Changeset 6728 for trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic.Classification/3.4/SingleObjective

Timestamp:

09/09/11 10:45:50 (13 years ago)

Author:

gkronber

Message:

#1557 implemented parallel evaluation in analyzers using ParallelEnumerable extension methods.

File:

• trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic.Classification/3.4/SingleObjective/SymbolicClassificationSingleObjectiveOverfittingAnalyzer.cs (modified) (1 diff)

trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic.Classification/3.4/SingleObjective/SymbolicClassificationSingleObjectiveOverfittingAnalyzer.cs

@@ -76 +76 @@
     public override IOperation Apply() {
       double[] trainingQuality = QualityParameter.ActualValue.Select(x => x.Value).ToArray();
+      var problemData = ProblemDataParameter.ActualValue;
+      var evaluator = EvaluatorParameter.ActualValue;
       // evaluate on validation partition
       IEnumerable<int> rows = GenerateRowsToEvaluate();
       if (!rows.Any()) return base.Apply();
-
-      IExecutionContext childContext = (IExecutionContext)ExecutionContext.CreateChildOperation(EvaluatorParameter.ActualValue);
-      double[] validationQuality = (from tree in SymbolicExpressionTree
-                                    select EvaluatorParameter.ActualValue.Evaluate(childContext, tree, ProblemDataParameter.ActualValue, rows))
-                                   .ToArray();
+      IExecutionContext childContext = (IExecutionContext)ExecutionContext.CreateChildOperation(evaluator);
+      double[] validationQuality = SymbolicExpressionTree
+        .AsParallel()
+        .Select(t => evaluator.Evaluate(childContext, t, problemData, rows))
+        .ToArray();
       double r = 0.0;
       try {