Loading...
Searching...
No Matches
masterCoarsestGAMGProcAgglomeration Class Reference

Processor agglomeration of GAMGAgglomerations. More...

#include <masterCoarsestGAMGProcAgglomeration.H>

Inheritance diagram for masterCoarsestGAMGProcAgglomeration:
Inheritance graph
[legend]
Collaboration diagram for masterCoarsestGAMGProcAgglomeration:
Collaboration graph
[legend]

Public Member Functions

 TypeName ("masterCoarsest")
 Runtime type information.
 masterCoarsestGAMGProcAgglomeration (GAMGAgglomeration &agglom, const dictionary &controlDict)
 Construct given agglomerator and controls.
virtual ~masterCoarsestGAMGProcAgglomeration ()
 Destructor.
virtual bool agglomerate ()
 Modify agglomeration. Return true if modified.
Public Member Functions inherited from GAMGProcAgglomeration
 TypeName ("GAMGProcAgglomeration")
 Runtime type information.
 declareRunTimeSelectionTable (autoPtr, GAMGProcAgglomeration, GAMGAgglomeration,(GAMGAgglomeration &agglom, const dictionary &controlDict),(agglom, controlDict))
 Runtime selection table for pure geometric agglomerators.
 GAMGProcAgglomeration (const GAMGProcAgglomeration &)=delete
 No copy construct.
void operator= (const GAMGProcAgglomeration &)=delete
 No copy assignment.
 GAMGProcAgglomeration (GAMGAgglomeration &agglom, const dictionary &controlDict)
 Construct given agglomerator and controls.
virtual ~GAMGProcAgglomeration ()
 Destructor. Clears allocated communicators.

Additional Inherited Members

Static Public Member Functions inherited from GAMGProcAgglomeration
static autoPtr< GAMGProcAgglomeration > New (const word &type, GAMGAgglomeration &agglom, const dictionary &controlDict)
 Return the selected agglomerator.
Protected Member Functions inherited from GAMGProcAgglomeration
void printStats (Ostream &os, GAMGAgglomeration &agglom) const
 Debug: write agglomeration info.
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.
void clearCommunicators ()
 Clear/free allocated communicators.
Static Protected Member Functions inherited from GAMGProcAgglomeration
static labelListList globalCellCells (const lduMesh &)
 Debug: calculate global cell-cells.
Protected Attributes inherited from GAMGProcAgglomeration
GAMGAgglomeration & agglom_
 Reference to agglomeration.
DynamicList< label > comms_
 Allocated communicators.

Detailed Description

Processor agglomeration of GAMGAgglomerations.

  • by default agglomerates onto the master processor

  • optionally have multiple masters through the nProcessorsPerMaster parameter. e.g.

    p { solver GAMG; tolerance 1e-06; relTol 0.1; smoother GaussSeidel;

    nCellsInCoarsestLevel 10;

    processorAgglomerator masterCoarsest; Groups of 32 cores get combined so each 'master' gets (roughly) 32*nCellsInCoarsestLevel cells. nProcessorsPerMaster 32;

Alternative : specify number of (equi-distributed) masters nMasters 2;

Restart local agglomeration after processor agglomeration. Used as nCellsInCoarsestLevel. Only applicable for pair-wise local agglomeration methods. nCellsInMasterLevel 1; }

Source files

Definition at line 77 of file masterCoarsestGAMGProcAgglomeration.H.

Constructor & Destructor Documentation

◆ masterCoarsestGAMGProcAgglomeration()

masterCoarsestGAMGProcAgglomeration ( GAMGAgglomeration & agglom,
const dictionary & controlDict )

Construct given agglomerator and controls.

Definition at line 43 of file masterCoarsestGAMGProcAgglomeration.C.

References lduMesh::comm(), controlDict(), Foam::exit(), Foam::FatalIOError, FatalIOErrorInFunction, GAMGProcAgglomeration::GAMGProcAgglomeration(), keyType::LITERAL, MeshObject< Mesh, MeshObjectType, Type >::mesh(), UPstream::nProcs(), and Foam::readLabel().

Here is the call graph for this function:

◆ ~masterCoarsestGAMGProcAgglomeration()

~masterCoarsestGAMGProcAgglomeration ( )
virtual

Destructor.

Definition at line 99 of file masterCoarsestGAMGProcAgglomeration.C.

Member Function Documentation

◆ TypeName()

TypeName ( "masterCoarsest" )

Runtime type information.

References controlDict().

Here is the call graph for this function:

◆ agglomerate()

bool agglomerate ( )
virtual

Modify agglomeration. Return true if modified.

Implements GAMGProcAgglomeration.

Definition at line 106 of file masterCoarsestGAMGProcAgglomeration.C.

References GAMGProcAgglomeration::agglom_, GAMGProcAgglomeration::agglomerate(), UList< T >::back(), GAMGAgglomeration::calculateRegionMaster(), lduMesh::comm(), Foam::endl(), Foam::flatOutput(), forAll, Foam::GlobalIOList< Tuple2< scalar, vector > >::typeName, Foam::Info, Foam::invertOneToMany(), lduMesh::lduAddr(), UPstream::myProcNo(), UPstream::newCommunicator(), Foam::nl, UPstream::nProcs(), p, Foam::Pout, GAMGProcAgglomeration::printStats(), UList< T >::size(), and Foam::Zero.

Here is the call graph for this function:
The documentation for this class was generated from the following files: