fix some compiling issues

apps/gpu/TGV_3D_GridRef/TGV_3D_GridRef.cpp

@@ -67,7 +67,7 @@
 
 //////////////////////////////////////////////////////////////////////////
 
-#include "VirtualFluids_GPU/Communication/MpiCommunicator.h"
+#include "parallel/MpiCommunicator.h"
 #include "VirtualFluids_GPU/DataStructureInitializer/GridProvider.h"
 #include "VirtualFluids_GPU/DataStructureInitializer/GridReaderFiles/GridReader.h"
 #include "VirtualFluids_GPU/DataStructureInitializer/GridReaderGenerator/GridGenerator.h"
@@ -131,11 +131,12 @@ std::string simulationName("TGV_3D_Gridref_noSqPress");
 
 void multipleLevel(const std::string& configPath)
 {
-    vf::gpu::Communicator& communicator = vf::gpu::MpiCommunicator::getInstance();
+    //vf::gpu::Communicator& communicator = vf::gpu::MpiCommunicator::getInstance();
+    vf::parallel::Communicator &communicator = *vf::parallel::MPICommunicator::getInstance();
 
     vf::basics::ConfigurationFile config;
     config.load(configPath);
-    SPtr<Parameter> para = std::make_shared<Parameter>(communicator.getNumberOfProcess(), communicator.getPID(), &config);
+    SPtr<Parameter> para = std::make_shared<Parameter>(communicator.getNumberOfProcesses(), communicator.getProcessID(), &config);
     BoundaryConditionFactory bcFactory = BoundaryConditionFactory();
     GridScalingFactory scalingFactory = GridScalingFactory();
 

apps/gpu/WTG_RUB/WTG_RUB.cpp

@@ -128,7 +128,7 @@ std::string chooseVariation();
 void multipleLevel(const std::string& configPath)
 {
     vf::parallel::Communicator &communicator = *vf::parallel::MPICommunicator::getInstance();
-    auto gridBuilder = MultipleGridBuilder::makeShared();
+    //auto gridBuilder = MultipleGridBuilder::makeShared();
 
     ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
     ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

src/gpu/VirtualFluids_GPU/Kernel/Compressible/FluidFlow/B15/B15CompressibleNavierStokesBGKplus.cu

@@ -2,7 +2,7 @@
 
 #include "B15CompressibleNavierStokesBGKplus_Device.cuh"
 #include "Parameter/Parameter.h"
-#include "cuda/CudaGrid.h"
+#include "cuda_helper/CudaGrid.h"
 
 std::shared_ptr<B15CompressibleNavierStokesBGKplus> B15CompressibleNavierStokesBGKplus::getNewInstance(std::shared_ptr<Parameter> para, int level)
 {

src/gpu/VirtualFluids_GPU/Kernel/Compressible/FluidFlow/K17/K17CompressibleNavierStokesChimeraLegacy.cu

@@ -2,7 +2,7 @@
 
 #include "Parameter/Parameter.h"
 #include "K17CompressibleNavierStokesChimeraLegacy_Device.cuh"
-#include "cuda/CudaGrid.h"
+#include "cuda_helper/CudaGrid.h"
 
 std::shared_ptr<K17CompressibleNavierStokesChimeraLegacy> K17CompressibleNavierStokesChimeraLegacy::getNewInstance(std::shared_ptr<Parameter> para, int level)
 {

src/gpu/VirtualFluids_GPU/Kernel/Compressible/FluidFlow/K17/K17CompressibleNavierStokesSecondDerivatesFrom5thCumulants.cu

@@ -2,7 +2,7 @@
 
 #include "K17CompressibleNavierStokesSecondDerivatesFrom5thCumulants_Device.cuh"
 #include "Parameter/Parameter.h"
-#include "cuda/CudaGrid.h"
+#include "cuda_helper/CudaGrid.h"
 
 std::shared_ptr<K17CompressibleNavierStokesSecondDerivatesFrom5thCumulants> K17CompressibleNavierStokesSecondDerivatesFrom5thCumulants::getNewInstance(std::shared_ptr<Parameter> para, int level)
 {

src/gpu/VirtualFluids_GPU/Kernel/Incompressible/FluidFlow/K15/K15IncompressibleNavierStokesRotatingVelocityField.cu

@@ -2,7 +2,7 @@
 
 #include "K15IncompressibleNavierStokesRotatingVelocityField_Device.cuh"
 #include "Parameter/Parameter.h"
-#include "cuda/CudaGrid.h"
+#include "cuda_helper/CudaGrid.h"
 
 std::shared_ptr<K15IncompressibleNavierStokesRotatingVelocityField> K15IncompressibleNavierStokesRotatingVelocityField::getNewInstance(std::shared_ptr<Parameter> para, int level)
 {