PTScotch domain decomposition. More...
Public Member Functions | |
TypeName ("ptscotch") | |
Runtime type information. More... | |
ptscotchDecomp (const dictionary &decompDict, const word ®ionName="") | |
Construct given decomposition dictionary and optional region name. More... | |
virtual | ~ptscotchDecomp ()=default |
Destructor. More... | |
virtual bool | parallelAware () const |
Is method parallel aware? More... | |
virtual labelList | decompose (const polyMesh &mesh, const pointField &points, const scalarField &pointWeights) const |
Return for every coordinate the wanted processor number. More... | |
virtual labelList | decompose (const polyMesh &mesh, const labelList &agglom, const pointField ®ionPoints, const scalarField ®ionWeights) const |
Return for every coordinate the wanted processor number. More... | |
virtual labelList | decompose (const labelListList &globalCellCells, const pointField &cc, const scalarField &cWeights) const |
Return for every coordinate the wanted processor number. More... | |
virtual labelList | decompose (const pointField &points, const scalarField &pointWeights) const |
Inherit decompose from decompositionMethod. More... | |
virtual labelList | decompose (const pointField &points) const |
Inherit decompose from decompositionMethod. More... | |
virtual labelList | decompose (const polyMesh &mesh, const pointField &points, const scalarField &pointWeights) const=0 |
Inherit decompose from decompositionMethod. More... | |
virtual labelList | decompose (const polyMesh &mesh, const pointField &points) const |
Inherit decompose from decompositionMethod. More... | |
virtual labelList | decompose (const polyMesh &mesh, const labelList &cellToRegion, const pointField ®ionPoints, const scalarField ®ionWeights) const |
Inherit decompose from decompositionMethod. More... | |
virtual labelList | decompose (const polyMesh &mesh, const labelList &cellToRegion, const pointField ®ionPoints) const |
Inherit decompose from decompositionMethod. More... | |
virtual labelList | decompose (const labelListList &globalCellCells, const pointField &cc, const scalarField &cWeights) const=0 |
Inherit decompose from decompositionMethod. More... | |
virtual labelList | decompose (const labelListList &globalCellCells, const pointField &cc) const |
Inherit decompose from decompositionMethod. More... | |
virtual labelList | decompose (const polyMesh &mesh, const scalarField &cellWeights, const boolList &blockedFace, const PtrList< labelList > &specifiedProcessorFaces, const labelList &specifiedProcessor, const List< labelPair > &explicitConnections) const |
Inherit decompose from decompositionMethod. More... | |
labelList | decompose (const polyMesh &mesh, const scalarField &cWeights) const |
Inherit decompose from decompositionMethod. More... | |
Public Member Functions inherited from decompositionMethod | |
TypeName ("decompositionMethod") | |
Runtime type information. More... | |
declareRunTimeSelectionTable (autoPtr, decompositionMethod, dictionary,(const dictionary &decompDict, const word ®ionName),(decompDict, regionName)) | |
decompositionMethod (const dictionary &decompDict, const word ®ionName="") | |
Construct given the decomposition dictionary, optionally region-specific. More... | |
virtual | ~decompositionMethod ()=default |
Destructor. More... | |
label | nDomains () const noexcept |
Number of domains. More... | |
virtual labelList | decompose (const pointField &points, const scalarField &pointWeights) const |
Return the wanted processor number for every coordinate. More... | |
virtual labelList | decompose (const pointField &points) const |
Decompose with uniform weights on the points. More... | |
virtual labelList | decompose (const polyMesh &mesh, const pointField &points) const |
Decompose with uniform weights on the points. More... | |
virtual labelList | decompose (const polyMesh &mesh, const labelList &cellToRegion, const pointField ®ionPoints) const |
Like decompose but with uniform weights on the regions. More... | |
virtual labelList | decompose (const labelListList &globalCellCells, const pointField &cc) const |
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) const |
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) const |
Helper: apply constraints to a decomposition. More... | |
virtual labelList | decompose (const polyMesh &mesh, const scalarField &cellWeights, const boolList &blockedFace, const PtrList< labelList > &specifiedProcessorFaces, const labelList &specifiedProcessor, const List< labelPair > &explicitConnections) const |
labelList | decompose (const polyMesh &mesh, const scalarField &cWeights) const |
Decompose a mesh. More... | |
Additional Inherited Members | |
Static Public Member Functions inherited from decompositionMethod | |
static label | nDomains (const dictionary &decompDict, const word ®ionName="") |
Return region-specific or top-level numberOfSubdomains entry. More... | |
static const dictionary & | optionalRegionDict (const dictionary &decompDict, const word ®ionName) |
Return an optional region-specific dictionary from "regions" sub-dictionary, or dictionary::null on failure. More... | |
static autoPtr< decompositionMethod > | New (const dictionary &decompDict, const word ®ionName="") |
Return a reference to the selected decomposition method, optionally region-specific. 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 Types inherited from decompositionMethod | |
enum | selectionType { DEFAULT = 0, EXACT = 1, MANDATORY = 2, NULL_DICT = 4 } |
Selection type when handling the coefficients dictionary. More... | |
Protected Member Functions inherited from decompositionMethod | |
const dictionary & | findCoeffsDict (const word &coeffsName, int select=selectionType::DEFAULT) const |
Locate coeffsName dictionary or the fallback "coeffs" dictionary. More... | |
Static Protected Member Functions inherited from decompositionMethod | |
static const dictionary & | findCoeffsDict (const dictionary &dict, const word &coeffsName, int select=selectionType::DEFAULT) |
Locate coeffsName dictionary or the fallback "coeffs" dictionary within an enclosing dictionary. More... | |
Protected Attributes inherited from decompositionMethod | |
const dictionary & | decompDict_ |
Top-level decomposition dictionary (eg, decomposeParDict) More... | |
const dictionary & | decompRegionDict_ |
Region-specific decomposition dictionary information. More... | |
label | nDomains_ |
Number of domains for the decomposition. More... | |
PtrList< decompositionConstraint > | constraints_ |
Optional constraints. More... | |
PTScotch domain decomposition.
For the main details about how to define the strategies, see scotchDecomp.
Coefficients dictionary: scotchCoeffs, coeffs.
Nonetheless, when decomposing in parallel, using writeGraph=true
will write out .dgr files for debugging. For example, use these files with
dgpart
as follows:
mpirun -np 4 dgpart 2 'region0_%r.dgr'
where:
Definition at line 64 of file ptscotchDecomp.H.
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explicit |
Construct given decomposition dictionary and optional region name.
Definition at line 70 of file dummyPtscotchDecomp.C.
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virtualdefault |
Destructor.
TypeName | ( | "ptscotch" | ) |
Runtime type information.
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inlinevirtual |
Is method parallel aware?
(i.e. does it synchronize domains across proc boundaries)
Implements decompositionMethod.
Definition at line 133 of file ptscotchDecomp.H.
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virtual |
Return for every coordinate the wanted processor number.
Use the mesh connectivity (if needed). See note on weights in scotchDecomp.H
Implements decompositionMethod.
Definition at line 83 of file dummyPtscotchDecomp.C.
References Foam::exit(), Foam::FatalError, FatalErrorInFunction, and notImplementedMessage.
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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 in scotchDecomp.H
Reimplemented from decompositionMethod.
Definition at line 97 of file dummyPtscotchDecomp.C.
References Foam::exit(), Foam::FatalError, FatalErrorInFunction, and notImplementedMessage.
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virtual |
Return for every coordinate the wanted processor number.
Explicitly provided mesh connectivity. The connectivity is equal to mesh.cellCells() except for
Implements decompositionMethod.
Definition at line 112 of file dummyPtscotchDecomp.C.
References Foam::exit(), Foam::FatalError, FatalErrorInFunction, and notImplementedMessage.
Foam::labelList decompose |
Inherit decompose from decompositionMethod.
Definition at line 1323 of file decompositionMethod.C.
Foam::labelList decompose |
Inherit decompose from decompositionMethod.
Definition at line 1334 of file decompositionMethod.C.
virtual labelList decompose |
Inherit decompose from decompositionMethod.
Foam::labelList decompose |
Inherit decompose from decompositionMethod.
Definition at line 387 of file decompositionMethod.C.
Foam::labelList decompose |
Inherit decompose from decompositionMethod.
Definition at line 399 of file decompositionMethod.C.
Foam::labelList decompose |
Inherit decompose from decompositionMethod.
Definition at line 440 of file decompositionMethod.C.
virtual labelList decompose |
Inherit decompose from decompositionMethod.
Foam::labelList decompose |
Inherit decompose from decompositionMethod.
Definition at line 459 of file decompositionMethod.C.
Foam::labelList decompose |
Inherit decompose from decompositionMethod.
Definition at line 858 of file decompositionMethod.C.
Foam::labelList decompose |
Inherit decompose from decompositionMethod.
Definition at line 1269 of file decompositionMethod.C.
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