Various mesh related information for a parallel run. Upon construction constructs all info by using parallel communication. More...
#include <OpenFOAM/globalMeshData.H>
Various mesh related information for a parallel run. Upon construction constructs all info by using parallel communication.
The shared point addressing is quite interesting. It gives on each processor the vertices that cannot be set using a normal swap on processor patches. These are the vertices that are shared between more than 2 processors.
There is an issue with these shared vertices if they originate from cyclics (i.e. are now separated processor patches). They will all be mapped to the same global point (so even though the processor points are not on the same location) since topologically they are one and the same.
So if you ask for sharedPoints() you get only one of the coordinates of the topologically shared points.
All the hard work of these shared points is done by the globalPoints class.
Shared edges: similar to shared points gives on all processors the edges that are shared between more than two patches (i.e. the edges on which data cannot be synchronized by a straightforward edge data swap). Note that shared edges will use shared points but not all edges between shared points need to be shared edges (e.g. there might be an edge connecting two disconnected regions of shared points).
Currently an edge is considered shared if it uses two shared points and is used more than once. This is not correct on processor patches but it only slightly overestimates the number of shared edges. Doing full analysis of how many patches use the edge would be too complicated.
Shared edge calculation is demand driven so always make sure to have your first call to one of the access functions synchronous amongst all processors!
Definition at line 96 of file globalMeshData.H.
Inheritance diagram for globalMeshData: Collaboration diagram for globalMeshData:Classes | |
| class | plusEqOp |
Public Member Functions | |
| ClassName ("globalMeshData") | |
| Runtime type information.
| |
| globalMeshData (const polyMesh &mesh) | |
| Construct from mesh, derive rest (does parallel communication!)
| |
| globalMeshData (const IOobject &io, const polyMesh &mesh) | |
| Old behaviour: read constructor given IOobject and a polyMesh.
| |
| ~globalMeshData () | |
| void | clearOut () |
| Remove all demand driven data.
| |
| const polyMesh & | mesh () const |
| Return the mesh reference.
| |
| bool | parallel () const |
| Does the mesh contain processor patches? (also valid when.
| |
| const boundBox & | bb () const |
| label | nTotalPoints () const |
| Return total number of points in decomposed mesh.
| |
| label | nTotalFaces () const |
| Return total number of faces in decomposed mesh.
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| label | nTotalCells () const |
| Return total number of cells in decomposed mesh.
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| const labelList & | processorPatches () const |
| Return list of processor patch labels.
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| const labelList & | processorPatchIndices () const |
| Return list of indices into processorPatches_ for each patch.
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| const labelList & | processorPatchNeighbours () const |
| Return processorPatchIndices of the neighbours.
| |
| label | nGlobalPoints () const |
| Return number of globally shared points.
| |
| const labelList & | sharedPointLabels () const |
| Return indices of local points that are globally shared.
| |
| const labelList & | sharedPointAddr () const |
| Return addressing into the complete globally shared points.
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| const labelList & | sharedPointGlobalLabels () const |
| Return shared point global labels. Tries to read.
| |
| pointField | sharedPoints () const |
| Collect coordinates of shared points on all processors.
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| pointField | geometricSharedPoints () const |
| Like sharedPoints but keeps cyclic points separate.
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| label | nGlobalEdges () const |
| Return number of globally shared edges. Demand-driven.
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| const labelList & | sharedEdgeLabels () const |
| Return indices of local edges that are globally shared.
| |
| const labelList & | sharedEdgeAddr () const |
| Return addressing into the complete globally shared edge.
| |
| void | movePoints (const pointField &newPoints) |
| Update for moving points.
| |
| void | updateMesh () |
| Change global mesh data given a topological change. Does a.
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| bool | write () const |
Static Public Attributes | |
| static const Foam::scalar | matchTol_ = 1E-8 |
| Geomtric tolerance (fraction of bounding box)
| |
Friends | |
| Ostream & | operator<< (Ostream &, const globalMeshData &) |
| globalMeshData | ( | const polyMesh & | mesh ) |
Construct from mesh, derive rest (does parallel communication!)
Definition at line 439 of file globalMeshData.C.
References globalMeshData::updateMesh().
| globalMeshData | ( | const IOobject & | io, |
| const polyMesh & | mesh | ||
| ) |
Old behaviour: read constructor given IOobject and a polyMesh.
reference. Only use this for testing!
Definition at line 463 of file globalMeshData.C.
References dictionary::lookup(), and globalMeshData::sharedPointGlobalLabels().
| ~globalMeshData | ( | ) |
Definition at line 500 of file globalMeshData.C.
| ClassName | ( | "globalMeshData" | ) |
Runtime type information.
| void clearOut | ( | ) |
Remove all demand driven data.
Definition at line 506 of file globalMeshData.C.
References Foam::deleteDemandDrivenData().
| const polyMesh& mesh | ( | ) | const [inline]
|
Return the mesh reference.
Definition at line 261 of file globalMeshData.H.
| bool parallel | ( | ) | const [inline]
|
Does the mesh contain processor patches? (also valid when.
not running parallel)
Definition at line 268 of file globalMeshData.H.
References List< T >::size().
| const boundBox& bb | ( | ) | const [inline]
|
Definition at line 273 of file globalMeshData.H.
| label nTotalPoints | ( | ) | const [inline]
|
Return total number of points in decomposed mesh.
Definition at line 279 of file globalMeshData.H.
Referenced by inversePointDistanceDiffusivity::correct(), Foam::operator<<(), and meshRefinement::printMeshInfo().
| label nTotalFaces | ( | ) | const [inline]
|
Return total number of faces in decomposed mesh.
Definition at line 285 of file globalMeshData.H.
Referenced by Foam::operator<<(), and meshRefinement::printMeshInfo().
| label nTotalCells | ( | ) | const [inline]
|
Return total number of cells in decomposed mesh.
Definition at line 291 of file globalMeshData.H.
Referenced by inverseFaceDistanceDiffusivity::correct(), Foam::operator<<(), and meshRefinement::printMeshInfo().
| const labelList& processorPatches | ( | ) | const [inline]
|
Return list of processor patch labels.
(size of list = number of processor patches)
Definition at line 301 of file globalMeshData.H.
Referenced by Cloud< ParticleType >::move().
| const labelList& processorPatchIndices | ( | ) | const [inline]
|
Return list of indices into processorPatches_ for each patch.
Index = -1 for non-processor parches. (size of list = number of patches)
Definition at line 309 of file globalMeshData.H.
Referenced by Cloud< ParticleType >::move().
| const labelList& processorPatchNeighbours | ( | ) | const [inline]
|
Return processorPatchIndices of the neighbours.
processor patches. -1 if not running parallel.
Definition at line 316 of file globalMeshData.H.
Referenced by Cloud< ParticleType >::move().
| label nGlobalPoints | ( | ) | const [inline]
|
Return number of globally shared points.
Definition at line 325 of file globalMeshData.H.
Referenced by syncTools::getMasterPoints(), globalPointPatch::globalPointSize(), Foam::operator<<(), syncTools::syncPointList(), and syncTools::syncPointMap().
| const labelList& sharedPointLabels | ( | ) | const [inline]
|
Return indices of local points that are globally shared.
Definition at line 331 of file globalMeshData.H.
Referenced by polyMeshAdder::findSharedPoints(), syncTools::getMasterPoints(), globalPointPatch::meshPoints(), Foam::operator<<(), syncTools::syncEdgeMap(), syncTools::syncPointList(), and syncTools::syncPointMap().
| const labelList& sharedPointAddr | ( | ) | const [inline]
|
Return addressing into the complete globally shared points.
list Note: It is assumed that a (never constructed) complete list of globally shared points exists. The set of shared points on the current processor is a subset of all shared points. Shared point addressing gives the index in the list of all globally shared points for each of the locally shared points.
Definition at line 344 of file globalMeshData.H.
Referenced by polyMeshAdder::findSharedPoints(), syncTools::getMasterPoints(), Foam::operator<<(), globalPointPatch::sharedPointAddr(), syncTools::syncEdgeMap(), syncTools::syncPointList(), and syncTools::syncPointMap().
| const Foam::labelList & sharedPointGlobalLabels | ( | ) | const |
Return shared point global labels. Tries to read.
'pointProcAddressing' and returns list or -1 if none available.
Definition at line 519 of file globalMeshData.C.
References Foam::endl(), forAll, IOobject::MUST_READ, and Foam::Pout.
Referenced by globalMeshData::globalMeshData().
| Foam::pointField sharedPoints | ( | ) | const |
Collect coordinates of shared points on all processors.
(does parallel communication!) Note: not valid for cyclicParallel since shared cyclic points are merged into single global point. (use geometricSharedPoints instead)
Definition at line 565 of file globalMeshData.C.
References PstreamBase::blocking, Pstream::firstSlave(), forAll, Pstream::lastSlave(), Pstream::master(), Pstream::masterNo(), List< T >::size(), and Vector< Cmpt >::zero.
| Foam::pointField geometricSharedPoints | ( | ) | const |
Like sharedPoints but keeps cyclic points separate.
(does geometric merging; uses matchTol_*bb as merging tolerance) Use sharedPoints() instead.
Definition at line 646 of file globalMeshData.C.
References Foam::combineReduce(), forAll, and Foam::mergePoints().
| Foam::label nGlobalEdges | ( | ) | const |
Return number of globally shared edges. Demand-driven.
calculation so call needs to be synchronous among processors!
Definition at line 681 of file globalMeshData.C.
Referenced by syncTools::getMasterEdges(), and syncTools::syncEdgeList().
| const Foam::labelList & sharedEdgeLabels | ( | ) | const |
Return indices of local edges that are globally shared.
Demand-driven calculation so call needs to be synchronous among processors!
Definition at line 691 of file globalMeshData.C.
Referenced by syncTools::getMasterEdges(), and syncTools::syncEdgeList().
| const Foam::labelList & sharedEdgeAddr | ( | ) | const |
Return addressing into the complete globally shared edge.
list. The set of shared edges on the current processor is a subset of all shared edges. Shared edge addressing gives the index in the list of all globally shared edges for each of the locally shared edges. Demand-driven calculation so call needs to be synchronous among processors!
Definition at line 701 of file globalMeshData.C.
Referenced by syncTools::getMasterEdges(), and syncTools::syncEdgeList().
| void movePoints | ( | const pointField & | newPoints ) |
Update for moving points.
Definition at line 711 of file globalMeshData.C.
| void updateMesh | ( | ) |
Change global mesh data given a topological change. Does a.
full parallel analysis to determine shared points and boundaries.
Definition at line 719 of file globalMeshData.C.
References PstreamBase::blocking, Foam::endl(), forAll, PrimitivePatch< Face, FaceList, PointField, PointType >::localPoints(), boundBox::mag(), Pstream::master(), Foam::matchPoints(), PrimitivePatch< Face, FaceList, PointField, PointType >::meshPoints(), Pstream::myProcNo(), processorPolyPatch::neighbProcNo(), globalPoints::nGlobalPoints(), Foam::nl, PrimitivePatch< Face, FaceList, PointField, PointType >::nPoints(), Pstream::parRun(), Foam::Pout, Foam::reduce(), coupledPolyPatch::separated(), coupledPolyPatch::separation(), globalPoints::sharedPointAddr(), globalPoints::sharedPointLabels(), List< T >::size(), Vector< Cmpt >::x(), Vector< Cmpt >::y(), and Vector< Cmpt >::z().
Referenced by globalMeshData::globalMeshData(), and polyMesh::updateMesh().
| bool write | ( | ) | const |
Definition at line 943 of file globalMeshData.C.
References dictionary::add(), IOstream::ASCII, IOstream::currentVersion, IOstream::UNCOMPRESSED, and regIOobject::writeObject().
| Ostream& operator<< | ( | Ostream & | , |
| const globalMeshData & | |||
| ) | [friend]
|
const Foam::scalar matchTol_ = 1E-8 [static]
|
Geomtric tolerance (fraction of bounding box)
Definition at line 235 of file globalMeshData.H.
