diff --git a/apps/gpu/LBM/DrivenCavity/DrivenCavity.cpp b/apps/gpu/LBM/DrivenCavity/DrivenCavity.cpp
index e14fbc0e4a297fbe4505ee1f8aef16c30c95758a..57b13c76b0189af503da13abfb1435ab1176cdb3 100644
--- a/apps/gpu/LBM/DrivenCavity/DrivenCavity.cpp
+++ b/apps/gpu/LBM/DrivenCavity/DrivenCavity.cpp
@@ -93,6 +93,7 @@ const real dt = (real)1.0e-3; //0.5e-3;
 const uint nx = 64;
 
 std::string path("output/");
+std::string gridPath("grid/");
 
 std::string simulationName("DrivenCavityChim");
 
@@ -174,11 +175,10 @@ void multipleLevel(const std::string& configPath)
 		para->setDevices(std::vector<uint>{(uint)0});
 
         para->setOutputPath( path ); // optional, default is output/
+        para ->setGridPath( gridPath );  // optional, default is grid/
 
         para->setOutputPrefix( simulationName );
 
-        para->setFName(para->getOutputPath() + "/" + para->getOutputPrefix());
-
         para->setPrintFiles(true);
 
         para->setMaxLevel(2);
@@ -211,7 +211,7 @@ void multipleLevel(const std::string& configPath)
 
         ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
-        gridBuilder->writeGridsToVtk(path + "/grid/");
+        gridBuilder->writeGridsToVtk(para->getGridPath());
 
         ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
diff --git a/apps/gpu/LBM/DrivenCavity/configDrivenCavity.txt b/apps/gpu/LBM/DrivenCavity/configDrivenCavity.txt
index 246e6f72841c23957e85bb5d69a449af8d178822..458346a67c7f001580494af1dc9262034613be68 100644
--- a/apps/gpu/LBM/DrivenCavity/configDrivenCavity.txt
+++ b/apps/gpu/LBM/DrivenCavity/configDrivenCavity.txt
@@ -7,16 +7,13 @@
 ##################################################
 #informations for Writing
 ##################################################
-#Path="E:/DrivenCavity/results"
-#Path="F:/Work/Computations/out/DrivenCavity/"
-Path = C:/out/
+#Path = "output/"
 #Prefix="DrivenCavity" 
 #WriteGrid=true
 ##################################################
 #informations for reading
 ##################################################
-#GridPath="E:/DrivenCavity/dummy"
-GridPath="C:"
+#GridPath="grid/"
 
 ##################################################
 #number of grid levels