Public Member Functions | List of all members
hierarchGeomDecomp Class Reference

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...

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Public Member Functions

 TypeName ("hierarchical")
 Runtime type information. More...
 
 hierarchGeomDecomp (const dictionary &decompositionDict)
 Construct given the decomposition dictionary. More...
 
virtual ~hierarchGeomDecomp ()
 Destructor. More...
 
virtual bool parallelAware () const
 Hierarchgeom is aware of processor boundaries. 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 &cc, const scalarField &cWeights)
 Return for every coordinate the wanted processor number. Use the. More...
 
virtual labelList decompose (const polyMesh &mesh, const pointField &cc)
 Without weights. Code for weighted decomposition is a bit complex. More...
 
virtual labelList decompose (const labelListList &globalCellCells, const pointField &cc, const scalarField &cWeights)
 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...
 
- Public Member Functions inherited from geomDecomp
 geomDecomp (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, dictionary,( const dictionary &decompositionDict ),(decompositionDict))
 
 decompositionMethod (const dictionary &decompositionDict)
 Construct given the decomposition dictionary. 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...
 
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...
 

Additional Inherited Members

- Static Public Member Functions inherited from decompositionMethod
static autoPtr< decompositionMethodNew (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...
 
- Protected Attributes inherited from geomDecomp
const dictionarygeomDecomDict_
 
Vector< labeln_
 
scalar delta_
 
tensor rotDelta_
 
- Protected Attributes inherited from decompositionMethod
const dictionarydecompositionDict_
 
label nProcessors_
 

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 66 of file hierarchGeomDecomp.H.

Constructor & Destructor Documentation

hierarchGeomDecomp ( const dictionary decompositionDict)

Construct given the decomposition dictionary.

Definition at line 766 of file hierarchGeomDecomp.C.

virtual ~hierarchGeomDecomp ( )
inlinevirtual

Destructor.

Definition at line 174 of file hierarchGeomDecomp.H.

Member Function Documentation

TypeName ( "hierarchical"  )

Runtime type information.

virtual bool parallelAware ( ) const
inlinevirtual

Hierarchgeom is aware of processor boundaries.

Implements decompositionMethod.

Definition at line 181 of file hierarchGeomDecomp.H.

References hierarchGeomDecomp::decompose().

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

Return for every coordinate the wanted processor number.

Implements geomDecomp.

Definition at line 722 of file hierarchGeomDecomp.C.

References Foam::e, forAll, Foam::max(), Foam::reduce(), and List< T >::size().

Referenced by hierarchGeomDecomp::decompose(), and hierarchGeomDecomp::parallelAware().

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Foam::labelList decompose ( const pointField points)
virtual

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

so kept separate for now.

Implements geomDecomp.

Definition at line 682 of file hierarchGeomDecomp.C.

References hierarchGeomDecomp::decompose(), Foam::e, forAll, Foam::max(), Foam::reduce(), and List< T >::size().

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virtual labelList decompose ( const polyMesh mesh,
const pointField cc,
const scalarField cWeights 
)
inlinevirtual

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

mesh connectivity (if needed)

Implements decompositionMethod.

Definition at line 201 of file hierarchGeomDecomp.H.

References hierarchGeomDecomp::decompose().

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virtual labelList decompose ( const polyMesh mesh,
const pointField cc 
)
inlinevirtual

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

so kept separate for now.

Reimplemented from decompositionMethod.

Definition at line 212 of file hierarchGeomDecomp.H.

virtual labelList decompose ( const labelListList globalCellCells,
const pointField cc,
const scalarField cWeights 
)
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 225 of file hierarchGeomDecomp.H.

References hierarchGeomDecomp::decompose().

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virtual labelList decompose ( const labelListList globalCellCells,
const pointField cc 
)
inlinevirtual

Like decompose but with uniform weights on the cells.

Reimplemented from decompositionMethod.

Definition at line 235 of file hierarchGeomDecomp.H.

References hierarchGeomDecomp::decompose().

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