- the rootProcNo is usually == UPstream::masterNo()

- the type/name for field caching were saved as word, but ensight has
  things like "tensor symm" etc, which do not parse very well as
  'word'. Now save as 'string' type.

  Backwards compatibility is OK since a word token will also be
  readable as string etc.

- makes string reading consistent with fileName reading.

  Related to #3133 to also allow compatibility when reading existing
  dictionaries written with unquoted string contents.

- used defunct "processors/" directory naming, and includes are now
  addressed by the file-handler anyhow.

ENH: support 'tutorials/Alltest -init'

- for copying/creating test directory without running

Problem was that the zero fvMeshSubset constructed did not reset
the distributed flag.

- in renumberMesh replace calculation of a subMesh connectivity
  with calculation of the full mesh connectivity followed by subsetting
  of the full adjacency matrix. This should reduce the overall number of
  operations. (MR !669)

- allow more control over using parallel communication or not.

STYLE: replace PackedListCore.H with in-file definition

topoSet: allow use of 'zone' instead 'set', 'zones' instead of 'sets' in all set sources

See merge request !674

Feature topo set

See merge request !668

mattijs authored 1 year ago and Mark OLESEN committed 1 year ago

- added solidBodyMotionFunctions to topoSet which allows things like
  moving cellSet selection for fvOptions etc.

COMP: relocate solidBodyMotionFunctions to meshTools

Co-authored-by: Kutalmis Bercin <>

Feature overlapping zones

See merge request !670

- provide no_topology() characteristic to avoid triggering potentially
  expensive mesh connectivity calculations when they are not required.

- remove/deprecate unused pointField references from the renumber
  methods. These appear to have crept in from outer similarities
  with decompositionMethod, but have no meaning for renumbering.

- remove/deprecate various unused aggregation renumberings since these
  have been previously replaced by pre-calling calcCellCells, or
  using bandCompression directly.

- make regionFaceOrder for block-wise renumbering optional and
  treat as experimental (ie, default is now disabled).

  The original idea was to sort the intra-region and inter-region faces
  separately. However, this will mostly lead to non-upper triangular
  ordering between regions, which checkMesh and others don't really like.

ENH: add timing information for various renumberMesh stages

ENH: add reset of clockTime and cpuTime increment

...

misc changes for reduced stringstream and MPI overhead

See merge request !672

- particularly useful in these combinations:

  1.
      OCharStream buf;
      // populate

      ISpanStream is(buf.view());
      // parse

  2.
      // read from file
      ifile.getLine(str);

      ISpanStream is(str);
      // parse

  These avoid making a copy of the character content, compared to
  versions with stringstream:

      OStringStream buf;
      IStringStream is(buf.str());

- a few places still used listCombineReduce instead of
  newer constructs (eg allGatherList) with fewer MPI calls.

- align triangulation handling of turbulentDFSEMInlet and
  patchInjectionBase with meshTools/triangulatedPatch
  (will ease future code refactoring)

Improve streaming matrix and internal memory management

See merge request !671

- reduce local overhead prior to sending for master assembly
- non-blocking mode when assembling solution vector
- automatic resizing of pivots

- align member order between template and non-template versions
- move construct, move assignment

ENH: adjust renumbering methods, extend renumberMesh options

See merge request Development/openfoam!669

- renumberMesh now has -dry-run, -write-maps, -no-fields,
  -renumber-method, -renumber-coeffs options.

  * Use -dry-run with -write-maps to visualize the before/after
    effects of renumbering (creates a VTK file).

  * -no-fields to renumber the mesh only.
    This is useful and faster when the input fields are uniform
    and the -overwrite option is specified.

  * -renumber-method allows a quick means of specifying a different
    default renumber method (instead of Cuthill-McKee).

    The -renumber-coeffs option allows passing of dictionary content
    for the method.

    Examples,

       // Different ways to specify reverse Cuthill-McKee

       *  -renumber-method RCM
       *  -renumber-coeffs 'reverse true;'
       *  -renumber-method CuthillMcKee
       *  -renumber-coeffs 'reverse true;'
       *  -renumber-coeffs 'method CuthillMcKee; reverse true;'

       // Other (without dictionary coefficients)
       *  renumberMesh -renu...

- reads file contents into a DynamicList<char>, which can then be
  broadcast, moved to a ICharStream etc.

ENH: eliminate unnecessary duplicate communicator

- in globalMeshData previously had a comm_dup hack to avoid clashes
  with deltaCoeffs calculations. However, this was largely due to a
  manual implementation of reduce() that used point-to-point
  communication. This has since been updated to use an MPI_Allreduce
  and now an MPI_Allgather, neither of which need this hack.