

The bounds of all background meshes on all processors.

Definition at line 123 of file backgroundMeshDecomposition.H.

◆ globalBackgroundBounds_

treeBoundBox globalBackgroundBounds_

private

The overall bounds of all of the background meshes, used to test if.

a point that is not found on any processor is in the domain at all

Definition at line 127 of file backgroundMeshDecomposition.H.

◆ mergeDist_

scalar mergeDist_

private

merge distance required by fvMeshDistribute

Definition at line 130 of file backgroundMeshDecomposition.H.

◆ spanScale_

scalar spanScale_

private

Scale of a cell span vs cell size used to decide to refine a cell.

Definition at line 133 of file backgroundMeshDecomposition.H.

◆ minCellSizeLimit_

scalar minCellSizeLimit_

private

Smallest minimum cell size allowed, i.e. to avoid high initial.

refinement of areas of small size

Definition at line 137 of file backgroundMeshDecomposition.H.

◆ minLevels_

label minLevels_

private

Minimum normal level of refinement.

Definition at line 140 of file backgroundMeshDecomposition.H.

◆ volRes_

label volRes_

private

How fine should the initial sample of the volume a box be to.

investigate the local cell size

Definition at line 144 of file backgroundMeshDecomposition.H.

◆ maxCellWeightCoeff_

scalar maxCellWeightCoeff_

private

Allowed factor above the average cell weight before a background.

cell needs to be split

Definition at line 148 of file backgroundMeshDecomposition.H.

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

applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/backgroundMeshDecomposition/backgroundMeshDecomposition.H
applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/backgroundMeshDecomposition/backgroundMeshDecompositionI.H

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ backgroundMeshDecomposition() [1/2]

◆ backgroundMeshDecomposition() [2/2]

◆ ~backgroundMeshDecomposition()

Member Function Documentation

◆ initialRefinement()

◆ printMeshData()

◆ refineCell()

◆ selectRefinementCells()

◆ buildPatchAndTree()

◆ operator=()

◆ ClassName()

◆ buildMap()

◆ distribute()

◆ distributePoints()

◆ positionOnThisProcessor() [1/2]

◆ positionOnThisProcessor() [2/2]

◆ overlapsThisProcessor() [1/2]

◆ overlapsThisProcessor() [2/2]

◆ findLine()

◆ findLineAny()

◆ processorPosition()

◆ processorNearestPosition()

◆ intersectsProcessors()

◆ overlapsOtherProcessors()

◆ overlapProcessors()

◆ mesh()

◆ tree()

◆ procBounds()

◆ cellLevel()

◆ pointLevel()

Field Documentation

◆ runTime_

◆ geometryToConformTo_

◆ rndGen_

◆ mesh_

◆ meshCutter_

◆ boundaryFacesPtr_

◆ bFTreePtr_

◆ allBackgroundMeshBounds_

◆ globalBackgroundBounds_

◆ mergeDist_

◆ spanScale_

◆ minCellSizeLimit_

◆ minLevels_

◆ volRes_

◆ maxCellWeightCoeff_