Metis domain decomposition. More...

Inheritance diagram for metisDecomp:

Collaboration diagram for metisDecomp:

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

	metisDecomp (const dictionary &)
	Construct given the decomposition dictionary. More...

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

virtual	~metisDecomp ()
	Destructor. More...

virtual bool	parallelAware () const
	Is method parallel aware (i.e. does it synchronize domains across. More...

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

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

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

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

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

	declareRunTimeSelectionTable (autoPtr, decompositionMethod, dictionary,(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 pointField &points, const scalarField &pointWeights)
	Return for every coordinate the wanted processor number. More...

virtual labelList	decompose (const pointField &)
	Like decompose but with uniform weights on the points. More...

virtual labelList	decompose (const polyMesh &, const pointField &)
	Like decompose but with uniform weights on the points. More...

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

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

labelList	decompose (const polyMesh &mesh, const scalarField &cWeights)
	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 >	New (const dictionary &decompositionDict)
	Return a reference to the selected decomposition method. 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 Attributes inherited from decompositionMethod
const dictionary &	decompositionDict_

label	nProcessors_

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

Detailed Description

Metis domain decomposition.

Source files

Definition at line 46 of file metisDecomp.H.

Constructor & Destructor Documentation

◆ metisDecomp() [1/2]

metisDecomp ( const dictionary & decompositionDict )

Construct given the decomposition dictionary.

Definition at line 76 of file dummyMetisDecomp.C.

◆ metisDecomp() [2/2]

metisDecomp ( const metisDecomp & )

delete

Disallow default bitwise copy construction.

◆ ~metisDecomp()

virtual ~metisDecomp ( )

inlinevirtual

Destructor.

Definition at line 79 of file metisDecomp.H.

Member Function Documentation

◆ TypeName()

TypeName ( "metis" )

Runtime type information.

◆ parallelAware()

virtual bool parallelAware ( ) const

inlinevirtual

Is method parallel aware (i.e. does it synchronize domains across.

proc boundaries)

Implements decompositionMethod.

Definition at line 85 of file metisDecomp.H.

References decompositionMethod::decompose(), mesh, metisDecomp::operator=(), and points.

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◆ decompose() [1/3]

Foam::labelList decompose	(	const polyMesh &	mesh,
		const pointField &	points,
		const scalarField &	pointWeights
	)

virtual

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

mesh connectivity (if needed) Weights get normalised so the minimum value is 1 before truncation to an integer so the weights should be multiples of the minimum value. The overall sum of weights might otherwise overflow.

Implements decompositionMethod.

Definition at line 87 of file dummyMetisDecomp.C.

References Foam::exit(), Foam::FatalError, FatalErrorInFunction, and notImplementedMessage.

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◆ decompose() [2/3]

Foam::labelList decompose	(	const polyMesh &	mesh,
		const labelList &	agglom,
		const pointField &	regionPoints,
		const scalarField &	regionWeights
	)

virtual

Return for every coordinate the wanted processor number. Gets.

passed agglomeration map (from fine to coarse cells) and coarse cell location. Can be overridden by decomposers that provide this functionality natively. See note on weights above.

Reimplemented from decompositionMethod.

Definition at line 101 of file dummyMetisDecomp.C.

References Foam::exit(), Foam::FatalError, FatalErrorInFunction, and notImplementedMessage.

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◆ decompose() [3/3]

Foam::labelList decompose	(	const labelListList &	globalCellCells,
		const pointField &	cc,
		const scalarField &	cWeights
	)

virtual

Return for every coordinate the wanted processor number. Explicitly.

provided mesh connectivity. 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 See note on weights above.

Implements decompositionMethod.

Definition at line 116 of file dummyMetisDecomp.C.

References Foam::exit(), Foam::FatalError, FatalErrorInFunction, and notImplementedMessage.

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