ENH: parProfiling: add few more functionality to test

tutorials/IO/cavity_parProfiling/README.txt

@@ -1,3 +1,4 @@
 Testcase for parProfiling wrapper linear solver.
-
+- activates parProfiling within the linear solver.
-It only activates parProfiling within the linear solver.
+- tests multiLevel scotch
+- test distributedDI* preconditioners

tutorials/IO/cavity_parProfiling/system/decomposeParDict

@@ -14,14 +14,26 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-numberOfSubdomains  2;
+numberOfSubdomains  20;
-
+method              scotch;
-method  hierarchical;
-
 coeffs
 {
-    n   (2 1 1);
+    // Divide into 20/10=2 nodes
+    domains (10);
+    // Inside a node the communication weight is 1% of that inbetween nodes
+    domainWeights (0.01);
 }
 
 
+
+//numberOfSubdomains  2;
+//
+//method  hierarchical;
+//
+//coeffs
+//{
+//    n   (2 1 1);
+//}
+
+
 // ************************************************************************* //

tutorials/IO/cavity_parProfiling/system/fvSolution.template

@@ -20,7 +20,7 @@ solvers
     {
         solver          parProfiling;
         baseSolver      PCG;
-        preconditioner  DIC;
+        preconditioner  distributedDIC;
         tolerance       1e-06;
         relTol          0.05;
     }
@@ -28,14 +28,16 @@ solvers
     {
         solver          parProfiling;
         baseSolver      PCG;
-        preconditioner  DIC;
+        preconditioner  distributedDIC;
         tolerance       1e-06;
         relTol          0;
     }
     U
     {
-        solver          smoothSolver;
+        //solver          smoothSolver;
-        smoother        symGaussSeidel;
+        //smoother        symGaussSeidel;
+        solver          PBiCGStab;
+        preconditioner  distributedDILU;
         tolerance       1e-05;
         relTol          0;
     }