Introduces a new optional keyword of label type 'log'
to linear-solver dictionaries to enable variable-specific
debug statements. For example, in fvOptions file:

    solvers
    {
        p
        {
            solver GAMG;
            ...
            log    2;
        }

        U
        {
            ...
            log    0;
        }
    }

The meanings of values of 'log' are:

    log    0;    <!--  no output
    log    1;    <!--  standard output
    log    2;    <!--  debug output
    // values higher than 2 are expected to have no effect

This keyword makes various DebugSwitches redundant
or reduces their coverage. The effected DebugSwitches are:

    DebugSwitches
    {
        SolverPerformance    0;
        GAMG                 0;
        PCG                  0;
        PBiCG                0;
        smoothSolver         0;
    }

Kutalmış Berçin authored 3 years ago and Mark OLESEN committed 3 years ago

- need to change requireUpdate_ at the beginning of calculateCache
  otherwise it is not updated for "ALL" selection (causing unnecessary
  repeated calculations). For other modes, it would have tripped
  an error in FULLDEBUG.

- lets function objects catch and handle errors
  (fixes #2144, related to #1779)

- handle failures more robustly
- add static shutdown() for similarity with Pstream etc.

- fix linkage for cellModeller compat methods

- unused, but missed in 40567b84

- all flags before loaders. Avoids "uninitialized when used here"
  warning while preserving the field ownership logic.

- relocate override of updateT basicThermo into constructor body
  for clearer logic and initialization

STYLE: plain bool instead of Switch for dpdt flag

Minor clean-up

Hot fixes for v2106

See merge request !474

ENH: Adding subMesh option to momentumError and div FOs

See merge request !463

sergio authored 3 years ago and Mattijs Janssens committed 3 years ago

1) Adding subMesh capabilities to momentumError and div FOs.
	- A subMesh is created from cellZones.
	- The operators (div, etc) are only calculated in the subMesh.

2) Optionally, halo cells can be added to the cellZones.

3) New helper class to handle the subMesh creation and field mapping.

TUT: multiphase: replace boatAndPropeller with rigidBodyHull

See merge request !473

ENH: less cryptic error message in surfaceWriters::vtkWriter

- fall back to nFields=1 and report the problem.

- add setter/getter methods for the zone selection

- construct for multiple zone selection

- support explicit zone ids instead of name matcher