diff --git a/src/gpu/GridGenerator/grid/GridBuilder/MultipleGridBuilder.cpp b/src/gpu/GridGenerator/grid/GridBuilder/MultipleGridBuilder.cpp
index 22584a764e3a56816c2a7ca97fc028acc597fc16..ffa1aa776327493e94f030b36aa4f587f38713c9 100644
--- a/src/gpu/GridGenerator/grid/GridBuilder/MultipleGridBuilder.cpp
+++ b/src/gpu/GridGenerator/grid/GridBuilder/MultipleGridBuilder.cpp
@@ -602,8 +602,10 @@ void MultipleGridBuilder::findCommunicationIndices(int direction, LbmOrGks lbmOr
 
 void MultipleGridBuilder::findGeoFluidNodes()
 {
+    *logging::out << logging::Logger::INFO_HIGH << "Start findGeoFluidNodes()\n";
     for (uint i = 0; i < grids.size(); i++)
         grids[i]->findMatrixIDsGEO_FLUID();
+    *logging::out << logging::Logger::INFO_HIGH << "Done with findGeoFluidNodes()\n";
 }
 
 const std::vector<uint> *MultipleGridBuilder::getGeoFluidSizes() const