diff --git a/org.eclipse.stem/analysis/org.eclipse.stem.analysis.automaticexperiment/src/org/eclipse/stem/analysis/automaticexperiment/NelderMeadAlgorithm.java b/org.eclipse.stem/analysis/org.eclipse.stem.analysis.automaticexperiment/src/org/eclipse/stem/analysis/automaticexperiment/NelderMeadAlgorithm.java
index 3ce018a..dfaf715 100644
--- a/org.eclipse.stem/analysis/org.eclipse.stem.analysis.automaticexperiment/src/org/eclipse/stem/analysis/automaticexperiment/NelderMeadAlgorithm.java
+++ b/org.eclipse.stem/analysis/org.eclipse.stem.analysis.automaticexperiment/src/org/eclipse/stem/analysis/automaticexperiment/NelderMeadAlgorithm.java
@@ -412,6 +412,8 @@
 			if(AutomaticExperimentManager.QUIT_NOW) break;
 			*/
 		}
+		fn.getValue(start).copy();
+		fn.done();
 	}
 
 	private void limit(double []vals) {
diff --git a/org.eclipse.stem/analysis/org.eclipse.stem.analysis.automaticexperiment/src/org/eclipse/stem/analysis/automaticexperiment/SimplexAlgorithmExecuter.java b/org.eclipse.stem/analysis/org.eclipse.stem.analysis.automaticexperiment/src/org/eclipse/stem/analysis/automaticexperiment/SimplexAlgorithmExecuter.java
index e0964b8..6ca1359 100644
--- a/org.eclipse.stem/analysis/org.eclipse.stem.analysis.automaticexperiment/src/org/eclipse/stem/analysis/automaticexperiment/SimplexAlgorithmExecuter.java
+++ b/org.eclipse.stem/analysis/org.eclipse.stem.analysis.automaticexperiment/src/org/eclipse/stem/analysis/automaticexperiment/SimplexAlgorithmExecuter.java
@@ -264,7 +264,9 @@
 //				Activator.logInformation(" Error in validation data set is: " + result.getValidationError());
 				resultWriter.write(error+"");
 				resultWriter.write(LS);
-				resultWriter.flush();
+				
+				// after exp is done
+				// resultWriter.flush(); 
 				
 				// TODO: GUI output here
 				
@@ -334,6 +336,16 @@
 			simulation.simulationSleep = false;
 			return simulation;
 		}
+
+		@Override
+		public void done() {
+			try {
+				resultWriter.flush();
+			} catch(IOException ioe) {
+				ioe.printStackTrace();
+			}
+			
+		}
 	}
 }
 
diff --git a/org.eclipse.stem/analysis/org.eclipse.stem.analysis.automaticexperiment/src/org/eclipse/stem/analysis/automaticexperiment/SimplexFunction.java b/org.eclipse.stem/analysis/org.eclipse.stem.analysis.automaticexperiment/src/org/eclipse/stem/analysis/automaticexperiment/SimplexFunction.java
index 6651274..55cf153 100644
--- a/org.eclipse.stem/analysis/org.eclipse.stem.analysis.automaticexperiment/src/org/eclipse/stem/analysis/automaticexperiment/SimplexFunction.java
+++ b/org.eclipse.stem/analysis/org.eclipse.stem.analysis.automaticexperiment/src/org/eclipse/stem/analysis/automaticexperiment/SimplexFunction.java
@@ -18,4 +18,5 @@
 
 public interface SimplexFunction {
 	public ErrorResult getValue(double[] parameters); 
+	public void done();
 }