ENH: mixerVesselAMI2D: set-up to use GAMG and optional parallel running

tutorials/incompressible/pimpleDyMFoam/mixerVesselAMI2D/makeMesh

@@ -3,3 +3,4 @@ set -x
 
 m4 < constant/polyMesh/blockMeshDict.m4 > constant/polyMesh/blockMeshDict
 blockMesh > log.blockMesh 2>&1
+topoSet

tutorials/incompressible/pimpleDyMFoam/mixerVesselAMI2D/system/decomposeParDict

@@ -14,16 +14,12 @@ FoamFile
     object      decomposeParDict;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-/*
-preservePatches
-(
-    AMI1
-    AMI2
-);
-*/
+
+singleProcessorFaceSets ((AMI -1));
+
 numberOfSubdomains 4;
 
-method          simple;
+method          scotch;
 
 simpleCoeffs
 {

tutorials/incompressible/pimpleDyMFoam/mixerVesselAMI2D/system/fvSolution

@@ -19,16 +19,22 @@ solvers
 {
     pcorr
     {
-        solver          PCG;
-        preconditioner  DIC;
+        solver          GAMG;
+        smoother        GaussSeidel;
+        nPreSweeps      0;
+        nPostSweeps     2;
+        cacheAgglomeration off;
+        agglomerator    faceAreaPair;
+        nCellsInCoarsestLevel 10;
+        mergeLevels      1;
+
         tolerance       0.02;
         relTol          0;
     }
 
     p
     {
-        solver          PCG;
-        preconditioner  DIC;
+        $pcorr;
         tolerance       1e-06;
         relTol          0.01;
     }
@@ -66,8 +72,8 @@ solvers
 
 PIMPLE
 {
-    correctPhi          yes;
-    nOuterCorrectors    3;
+    correctPhi          no;
+    nOuterCorrectors    2;
     nCorrectors         1;
     nNonOrthogonalCorrectors 0;
 

tutorials/incompressible/pimpleDyMFoam/mixerVesselAMI2D/system/topoSetDict

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      topoSetDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+actions
+(
+    // Get both sides of ami
+    // ~~~~~~~~~~~~~~~~~~~~~
+
+    // Get all faces in cellSet
+    {
+        name    AMI;
+        type    faceSet;
+        action  new;
+        source  patchToFace;
+        sourceInfo
+        {
+            name "AMI.*";
+        }
+    }
+);
+
+// ************************************************************************* //