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ENH: adjust renumbering methods, extend renumberMesh options

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- 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 -renumber-method random

       // Other (with dictionary coefficients)
       renumberMesh \
           -renumber-method spring \
           -renumber-coeffs 'maxCo 0.1; maxIter 1000; freezeFraction 0.99;'

       // Other (with additional libraries)
       renumberMesh -renumber-method zoltan -lib zoltanRenumber

COMP: build zoltan renumbering to MPI-specific location

- zoltan and Sloan renumbering are now longer automatically linked to
  the renumberMesh utility but must be separately loaded by a
  command-line option or through a dictionary "libs" entry.

ENH: add output cellID for decomposePar -dry-run -cellDist
This commit is contained in:
Mark Olesen
2024-03-04 16:48:59 +01:00
parent e7f0628d79
commit 61aaacd088
35 changed files with 1626 additions and 933 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
tutorials/mesh/parallel/cavity/Allrun
View File

@ -18,8 +18,7 @@ runParallel -s CuthillMcKee renumberMesh -overwrite $fileHandler
runParallel -s CuthillMcKee icoFoam $fileHandler
# Bit of bad renumbering and running
runParallel -s random renumberMesh \
-overwrite -dict system/renumberMeshDict-random $fileHandler
runParallel -s random renumberMesh -renumber-method random -overwrite $fileHandler
runParallel -s random icoFoam $fileHandler
# Pick up last result

109
tutorials/mesh/parallel/cavity/system/renumberMeshDict-random
View File

@ -1,109 +0,0 @@
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v2312 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object renumberMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
// Write maps from renumbered back to original mesh
writeMaps true;
// Optional entry: sort cells on coupled boundaries to last for use with
// e.g. nonBlockingGaussSeidel.
sortCoupledFaceCells false;
// Optional entry: renumber on a block-by-block basis. It uses a
// blockCoeffs dictionary to construct a decompositionMethod to do
// a block subdivision) and then applies the renumberMethod to each
// block in turn. This can be used in large cases to keep the blocks
// fitting in cache with all the cache misses bunched at the end.
// This number is the approximate size of the blocks - this gets converted
// to a number of blocks that is the input to the decomposition method.
//blockSize 1000;
// Optional entry: sort points into internal and boundary points
//orderPoints false;
// Optional: suppress renumbering cellSets,faceSets,pointSets
//renumberSets false;
//method CuthillMcKee;
//method Sloan;
//method manual;
method random;
//method structured;
//method spring;
//method zoltan; // only if compiled with zoltan support
//CuthillMcKeeCoeffs
//{
// // Reverse CuthillMcKee (RCM) or plain
// reverse true;
//}
manualCoeffs
{
// In system directory: new-to-original (i.e. order) labelIOList
dataFile "cellMap";
}
// For extruded (i.e. structured in one direction) meshes
structuredCoeffs
{
// Patches that mesh was extruded from. These determine the starting
// layer of cells
patches (movingWall);
// Method to renumber the starting layer of cells
method random;
// Renumber in columns (depthFirst) or in layers
depthFirst true;
// Reverse ordering
reverse false;
}
springCoeffs
{
// Maximum jump of cell indices. Is fraction of number of cells
maxCo 0.01;
// Limit the amount of movement; the fraction maxCo gets decreased
// with every iteration
freezeFraction 0.999;
// Maximum number of iterations
maxIter 1000;
}
blockCoeffs
{
method scotch;
//method hierarchical;
//hierarchicalCoeffs
//{
// n (1 2 1);
//}
}
zoltanCoeffs
{
ORDER_METHOD LOCAL_HSFC;
}
// ************************************************************************* //

1
tutorials/preProcessing/decompositionConstraints/geometric/Allclean
View File

@ -6,6 +6,5 @@ cd "${0%/*}" || exit # Run from this directory
cleanCase0
rm -rf constant/triSurface
rm -f cellDist.vtu
#------------------------------------------------------------------------------