Pair-wise processor agglomerator. More...

Inheritance diagram for pairGAMGProcAgglomeration:

Collaboration diagram for pairGAMGProcAgglomeration:

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

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

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

virtual	~pairGAMGProcAgglomeration ()
	Destructor. More...

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

void	operator= (const pairGAMGProcAgglomeration &)=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

Pair-wise processor agglomerator.

Neighbouring pairs of processors are agglomerated when the number of agglomerated cells per processor in the level is below minCellsPerProcessor and the pairs chosen based on the largest number of connecting processor faces.

Usage

Example of GAMG solver settings with pair-wise processor agglomeration

p
{
    solver          GAMG;
    smoother        GaussSeidel;

    processorAgglomeration
    {
        agglomerator         pair;
        minCellsPerProcessor 300;
    }

    tolerance       1e-8;
    relTol          0;
}

Source files

Definition at line 76 of file pairGAMGProcAgglomeration.H.

Constructor & Destructor Documentation

◆ pairGAMGProcAgglomeration() [1/2]

pairGAMGProcAgglomeration	(	GAMGAgglomeration &	agglom,
		const dictionary &	dict
	)

Construct given agglomerator and controls.

Definition at line 219 of file pairGAMGProcAgglomeration.C.

◆ pairGAMGProcAgglomeration() [2/2]

pairGAMGProcAgglomeration ( const pairGAMGProcAgglomeration & )

delete

Disallow default bitwise copy construction.

◆ ~pairGAMGProcAgglomeration()

~pairGAMGProcAgglomeration ( )

virtual

Destructor.

Definition at line 232 of file pairGAMGProcAgglomeration.C.

References forAllReverse, and UPstream::freeCommunicator().

Here is the call graph for this function:

Member Function Documentation

◆ TypeName()

TypeName ( "pair" )

Runtime type information.

◆ agglomerate()

bool agglomerate ( )

virtual

Modify agglomeration. Return true if modified.

Implements GAMGProcAgglomeration.

Definition at line 246 of file pairGAMGProcAgglomeration.C.

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

Here is the call graph for this function:

◆ operator=()

void operator= ( const pairGAMGProcAgglomeration & )