Does hierarchical decomposition of points. Works by first sorting the points in x direction into equal sized bins, then in y direction and finally in z direction. More...

Inheritance diagram for hierarchical:

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Public Member Functions
	TypeName ("hierarchical")
	Runtime type information. More...

	hierarchical (const dictionary &decompositionDict)
	Construct given the decomposition dictionary. More...

	hierarchical (const hierarchical &)=delete
	Disallow default bitwise copy construction. More...

virtual	~hierarchical ()
	Destructor. More...

virtual labelList	decompose (const pointField &, const scalarField &weights)
	Return for every coordinate the wanted processor number. More...

virtual labelList	decompose (const pointField &)
	Without weights. Code for weighted decomposition is a bit complex. More...

virtual labelList	decompose (const polyMesh &mesh, const pointField &cellCentres, const scalarField &cellWeights)
	Return for every coordinate the wanted processor number. Use the. More...

virtual labelList	decompose (const polyMesh &mesh, const pointField &cellCentres)
	Without weights. Code for weighted decomposition is a bit complex. More...

virtual labelList	decompose (const labelListList &globalCellCells, const pointField &cellCentres, const scalarField &cellWeights)
	Return for every coordinate the wanted processor number. Explicitly. More...

virtual labelList	decompose (const labelListList &globalCellCells, const pointField &cc)
	Like decompose but with uniform weights on the cells. More...

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

Public Member Functions inherited from geometric
	geometric (const dictionary &decompositionDict, const word &derivedType)
	Construct given the decomposition dictionary. More...

Public Member Functions inherited from decompositionMethod
	TypeName ("decompositionMethod")
	Runtime type information. More...

	declareRunTimeSelectionTable (autoPtr, decompositionMethod, decomposer,(const dictionary &decompositionDict),(decompositionDict))

	declareRunTimeSelectionTable (autoPtr, decompositionMethod, distributor,(const dictionary &decompositionDict),(decompositionDict))

	decompositionMethod (const dictionary &decompositionDict)
	Construct given the decomposition dictionary. More...

	decompositionMethod (const decompositionMethod &)=delete
	Disallow default bitwise copy construction. More...

virtual	~decompositionMethod ()
	Destructor. More...

label	nDomains () const

virtual labelList	decompose (const polyMesh &mesh, const labelList &cellToRegion, const pointField &regionPoints, const scalarField &regionWeights)
	Return for every coordinate the wanted processor number. Gets. More...

virtual labelList	decompose (const polyMesh &mesh, const labelList &cellToRegion, const pointField &regionPoints)
	Like decompose but with uniform weights on the regions. More...

void	setConstraints (const polyMesh &mesh, boolList &blockedFace, PtrList< labelList > &specifiedProcessorFaces, labelList &specifiedProcessor, List< labelPair > &explicitConnections)
	Helper: extract constraints: More...

void	applyConstraints (const polyMesh &mesh, const boolList &blockedFace, const PtrList< labelList > &specifiedProcessorFaces, const labelList &specifiedProcessor, const List< labelPair > &explicitConnections, labelList &finalDecomp)
	Helper: apply constraints to a decomposition. This gives. More...

virtual labelList	decompose (const polyMesh &mesh, const scalarField &cellWeights, const boolList &blockedFace, const PtrList< labelList > &specifiedProcessorFaces, const labelList &specifiedProcessor, const List< labelPair > &explicitConnections)
	Decompose a mesh with constraints. More...

labelList	decompose (const polyMesh &mesh, const scalarField &cellWeights)
	Decompose a mesh. Apply all constraints from decomposeParDict. More...

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

Additional Inherited Members
Static Public Member Functions inherited from decompositionMethod
static autoPtr< decompositionMethod >	NewDecomposer (const dictionary &decompositionDict)
	Return a reference to the selected decomposition method. More...

static autoPtr< decompositionMethod >	NewDistributor (const dictionary &decompositionDict)
	Return a reference to the selected decomposition method. More...

static IOdictionary	decomposeParDict (const Time &time)
	Read and return the decomposeParDict. More...

static labelList	scaleWeights (const scalarField &weights, label &nWeights, const bool distributed=true)
	Convert the given scalar weights to labels. More...

static void	calcCellCells (const polyMesh &mesh, const labelList &agglom, const label nLocalCoarse, const bool global, CompactListList< label > &cellCells)
	Helper: determine (local or global) cellCells from mesh. More...

static void	calcCellCells (const polyMesh &mesh, const labelList &agglom, const label nLocalCoarse, const bool parallel, CompactListList< label > &cellCells, CompactListList< scalar > &cellCellWeights)
	Helper: determine (local or global) cellCells and face weights. More...

Protected Member Functions inherited from decompositionMethod
label	nWeights (const pointField &points, const scalarField &pointWeights) const
	Return the number of weights per point. More...

label	checkWeights (const pointField &points, const scalarField &pointWeights) const
	Check the weights against the points. More...

Protected Attributes inherited from geometric
const dictionary &	geometricDict_

Vector< label >	n_

scalar	delta_

tensor	rotDelta_

Protected Attributes inherited from decompositionMethod
dictionary	decompositionDict_

label	nProcessors_

PtrList< decompositionConstraint >	constraints_
	Optional constraints. More...

Detailed Description

Does hierarchical decomposition of points. Works by first sorting the points in x direction into equal sized bins, then in y direction and finally in z direction.

Uses single array to hold decomposition which is indexed as if it is a 3 dimensional array:

finalDecomp[i,j,k] is indexed as

i*n[0]*n[1] + j*n[1] + k

E.g. if we're sorting 'xyz': the first sort (over the x-component) determines in which x-domain the point goes. Then for each of the x-domains the points are sorted in y direction and each individual x-domain gets split into three y-domains. And similar for the z-direction.

Since the domains are of equal size the maximum difference in size is n[0]*n[1] (or n[1]*n[2]?) (small anyway)

Source files

Definition at line 67 of file hierarchical.H.

Constructor & Destructor Documentation

◆ hierarchical() [1/2]

hierarchical ( const dictionary & decompositionDict )

Construct given the decomposition dictionary.

Definition at line 774 of file hierarchical.C.

◆ hierarchical() [2/2]

hierarchical ( const hierarchical & )

delete

Disallow default bitwise copy construction.

◆ ~hierarchical()

virtual ~hierarchical ( )

inlinevirtual

Destructor.

Definition at line 174 of file hierarchical.H.

Member Function Documentation

◆ TypeName()

TypeName ( "hierarchical" )

Runtime type information.

◆ decompose() [1/6]

Foam::labelList decompose	(	const pointField &	points,
		const scalarField &	weights
	)

virtual

Return for every coordinate the wanted processor number.

Implements geometric.

Definition at line 728 of file hierarchical.C.

References Foam::e, forAll, Foam::max(), points, and Foam::reduce().

Referenced by hierarchical::decompose().

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◆ decompose() [2/6]

Foam::labelList decompose ( const pointField & points )

virtual

Without weights. Code for weighted decomposition is a bit complex.

so kept separate for now.

Implements geometric.

Definition at line 688 of file hierarchical.C.

References Foam::e, forAll, Foam::max(), points, and Foam::reduce().

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◆ decompose() [3/6]

virtual labelList decompose	(	const polyMesh &	mesh,
		const pointField &	cellCentres,
		const scalarField &	cellWeights
	)

inlinevirtual

Return for every coordinate the wanted processor number. Use the.

mesh connectivity (if needed)

Implements decompositionMethod.

Definition at line 194 of file hierarchical.H.

◆ decompose() [4/6]

virtual labelList decompose	(	const polyMesh &	mesh,
		const pointField &	cellCentres
	)

inlinevirtual

Without weights. Code for weighted decomposition is a bit complex.

so kept separate for now.

Reimplemented from decompositionMethod.

Definition at line 206 of file hierarchical.H.

◆ decompose() [5/6]

virtual labelList decompose	(	const labelListList &	globalCellCells,
		const pointField &	cellCentres,
		const scalarField &	cellWeights
	)

inlinevirtual

Return for every coordinate the wanted processor number. Explicitly.

provided connectivity - does not use mesh_. The connectivity is equal to mesh.cellCells() except for

in parallel the cell numbers are global cell numbers (starting from 0 at processor0 and then incrementing all through the processors)
the connections are across coupled patches

Implements decompositionMethod.

Definition at line 222 of file hierarchical.H.

◆ decompose() [6/6]

virtual labelList decompose	(	const labelListList &	globalCellCells,
		const pointField &	cellCentres
	)

inlinevirtual

Like decompose but with uniform weights on the cells.

Reimplemented from decompositionMethod.

Definition at line 232 of file hierarchical.H.

References hierarchical::decompose().

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◆ operator=()

void operator= ( const hierarchical & )

delete

Disallow default bitwise assignment.

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

src/parallel/decompose/decompositionMethods/hierarchical/hierarchical.H
src/parallel/decompose/decompositionMethods/hierarchical/hierarchical.C

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ hierarchical() [1/2]

◆ hierarchical() [2/2]

◆ ~hierarchical()

Member Function Documentation

◆ TypeName()

◆ decompose() [1/6]

◆ decompose() [2/6]

◆ decompose() [3/6]

◆ decompose() [4/6]

◆ decompose() [5/6]

◆ decompose() [6/6]

◆ operator=()