Sequential processor agglomeration agglomerates 2^mergeLevels sequential groups of processors into the minimum processor index of the group. More...

Inheritance diagram for sequentialGAMGProcAgglomeration:

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Collaboration diagram for sequentialGAMGProcAgglomeration:

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

	sequentialGAMGProcAgglomeration (GAMGAgglomeration &agglom, const dictionary &dict)
	Construct given agglomerator and controls. More...

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

virtual	~sequentialGAMGProcAgglomeration ()
	Destructor. More...

virtual bool	agglomerate ()
	Modify agglomeration. Return true if modified. More...

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

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

	declareRunTimeSelectionTable (autoPtr, GAMGProcAgglomeration, GAMGAgglomeration,(GAMGAgglomeration &agglom, const dictionary &dict),(agglom, dict))
	Runtime selection table for pure geometric agglomerators. More...

	GAMGProcAgglomeration (GAMGAgglomeration &agglom, const dictionary &dict)
	Construct given agglomerator and controls. More...

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

virtual	~GAMGProcAgglomeration ()
	Destructor. More...

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

Additional Inherited Members
Static Public Member Functions inherited from GAMGProcAgglomeration
static autoPtr< GAMGProcAgglomeration >	New (GAMGAgglomeration &agglom, const dictionary &dict)
	Return the selected agglomerator. More...

Protected Member Functions inherited from GAMGProcAgglomeration
void	printStats (Ostream &os, GAMGAgglomeration &agglom) const
	Debug: write agglomeration info. More...

bool	agglomerate (const label fineLevelIndex, const labelList &procAgglomMap, const labelList &masterProcs, const List< label > &agglomProcIDs, const label procAgglomComm)
	Agglomerate a level. Return true if anything has changed. More...

Static Protected Member Functions inherited from GAMGProcAgglomeration
static labelListList	globalCellCells (const lduMesh &)
	Debug: calculate global cell-cells. More...

Protected Attributes inherited from GAMGProcAgglomeration
GAMGAgglomeration &	agglom_
	Reference to agglomeration. More...

Detailed Description

Sequential processor agglomeration agglomerates 2^mergeLevels sequential groups of processors into the minimum processor index of the group.

Note that no account is taken of the processor connectivity so the processors in the agglomerated groups may or may not be connected depending on the decomposition ordering.

To directly account for processor connectivity use Foam::pairGAMGProcAgglomeration.

Usage

Example of GAMG solver settings with sequential processor agglomeration

p
{
    solver          GAMG;
    smoother        GaussSeidel;

    processorAgglomeration
    {
        agglomerator         sequential;
    }

    tolerance       1e-8;
    relTol          0;
}

See also: Foam::pairGAMGProcAgglomeration

Source files

Definition at line 78 of file sequentialGAMGProcAgglomeration.H.

Constructor & Destructor Documentation

◆ sequentialGAMGProcAgglomeration() [1/2]

sequentialGAMGProcAgglomeration	(	GAMGAgglomeration &	agglom,
		const dictionary &	dict
	)

Construct given agglomerator and controls.

Definition at line 47 of file sequentialGAMGProcAgglomeration.C.

◆ sequentialGAMGProcAgglomeration() [2/2]

sequentialGAMGProcAgglomeration ( const sequentialGAMGProcAgglomeration & )

delete

Disallow default bitwise copy construction.

◆ ~sequentialGAMGProcAgglomeration()

~sequentialGAMGProcAgglomeration ( )

virtual

Destructor.

Definition at line 60 of file sequentialGAMGProcAgglomeration.C.

References forAllReverse, and UPstream::freeCommunicator().

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Member Function Documentation

◆ TypeName()

TypeName ( "sequential" )

Runtime type information.

◆ agglomerate()

bool agglomerate ( )

virtual

Modify agglomeration. Return true if modified.

Implements GAMGProcAgglomeration.

Definition at line 75 of file sequentialGAMGProcAgglomeration.C.

References GAMGProcAgglomeration::agglomerate(), UPstream::allocateCommunicator(), GAMGAgglomeration::calculateRegionMaster(), lduMesh::comm(), Foam::endl(), forAll, UList< T >::last(), UPstream::myProcNo(), Foam::nl, UPstream::nProcs(), and Foam::Pout.

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◆ operator=()

void operator= ( const sequentialGAMGProcAgglomeration & )