ENH: parallel: overhaul of parallel mapping

- redistributePar to have almost (complete) functionality of decomposePar+reconstructPar
- low-level distributed Field mapping
- support for mapping surfaceFields (including flipping faces)
- support for decomposing/reconstructing refinement data

applications/utilities/parallelProcessing/decomposePar/domainDecompositionDistribute.C

@@ -3,7 +3,7 @@
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
     \\  /    A nd           | Copyright (C) 2011-2013 OpenFOAM Foundation
-     \\/     M anipulation  |
+     \\/     M anipulation  | Copyright (C) 2015 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -30,6 +30,7 @@ License
 #include "regionSplit.H"
 #include "Tuple2.H"
 #include "faceSet.H"
+#include "decompositionModel.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -39,15 +40,17 @@ void Foam::domainDecomposition::distributeCells()
 
     cpuTime decompositionTime;
 
-    autoPtr<decompositionMethod> decomposePtr = decompositionMethod::New
+    const decompositionModel& method = decompositionModel::New
     (
-        decompositionDict_
+        *this,
+        decompDictFile_
     );
 
+
     scalarField cellWeights;
-    if (decompositionDict_.found("weightField"))
+    if (method.found("weightField"))
     {
-        word weightName = decompositionDict_.lookup("weightField");
+        word weightName = method.lookup("weightField");
 
         volScalarField weights
         (
@@ -64,7 +67,7 @@ void Foam::domainDecomposition::distributeCells()
         cellWeights = weights.internalField();
     }
 
-    cellToProc_ = decomposePtr().decompose(*this, cellWeights);
+    cellToProc_ = method.decomposer().decompose(*this, cellWeights);
 
     Info<< "\nFinished decomposition in "
         << decompositionTime.elapsedCpuTime()