globalMeshData.H
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23 
24 Class
25  Foam::globalMeshData
26 
27 Description
28  Various mesh related information for a parallel run. Upon construction,
29  constructs all info using parallel communication.
30 
31  Requires:
32  - all processor patches to have correct ordering.
33  - all processorPatches to have their transforms set.
34 
35  The shared point and edge addressing calculates addressing for points
36  and edges on coupled patches. In the 'old' way a distinction was made
37  between points/edges that are only on two processors and those that are
38  on multiple processors. The problem is that those on multiple processors
39  do not allow any transformations and require a global reduction on the
40  master processor.
41 
42  The alternative is to have an exchange schedule (through a 'mapDistribute')
43  which sends all point/edge data (no distinction is made between
44  those on two and those on more than two coupled patches) to the local
45  'master'. This master then does any calculation and sends
46  the result back to the 'slave' points/edges. This only needs to be done
47  on points on coupled faces. Any transformation is done using a
48  predetermined set of transformations - since transformations have to be
49  space filling only a certain number of transformation is supported.
50 
51  The exchange needs
52  - a field of data
53  - a mapDistribute which does all parallel exchange and transformations
54  This appends remote data to the end of the field.
55  - a set of indices which indicate where to get untransformed data in the
56  field
57  - a set of indices which indicate where to get transformed data in the
58  field
59 
60 Note
61  - compared to 17x nTotalFaces, nTotalPoints do not compensate for
62  shared points since this would trigger full connectivity analysis
63  - most calculation is demand driven and uses parallel communication
64  so make sure to invoke on all processors at the same time
65  - old sharedEdge calculation: currently an edge is considered shared
66  if it uses two shared points and is used more than once. This is not
67  correct on processor patches but it only slightly overestimates the number
68  of shared edges. Doing full analysis of how many patches use the edge
69  would be too complicated
70 
71 See also
72  mapDistribute
73  globalIndexAndTransform
74 
75 SourceFiles
76  globalMeshData.C
77  globalMeshDataTemplates.C
78 
79 \*---------------------------------------------------------------------------*/
80 
81 #ifndef globalMeshData_H
82 #define globalMeshData_H
83 
84 #include "processorTopology.H"
85 #include "labelPair.H"
86 #include "indirectPrimitivePatch.H"
87 
88 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
89 
90 namespace Foam
91 {
92 
93 // Forward declaration of friend functions and operators
94 
95 class polyMesh;
96 class mapDistribute;
97 template<class T> class EdgeMap;
98 class globalIndex;
99 class globalIndexAndTransform;
100 class PackedBoolList;
101 
102 /*---------------------------------------------------------------------------*\
103  Class globalMeshData Declaration
104 \*---------------------------------------------------------------------------*/
106 class globalMeshData
107 :
108  public processorTopology
109 {
110 
111  // Private Data
112 
113  //- Reference to mesh
114  const polyMesh& mesh_;
115 
116 
117  // Data related to the complete mesh
118 
119  //- Total number of points in the complete mesh
120  label nTotalPoints_;
121 
122  //- Total number of faces in the complete mesh
123  label nTotalFaces_;
124 
125  //- Total number of cells in the complete mesh
126  label nTotalCells_;
127 
128 
129  // Processor patch addressing (be careful if not running in parallel!)
130 
131  //- List of processor patch labels
132  // (size of list = number of processor patches)
133  labelList processorPatches_;
134 
135  //- List of indices into processorPatches_ for each patch.
136  // Index = -1 for non-processor patches.
137  // (size of list = number of patches)
138  labelList processorPatchIndices_;
139 
140  //- processorPatchIndices_ of the neighbours processor patches
141  labelList processorPatchNeighbours_;
142 
143 
144  // Coupled point addressing
145  // This is addressing from coupled point to coupled points/faces/cells.
146  // This is a full schedule so includes points used by only two
147  // coupled patches.
148 
149  //- Patch of coupled faces. Additional patch edge to mesh edges
150  // correspondence:
151  // points: meshPoints(), meshPointMap()
152  // edges : meshEdges(), meshEdgeMap()
153  mutable autoPtr<indirectPrimitivePatch> coupledPatchPtr_;
154  mutable autoPtr<labelList> coupledPatchMeshEdgesPtr_;
155  mutable autoPtr<Map<label>> coupledPatchMeshEdgeMapPtr_;
156 
157  //- Global numbering for coupledPatch points
158  mutable autoPtr<globalIndex> globalPointNumberingPtr_;
159 
160  //- Global numbering for transforms
161  mutable autoPtr<globalIndexAndTransform> globalTransformsPtr_;
162 
163  // Coupled point to coupled points
164 
165  mutable autoPtr<labelListList> globalPointSlavesPtr_;
166  mutable autoPtr<labelListList> globalPointTransformedSlavesPtr_;
167  mutable autoPtr<mapDistribute> globalPointSlavesMapPtr_;
168 
169  // Coupled edge to coupled edges
170 
171  mutable autoPtr<globalIndex> globalEdgeNumberingPtr_;
172  mutable autoPtr<labelListList> globalEdgeSlavesPtr_;
173  mutable autoPtr<labelListList> globalEdgeTransformedSlavesPtr_;
174  mutable autoPtr<PackedBoolList> globalEdgeOrientationPtr_;
175  mutable autoPtr<mapDistribute> globalEdgeSlavesMapPtr_;
176 
177 
178  // Coupled point to boundary faces
179 
180  mutable autoPtr<globalIndex> globalBoundaryFaceNumberingPtr_;
181  mutable autoPtr<labelListList> globalPointBoundaryFacesPtr_;
182  mutable autoPtr<labelListList>
183  globalPointTransformedBoundaryFacesPtr_;
184  mutable autoPtr<mapDistribute> globalPointBoundaryFacesMapPtr_;
185 
186  // Coupled point to boundary cells
187 
188  mutable autoPtr<labelList> boundaryCellsPtr_;
189  mutable autoPtr<globalIndex> globalBoundaryCellNumberingPtr_;
190  mutable autoPtr<labelListList> globalPointBoundaryCellsPtr_;
191  mutable autoPtr<labelListList>
192  globalPointTransformedBoundaryCellsPtr_;
193  mutable autoPtr<mapDistribute> globalPointBoundaryCellsMapPtr_;
194 
195 
196  // Other: coupled point to coupled COLLOCATED points
197  mutable autoPtr<labelListList> globalCoPointSlavesPtr_;
198  mutable autoPtr<mapDistribute> globalCoPointSlavesMapPtr_;
199 
200 
201 
202  // Globally shared point addressing
203 
204  //- Total number of global points
205  mutable label nGlobalPoints_;
206 
207  //- Indices of local points that are globally shared
208  mutable autoPtr<labelList> sharedPointLabelsPtr_;
209 
210  //- Indices of globally shared points in the master list
211  // This list contains all the shared points in the mesh
212  mutable autoPtr<labelList> sharedPointAddrPtr_;
213 
214  //- Shared point global labels.
215  // Global point index for every local shared point.
216  // Only valid if constructed with this information or if
217  // pointProcAddressing read.
218  mutable autoPtr<labelList> sharedPointGlobalLabelsPtr_;
219 
220 
221  // Globally shared edge addressing. Derived from shared points.
222  // All demand driven since don't want to construct edges always.
223 
224  //- Total number of global edges
225  mutable label nGlobalEdges_;
226 
227  //- Indices of local edges that are globally shared
228  mutable autoPtr<labelList> sharedEdgeLabelsPtr_;
229 
230  //- Indices of globally shared edge in the master list
231  // This list contains all the shared edges in the mesh
232  mutable autoPtr<labelList> sharedEdgeAddrPtr_;
233 
234 
235  // Private Member Functions
236 
237  //- Set up processor patch addressing
238  void initProcAddr();
239 
240  //- Helper function for shared edge addressing
241  static void countSharedEdges
242  (
243  const EdgeMap<labelList>&,
245  label&
246  );
247 
248  //- Calculate shared point addressing
249  void calcSharedPoints() const;
250 
251  //- Calculate shared edge addressing
252  void calcSharedEdges() const;
253 
254  //- Calculate global point addressing.
255  void calcGlobalPointSlaves() const;
256 
257  // Global edge addressing
258 
259  //- Calculate connected points
260  void calcPointConnectivity(List<labelPairList>&) const;
261 
262  //- Calculate pointEdges and pointPoints addressing
263  void calcGlobalPointEdges
264  (
265  labelListList& globalPointEdges,
266  List<labelPairList>& globalPointPoints
267  ) const;
268 
269  //- Look up remote and local point and find using info the
270  // transforms to go from remotePoint to localPoint
271  label findTransform
272  (
273  const labelPairList& info,
274  const labelPair& remotePoint,
275  const label localPoint
276  ) const;
277 
278  //- Calculate global edge addressing.
279  void calcGlobalEdgeSlaves() const;
280 
281  //- Calculate orientation w.r.t. edge master.
282  void calcGlobalEdgeOrientation() const;
283 
284 
285  // Global boundary face/cell addressing
286 
287  //- Calculate coupled point to uncoupled boundary faces. Local only.
288  void calcPointBoundaryFaces(labelListList&) const;
289 
290  //- Calculate global point to global boundary face addressing.
291  void calcGlobalPointBoundaryFaces() const;
292 
293  //- Calculate global point to global boundary cell addressing.
294  void calcGlobalPointBoundaryCells() const;
295 
296  // Other
297 
298  // Point to collocated points. Note that not all points on
299  // coupled patches now have a master! (since points on either
300  // side of a cyclic are not connected). So check whether the map
301  // reaches all points and decide who is master, slave and who is
302  // its own master. Maybe store as well?
303 
304  void calcGlobalCoPointSlaves() const;
305 
306 
307 public:
308 
309  // Public class
310 
311  // To combineReduce a List. Just appends all lists.
312  template<class T>
313  class ListPlusEqOp
314  {
315 
316  public:
318  void operator()(T& x, const T& y) const
319  {
320  label n = x.size();
321 
322  x.setSize(x.size() + y.size());
323 
324  forAll(y, i)
325  {
326  x[n++] = y[i];
327  }
328  }
329  };
330 
331 
332  //- Runtime type information
333  ClassName("globalMeshData");
334 
335 
336  // Static Data Members
337 
338  //- Geometric tolerance (fraction of bounding box)
339  static const Foam::scalar matchTol_;
340 
341 
342  // Constructors
343 
344  //- Construct from mesh, derive rest (does parallel communication!)
345  globalMeshData(const polyMesh& mesh);
346 
347  //- Disallow default bitwise copy construction
348  globalMeshData(const globalMeshData&) = delete;
349 
350 
351  //- Destructor
352  ~globalMeshData();
353 
354  //- Remove all demand driven data
355  void clearOut();
356 
357 
358  // Member Functions
359 
360  // Access
361 
362  //- Return the mesh reference
363  const polyMesh& mesh() const
364  {
365  return mesh_;
366  }
367 
368  //- Does the mesh contain processor patches? (also valid when
369  // not running parallel)
370  bool parallel() const
371  {
372  return processorPatches_.size() > 0;
373  }
374 
375  //- Return total number of points in decomposed mesh. Not
376  // compensated for duplicate points!
377  label nTotalPoints() const
378  {
379  return nTotalPoints_;
380  }
381 
382  //- Return total number of faces in decomposed mesh. Not
383  // compensated for duplicate faces!
384  label nTotalFaces() const
385  {
386  return nTotalFaces_;
387  }
388 
389  //- Return total number of cells in decomposed mesh.
390  label nTotalCells() const
391  {
392  return nTotalCells_;
393  }
394 
395 
396  // Processor patch addressing (be careful when not running in parallel)
397 
398  //- Return list of processor patch labels
399  // (size of list = number of processor patches)
400  const labelList& processorPatches() const
401  {
402  return processorPatches_;
403  }
404 
405  //- Return list of indices into processorPatches_ for each patch.
406  // Index = -1 for non-processor parches.
407  // (size of list = number of patches)
408  const labelList& processorPatchIndices() const
409  {
410  return processorPatchIndices_;
411  }
412 
413  //- Return processorPatchIndices of the neighbours
414  // processor patches. -1 if not running parallel.
415  const labelList& processorPatchNeighbours() const
416  {
417  return processorPatchNeighbours_;
418  }
419 
420 
421  // Globally shared point addressing
422 
423  //- Return number of globally shared points
424  label nGlobalPoints() const;
425 
426  //- Return indices of local points that are globally shared
427  const labelList& sharedPointLabels() const;
428 
429  //- Return addressing into the complete globally shared points
430  // list
431  // Note: It is assumed that a (never constructed) complete
432  // list of globally shared points exists. The set of shared
433  // points on the current processor is a subset of all shared
434  // points. Shared point addressing gives the index in the
435  // list of all globally shared points for each of the locally
436  // shared points.
437  const labelList& sharedPointAddr() const;
438 
439  //- Return shared point global labels. Tries to read
440  // 'pointProcAddressing' and returns list or -1 if none
441  // available.
442  const labelList& sharedPointGlobalLabels() const;
443 
444  //- Collect coordinates of shared points on all processors.
445  // (does parallel communication!)
446  // Note: not valid for cyclicParallel since shared cyclic points
447  // are merged into single global point. (use geometricSharedPoints
448  // instead)
449  pointField sharedPoints() const;
450 
451  //- Like sharedPoints but keeps cyclic points separate.
452  // (does geometric merging; uses matchTol_*bb as merging tolerance)
453  // Use sharedPoints() instead.
455 
456 
457 
458  // Globally shared edge addressing
459 
460  //- Return number of globally shared edges. Demand-driven
461  // calculation so call needs to be synchronous among processors!
462  label nGlobalEdges() const;
463 
464  //- Return indices of local edges that are globally shared.
465  // Demand-driven
466  // calculation so call needs to be synchronous among processors!
467  const labelList& sharedEdgeLabels() const;
468 
469  //- Return addressing into the complete globally shared edge
470  // list. The set of shared
471  // edges on the current processor is a subset of all shared
472  // edges. Shared edge addressing gives the index in the
473  // list of all globally shared edges for each of the locally
474  // shared edges.
475  // Demand-driven
476  // calculation so call needs to be synchronous among processors!
477  const labelList& sharedEdgeAddr() const;
478 
479 
480 
481  // Global master - slave point communication
482 
483  //- Return patch of all coupled faces
484  const indirectPrimitivePatch& coupledPatch() const;
485 
486  //- Return map from coupledPatch edges to mesh edges
487  const labelList& coupledPatchMeshEdges() const;
488 
489  //- Return map from mesh edges to coupledPatch edges
490  const Map<label>& coupledPatchMeshEdgeMap() const;
491 
492  //- Global transforms numbering
494 
495  //- Helper: synchronise data with transforms
496  template<class Type, class CombineOp, class TransformOp>
497  static void syncData
498  (
500  const labelListList& slaves,
501  const labelListList& transformedSlaves,
502  const mapDistribute& slavesMap,
504  const CombineOp& cop,
505  const TransformOp& top
506  );
507 
508  //- Helper: synchronise data without transforms
509  template<class Type, class CombineOp>
510  static void syncData
511  (
512  List<Type>& pointData,
513  const labelListList& slaves,
514  const labelListList& transformedSlaves,
515  const mapDistribute& slavesMap,
516  const CombineOp& cop
517  );
518 
519 
520  // Coupled point to coupled points. Coupled points are
521  // points on any coupled patch.
522 
523  //- Numbering of coupled points is according to coupledPatch.
524  const globalIndex& globalPointNumbering() const;
525  const labelListList& globalPointSlaves() const;
527  const mapDistribute& globalPointSlavesMap() const;
528  //- Helper to synchronise coupled patch point data
529  template<class Type, class CombineOp, class TransformOp>
530  void syncPointData
531  (
532  List<Type>& pointData,
533  const CombineOp& cop,
534  const TransformOp& top
535  ) const;
536 
537  // Coupled edge to coupled edges.
538 
539  const globalIndex& globalEdgeNumbering() const;
540  const labelListList& globalEdgeSlaves() const;
542  const mapDistribute& globalEdgeSlavesMap() const;
543  //- Is my edge same orientation as master edge
544  const PackedBoolList& globalEdgeOrientation() const;
545 
546  // Collocated point to collocated point
547 
548  const labelListList& globalCoPointSlaves() const;
549  const mapDistribute& globalCoPointSlavesMap() const;
550 
551  // Coupled point to boundary faces. These are uncoupled boundary
552  // faces only but include empty patches.
553 
554  //- Numbering of boundary faces is face-mesh.nInternalFaces()
558  const;
560 
561  // Coupled point to boundary cell
562 
563  //- From boundary cell to mesh cell
564  const labelList& boundaryCells() const;
565 
566  //- Numbering of boundary cells is according to boundaryCells()
570  const;
572 
573 
574  // Other
575 
576  //- Helper for merging (collocated!) mesh point data.
577  // Determines:
578  // - my unique indices
579  // - global numbering over all unique indices
580  // - the global number for all local points (so this will
581  // be local for my unique points)
583  (
584  labelList& pointToGlobal,
585  labelList& uniquePoints
586  ) const;
587 
588  //- Helper for merging (collocated!) patch point data.
589  // Takes maps from:
590  // local points to/from mesh. Determines
591  // - my unique points. These are mesh point indices, not patch
592  // point indices.
593  // - global numbering over all unique indices.
594  // - the global number for all local points.
596  (
597  const labelList& meshPoints,
598  const Map<label>& meshPointMap,
599  labelList& pointToGlobal,
600  labelList& uniqueMeshPoints
601  ) const;
602 
603 
604  // Edit
605 
606  //- Update for moving points.
607  void movePoints(const pointField& newPoints);
608 
609  //- Change global mesh data given a topological change. Does a
610  // full parallel analysis to determine shared points and
611  // boundaries.
612  void updateMesh();
613 
614 
615  // Member Operators
616 
617  //- Disallow default bitwise assignment
618  void operator=(const globalMeshData&) = delete;
619 };
620 
621 
622 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
623 
624 } // End namespace Foam
625 
626 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
627 
628 #ifdef NoRepository
629  #include "globalMeshDataTemplates.C"
630 #endif
631 
632 
633 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
634 
635 #endif
636 
637 // ************************************************************************* //
Variant of pointEdgePoint with some transported additional data. WIP - should be templated on data li...
Definition: pointData.H:61
const labelList & processorPatchIndices() const
Return list of indices into processorPatches_ for each patch.
const labelList & sharedPointLabels() const
Return indices of local points that are globally shared.
const Map< label > & coupledPatchMeshEdgeMap() const
Return map from mesh edges to coupledPatch edges.
const labelListList & globalPointSlaves() const
const mapDistribute & globalCoPointSlavesMap() const
#define forAll(list, i)
Loop across all elements in list.
Definition: UList.H:434
const labelList & processorPatches() const
Return list of processor patch labels.
intWM_LABEL_SIZE_t label
A label is an int32_t or int64_t as specified by the pre-processor macro WM_LABEL_SIZE.
Definition: label.H:59
const labelListList & globalPointTransformedSlaves() const
pointField geometricSharedPoints() const
Like sharedPoints but keeps cyclic points separate.
const globalIndex & globalBoundaryCellNumbering() const
Numbering of boundary cells is according to boundaryCells()
const labelList & sharedPointGlobalLabels() const
Return shared point global labels. Tries to read.
const labelListList & globalPointTransformedBoundaryFaces() const
const mapDistribute & globalEdgeSlavesMap() const
static const Foam::scalar matchTol_
Geometric tolerance (fraction of bounding box)
Various mesh related information for a parallel run. Upon construction, constructs all info using par...
label nTotalPoints() const
Return total number of points in decomposed mesh. Not.
void size(const label)
Override size to be inconsistent with allocated storage.
Definition: ListI.H:163
void clearOut()
Remove all demand driven data.
const mapDistribute & globalPointSlavesMap() const
label nTotalCells() const
Return total number of cells in decomposed mesh.
const labelListList & globalPointBoundaryCells() const
autoPtr< globalIndex > mergePoints(labelList &pointToGlobal, labelList &uniquePoints) const
Helper for merging (collocated!) mesh point data.
const labelListList & globalEdgeSlaves() const
const labelList & coupledPatchMeshEdges() const
Return map from coupledPatch edges to mesh edges.
bool parallel() const
Does the mesh contain processor patches? (also valid when.
const labelListList & globalPointBoundaryFaces() const
Determines processor-processor connection. After instantiation contains on all processors the process...
const labelList & boundaryCells() const
From boundary cell to mesh cell.
label nGlobalEdges() const
Return number of globally shared edges. Demand-driven.
scalar y
A list of faces which address into the list of points.
Calculates a unique integer (label so might not have enough room - 2G max) for processor + local inde...
Definition: globalIndex.H:63
const globalIndex & globalEdgeNumbering() const
label nGlobalPoints() const
Return number of globally shared points.
const labelList & sharedEdgeAddr() const
Return addressing into the complete globally shared edge.
label nTotalFaces() const
Return total number of faces in decomposed mesh. Not.
An ordered pair of two objects of type <T> with first() and second() elements.
Definition: contiguous.H:49
const globalIndexAndTransform & globalTransforms() const
Global transforms numbering.
const PackedBoolList & globalEdgeOrientation() const
Is my edge same orientation as master edge.
const globalIndex & globalPointNumbering() const
Numbering of coupled points is according to coupledPatch.
void operator=(const globalMeshData &)=delete
Disallow default bitwise assignment.
ClassName("globalMeshData")
Runtime type information.
Map from edge (expressed as its endpoints) to value.
Definition: EdgeMap.H:47
~globalMeshData()
Destructor.
const labelList & processorPatchNeighbours() const
Return processorPatchIndices of the neighbours.
void T(FieldField< Field, Type > &f1, const FieldField< Field, Type > &f2)
void movePoints(const pointField &newPoints)
Update for moving points.
const indirectPrimitivePatch & coupledPatch() const
Return patch of all coupled faces.
static void syncData(List< Type > &pointData, const labelListList &slaves, const labelListList &transformedSlaves, const mapDistribute &slavesMap, const globalIndexAndTransform &, const CombineOp &cop, const TransformOp &top)
Helper: synchronise data with transforms.
const labelListList & globalPointTransformedBoundaryCells() const
A bit-packed bool list.
void operator()(T &x, const T &y) const
Class containing processor-to-processor mapping information.
globalMeshData(const polyMesh &mesh)
Construct from mesh, derive rest (does parallel communication!)
void updateMesh()
Change global mesh data given a topological change. Does a.
label n
An auto-pointer similar to the STL auto_ptr but with automatic casting to a reference to the type and...
Definition: PtrList.H:52
Mesh consisting of general polyhedral cells.
Definition: polyMesh.H:74
const mapDistribute & globalPointBoundaryFacesMap() const
const labelList & sharedPointAddr() const
Return addressing into the complete globally shared points.
pointField sharedPoints() const
Collect coordinates of shared points on all processors.
const mapDistribute & globalPointBoundaryCellsMap() const
const polyMesh & mesh() const
Return the mesh reference.
const labelList & sharedEdgeLabels() const
Return indices of local edges that are globally shared.
Namespace for OpenFOAM.
Determination and storage of the possible independent transforms introduced by coupledPolyPatches, as well as all of the possible permutations of these transforms generated by the presence of multiple coupledPolyPatches, i.e. more than one cyclic boundary. Note that any given point can be on maximum 3 transforms only (and these transforms have to be perpendicular)
const labelListList & globalCoPointSlaves() const
const labelListList & globalEdgeTransformedSlaves() const
void syncPointData(List< Type > &pointData, const CombineOp &cop, const TransformOp &top) const
Helper to synchronise coupled patch point data.
const globalIndex & globalBoundaryFaceNumbering() const
Numbering of boundary faces is face-mesh.nInternalFaces()