add CUDA_ComplexGeometry

-Also modify List.h

apps/benchmarks/CMakeLists.txt

 add_subdirectory( ComplexGeometry )
 add_subdirectory( ComplexGeometryList )
+add_subdirectory( CUDA_ComplexGeometryList )
 add_subdirectory( MeshDistance )
 add_subdirectory( CouetteFlow )
 add_subdirectory( ForcesOnSphereNearPlaneInShearFlow )

apps/benchmarks/CUDA_ComplexGeometryList/CMakeLists.txt

+
+execute_process( COMMAND ${CMAKE_COMMAND} -E create_symlink 
+                 ${CMAKE_CURRENT_SOURCE_DIR}/input.dat
+                 ${CMAKE_CURRENT_BINARY_DIR}/input.dat )
+
+waLBerla_add_executable ( NAME    CUDA_ComplexGeometryList
+                          FILES   CUDA_ComplexGeometryList.cpp CUDA_ComplexGeometryList.h
+                          DEPENDS blockforest boundary core domain_decomposition field geometry mesh lbm postprocessing timeloop vtk simd cuda gui)

apps/benchmarks/CUDA_ComplexGeometryList/CUDA_ComplexGeometryList.cpp

+//======================================================================================================================
+//
+//  This file is part of waLBerla. waLBerla is free software: you can
+//  redistribute it and/or modify it under the terms of the GNU General Public
+//  License as published by the Free Software Foundation, either version 3 of
+//  the License, or (at your option) any later version.
+//
+//  waLBerla is distributed in the hope that it will be useful, but WITHOUT
+//  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+//  for more details.
+//
+//  You should have received a copy of the GNU General Public License along
+//  with waLBerla (see COPYING.txt). If not, see <http://www.gnu.org/licenses/>.
+//
+//! \file ComplexGeometryList.cpp
+//! \author Christian Godenschwager <christian.godenschwager@fau.de>
+//
+//======================================================================================================================
+
+#include "blockforest/communication/UniformBufferedScheme.h"
+
+#include "core/Abort.h"
+#include "core/Environment.h"
+#include "core/config/Config.h"
+#include "core/mpi/MPIManager.h"
+#include "core/timing/RemainingTimeLogger.h"
+
+#include "lbm/lattice_model/CollisionModel.h"
+#include "lbm/lattice_model/D3Q19.h"
+#include "lbm/list/CellCounters.h"
+#include "lbm/list/List.h"
+#include "lbm/list/ListCommunication.h"
+#include "lbm/list/ListKernel.h"
+#include "lbm/list/ListPressureBoundary.h"
+#include "lbm/list/ListVTK.h"
+#include "lbm/PerformanceEvaluation.h"
+#include "lbm/BlockForestEvaluation.h"
+
+#include "mesh/TriangleMeshes.h"
+#include "mesh/MeshOperations.h"
+#include "mesh/DistanceComputations.h"
+#include "mesh/MeshIO.h"
+#include "mesh/MatrixVectorOperations.h"
+#include "mesh/blockforest/BlockForestInitialization.h"
+#include "mesh/blockforest/BlockWorkloadMemory.h"
+#include "mesh/blockforest/BlockExclusion.h"
+#include "mesh/blockforest/RefinementSelection.h"
+#include "mesh/distance_octree/DistanceOctree.h"
+#include "mesh/boundary/BoundarySetup.h"
+#include "mesh/boundary/BoundaryInfo.h"
+#include "mesh/boundary/BoundaryLocation.h"
+#include "mesh/boundary/BoundaryUIDFaceDataSource.h"
+#include "mesh/boundary/ColorToBoundaryMapper.h"
+#include "mesh/vtk/VTKMeshWriter.h"
+#include "mesh/vtk/CommonDataSources.h"
+
+#include "timeloop/SweepTimeloop.h"
+
+#include "vtk/Initialization.h"
+#include "vtk/VTKOutput.h"
+
+#include "CUDA_ComplexGeometryList.h"
+
+namespace complex_geometry{
+
+    using namespace walberla;
+    using namespace cuda;
+
+
+    template< typename MeshType >
+    void vertexToFaceColor( MeshType & mesh, const typename MeshType::Color & defaultColor )
+    {
+        WALBERLA_CHECK( mesh.has_vertex_colors() );
+        mesh.request_face_colors();
+
+        for( auto faceIt = mesh.faces_begin(); faceIt != mesh.faces_end(); ++faceIt )
+        {
+            typename MeshType::Color vertexColor;
+
+            bool useVertexColor = true;
+
+            auto vertexIt = mesh.fv_iter( *faceIt );
+            WALBERLA_ASSERT( vertexIt.is_valid() );
+
+            vertexColor = mesh.color( *vertexIt );
+
+            ++vertexIt;
+            while( vertexIt.is_valid() && useVertexColor )
+            {
+                if( vertexColor != mesh.color( *vertexIt ) )
+                    useVertexColor = false;
+                ++vertexIt;
+            }
+
+            mesh.set_color( *faceIt, useVertexColor ? vertexColor : defaultColor );
+        }
+    }
+
+
+    template< typename MeshDistanceType, typename MeshType >
+    struct BoundaryLocationFunction
+    {
+        BoundaryLocationFunction( const shared_ptr< MeshDistanceType > & meshDistanceObject, const shared_ptr< mesh::BoundaryLocation< MeshType > > & boundaryLocation )
+                : meshDistanceObject_( meshDistanceObject ), boundaryLocation_( boundaryLocation ) { }
+
+        inline const mesh::BoundaryInfo & operator()( const Vector3< real_t > & p ) const
+        {
+            typename MeshType::FaceHandle fh;
+            meshDistanceObject_->sqSignedDistance( mesh::toOpenMesh( p ), fh );
+            return (*boundaryLocation_)[ fh ];
+        }
+
+        shared_ptr< MeshDistanceType > meshDistanceObject_;
+        shared_ptr< mesh::BoundaryLocation< MeshType > > boundaryLocation_;
+    };
+
+    template< typename MeshDistanceType, typename MeshType >
+    inline BoundaryLocationFunction< MeshDistanceType, MeshType > makeBoundaryLocationFunction( const shared_ptr< MeshDistanceType > & meshDistanceObject, const shared_ptr< mesh::BoundaryLocation< MeshType > > & boundaryLocation )
+    {
+        return BoundaryLocationFunction< MeshDistanceType, MeshType >( meshDistanceObject, boundaryLocation );
+    }
+
+    template< typename LBMList >
+    class MyLBMListVTKOutput {
+    public:
+
+        MyLBMListVTKOutput( const ConstBlockDataID & pdfList ) : pdfList_( pdfList ) {}
+
+        void operator()( std::vector< shared_ptr<vtk::BlockCellDataWriterInterface> > & writers,
+                         std::map< std::string, vtk::VTKOutput::CellFilter > &          filters,
+                         std::map< std::string, vtk::VTKOutput::BeforeFunction > &      /*beforeFunctions*/ )
+        {
+            writers.push_back( make_shared< lbm::ListVelocityVTKWriter< LBMList, float > >( pdfList_, "VelocityFromPDF" ) );
+            writers.push_back( make_shared< lbm::ListDensityVTKWriter < LBMList, float > >( pdfList_, "DensityFromPDF"  ) );
+            writers.push_back( make_shared< lbm::ListPDFVTKWriter < LBMList, float > >    ( pdfList_, "PDFs"            ) );
+            filters["FluidFilter"] = lbm::ListFluidFilter<LBMList>( pdfList_ );
+        }
+
+    private:
+        const ConstBlockDataID pdfList_;
+
+    }; // class MyLBMListVTKOutput
+
+    template< typename MeshDistanceType >
+    struct MeshDistanceFunction
+    {
+        MeshDistanceFunction( const shared_ptr< MeshDistanceType > & meshDistanceObject ) : meshDistanceObject_( meshDistanceObject ) { }
+
+        inline real_t operator()( const Vector3< real_t > & p ) const { return real_c( meshDistanceObject_->sqSignedDistance( mesh::toOpenMesh( p ) ) ); }
+
+        shared_ptr< MeshDistanceType > meshDistanceObject_;
+    };
+
+    template< typename MeshDistanceType >
+    inline MeshDistanceFunction< MeshDistanceType > makeMeshDistanceFunction( const shared_ptr< MeshDistanceType > & meshDistanceObject )
+    {
+        return MeshDistanceFunction< MeshDistanceType >( meshDistanceObject );
+    }
+
+    int main( int argc, char **argv )
+    {
+        Environment env( argc, argv );
+        mpi::MPIManager::instance()->useWorldComm();
+
+        WALBERLA_CHECK_NOT_NULLPTR( env.config(), "You have to specify a config file!" );
+        Config::BlockHandle configBlock = env.config()->getBlock( "ComplexGeometry" );
+        if( !configBlock )
+        WALBERLA_ABORT( "You have to specify a \"ComplexGeometry\" block in the configuration file!" );
+
+        const real_t omega = configBlock.getParameter< real_t >( "omega", real_t(1.4) );
+        const real_t dx = configBlock.getParameter< real_t >( "dx" );
+        const Vector3<uint_t> blockSize = configBlock.getParameter< Vector3<uint_t> >( "blockSize" );
+        const uint_t timeSteps = configBlock.getParameter< uint_t >( "timeSteps" );
+        const std::string meshFile = configBlock.getParameter< std::string >( "meshFile" );
+        const real_t deltaPressure = configBlock.getParameter< real_t >( "deltaPressure" );
+        const uint_t perfLoggerInterval = configBlock.getParameter< uint_t >( "perfLoggerInterval", uint_t( 100 ) );
+
+        // Setup LatticeModel
+
+        typedef lbm::D3Q19< lbm::collision_model::TRT, false > MyLatticeModel;
+        MyLatticeModel latticeModel( lbm::collision_model::TRT::constructWithMagicNumber( omega ) );
+
+        // Load mesh and build DistanceOctree
+
+        auto mesh = make_shared< mesh::TriangleMesh >();
+        mesh->request_vertex_colors();
+        WALBERLA_LOG_DEVEL_ON_ROOT( "Loading mesh" );
+        mesh::readAndBroadcast( meshFile, *mesh);
+        vertexToFaceColor( *mesh, mesh::TriangleMesh::Color(255,255,255) );
+        WALBERLA_LOG_DEVEL_ON_ROOT( "Adding distance info to mesh" );
+        auto triDist = make_shared< mesh::TriangleDistance<mesh::TriangleMesh> >( mesh );
+        WALBERLA_LOG_DEVEL_ON_ROOT( "Building distance octree" );
+        auto distanceOctree = make_shared< mesh::DistanceOctree<mesh::TriangleMesh> >( triDist );
+        WALBERLA_LOG_DEVEL_ON_ROOT( "done. Octree has height " << distanceOctree->height() );
+
+        // Setup Blockforest
+
+        mesh::ComplexGeometryStructuredBlockforestCreator bfc( computeAABB( *mesh ), Vector3<real_t>( dx ), mesh::makeExcludeMeshInterior( distanceOctree, dx ) );
+        auto meshWorkloadMemory = mesh::makeMeshWorkloadMemory( distanceOctree, dx );
+        meshWorkloadMemory.setInsideCellWorkload(1);
+        meshWorkloadMemory.setOutsideCellWorkload(0);
+        bfc.setWorkloadMemorySUIDAssignmentFunction( meshWorkloadMemory );
+
+        auto blocks = bfc.createStructuredBlockForest( blockSize );
+
+        // Setup block data
+        typedef lbm::List< MyLatticeModel, lbm::LayoutSoA< MyLatticeModel::Stencil > > MyList;
+
+        BlockDataID pdfListId = lbm::addListToStorage< MyList >( blocks, "LBM list (FIdx)", latticeModel );
+        BlockDataID inflowPressureBoundaryHandling  = lbm::addListPressureBoundaryToStorage< MyList >( pdfListId, blocks, "inflowBoundaryHandling" );
+        BlockDataID outflowPressureBoundaryHandling = lbm::addListPressureBoundaryToStorage< MyList >( pdfListId, blocks, "outflowBoundaryHandling" );
+
+        // CUDA
+
+        BlockDataID gpu_PdfListSrcID = addGPUListToStorage< MyList, ListOnGpu <uint32_t> >( blocks, pdfListId, "GPU Field Src" );
+        copyToGpu<MyList, ListOnGpu <uint32_t> >(*blocks, pdfListId, gpu_PdfListSrcID);
+
+
+        // Initialize block data
+
+        mesh::BoundarySetup bs( blocks, makeMeshDistanceFunction( distanceOctree ), uint_t(1) );
+
+        BoundaryUID noslipUID("noslip");
+        BoundaryUID inflowUID("inflowBoundaryHandling");
+        BoundaryUID outflowUID("outflowBoundaryHandling");
+
+        // attach boundary infos to mesh
+
+        mesh::ColorToBoundaryMapper<mesh::TriangleMesh> colorToBoundryMapper(( mesh::BoundaryInfo( noslipUID ) ));
+        colorToBoundryMapper.set( mesh::TriangleMesh::Color(255,0,0), mesh::BoundaryInfo( inflowUID ) );
+        colorToBoundryMapper.set( mesh::TriangleMesh::Color(0,0,255), mesh::BoundaryInfo( outflowUID ) );
+        colorToBoundryMapper.set( mesh::TriangleMesh::Color(255,255,255), mesh::BoundaryInfo( noslipUID ) );
+
+        auto boundaryLocations = colorToBoundryMapper.addBoundaryInfoToMesh( *mesh );
+
+        for( auto & block : *blocks )
+        {
+            MyList * lbmList = block.getData< MyList >( pdfListId );
+            lbm::ListPressureBoundary< MyList > * inflowPressureBH = block.getData< lbm::ListPressureBoundary< MyList > >( inflowPressureBoundaryHandling  );
+            lbm::ListPressureBoundary< MyList > * outflowPressureBH = block.getData< lbm::ListPressureBoundary< MyList > >( outflowPressureBoundaryHandling );
+
+            WALBERLA_CHECK_NOT_NULLPTR( lbmList );
+            WALBERLA_CHECK_NOT_NULLPTR( inflowPressureBH );
+            WALBERLA_CHECK_NOT_NULLPTR( outflowPressureBH );
+
+            std::vector<Cell> fluidCells = bs.getDomainCells( block, mesh::BoundarySetup::INSIDE );
+
+            std::map< boundary::BoundaryUID, std::vector<Cell> > boundaryCells = bs.getBoundaryCells( block, mesh::BoundarySetup::OUTSIDE, makeBoundaryLocationFunction( distanceOctree, boundaryLocations ) );
+
+            lbmList->init( fluidCells );
+            inflowPressureBH->init( lbmList, boundaryCells[ inflowUID ], real_t( 1 ) + deltaPressure / real_t( 2 ) );
+            outflowPressureBH->init( lbmList,  boundaryCells[ outflowUID ], real_t( 1 ) - deltaPressure / real_t( 2 ) );
+        }
+
+        // Blockforest output
+
+        lbm::BlockForestEvaluationBase< lbm::ListCellCounter, lbm::ListFluidCellCounter< MyList > > blockForestEval( blocks, lbm::ListCellCounter( blocks ),
+                                                                                                                     lbm::ListFluidCellCounter< MyList >(blocks, pdfListId ) );
+        blockForestEval.logResultOnRoot();
+
+        // Setup Timeloop
+
+        SweepTimeloop timeloop( blocks->getBlockStorage(), timeSteps );
+
+        // Communication & Boundary Handling
+
+        blockforest::communication::UniformBufferedScheme< typename MyLatticeModel::Stencil > listScheme( blocks );
+        listScheme.addPackInfo( make_shared< lbm::ListPackInfo< MyList > >( pdfListId, blocks ) );
+
+        timeloop.add() << BeforeFunction( listScheme.getStartCommunicateFunctor(), "list communication start" )
+                       << Sweep( lbm::ListPressureBoundaryHandling< MyList >( inflowPressureBoundaryHandling ), "PressureBoundaryInflow" );
+
+        timeloop.add() << Sweep( lbm::ListPressureBoundaryHandling< MyList >( outflowPressureBoundaryHandling ), "PressureBoundaryOutflow" )
+                       << AfterFunction( listScheme.getWaitFunctor(), "list communication wait" );
+
+        // LBM Sweep
+
+        timeloop.add() << Sweep( lbm::ListDefaultTRTSweep< MyList >( pdfListId ), "ListSIMD2SplitTRTSweep" );
+        //timeloop.add() << Sweep( lbm::ListSIMD2SplitTRTSweep< MyList, 128 >( pdfListId ), "ListSIMD2SplitTRTSweep" );
+
+        // VTK Output
+
+        MyLBMListVTKOutput< MyList > myVTKOutput( pdfListId );
+
+        std::map< std::string, vtk::SelectableOutputFunction > vtkOutputFunctions;
+        vtk::initializeVTKOutput( vtkOutputFunctions, myVTKOutput, blocks, env.config() );
+
+        for( auto output = vtkOutputFunctions.begin(); output != vtkOutputFunctions.end(); ++output )
+            timeloop.addFuncBeforeTimeStep( output->second.outputFunction, std::string( "VTK: " ) + output->first,
+                                            output->second.requiredGlobalStates, output->second.incompatibleGlobalStates );
+
+        // Utilities
+
+        lbm::PerformanceEvaluationBase< lbm::ListCellCounter, lbm::ListFluidCellCounter< MyList > > performanceEval( blocks, lbm::ListCellCounter( blocks ),
+                                                                                                                     lbm::ListFluidCellCounter< MyList >(blocks, pdfListId ) );
+        WcTimer performanceTimer;
+
+        timeloop.addFuncAfterTimeStep( [&]() {
+            if( timeloop.getCurrentTimeStep() == 0 )
+            {
+                performanceTimer.start();
+            }
+            else if( timeloop.getCurrentTimeStep() % perfLoggerInterval == 0 )
+            {
+                performanceTimer.end();
+                performanceEval.logResultOnRoot( perfLoggerInterval, performanceTimer.last() );
+                performanceTimer.start();
+            }
+        }, "PerformanceEvaluation");
+
+        timeloop.addFuncAfterTimeStep( timing::RemainingTimeLogger( timeloop.getNrOfTimeSteps() ) );
+
+        // Run timeloop
+
+        WcTimingPool timingPool;
+
+        timeloop.run( timingPool );
+
+        timingPool.logResultOnRoot( walberla::WcTimingPool::REDUCE_TOTAL, true );
+
+        return EXIT_SUCCESS;
+    }
+
+} // namespace complex_geometry
+
+
+int main( int argc, char ** argv )
+{
+    return complex_geometry::main( argc, argv );
+}

apps/benchmarks/CUDA_ComplexGeometryList/CUDA_ComplexGeometryList.cu

+//======================================================================================================================
+//
+//  This file is part of waLBerla. waLBerla is free software: you can
+//  redistribute it and/or modify it under the terms of the GNU General Public
+//  License as published by the Free Software Foundation, either version 3 of
+//  the License, or (at your option) any later version.
+//
+//  waLBerla is distributed in the hope that it will be useful, but WITHOUT
+//  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+//  for more details.
+//
+//  You should have received a copy of the GNU General Public License along
+//  with waLBerla (see COPYING.txt). If not, see <http://www.gnu.org/licenses/>.
+//
+//! \file AddGPUListToStorage.h
+//! \ingroup cuda
+//! \author Houman Mirzaalian D. <houman.mirzaalian@fau.de>
+//
+//======================================================================================================================
+
+#include "CUDA_ComplexGeometryList.h"
+
+
+
+
+

apps/benchmarks/CUDA_ComplexGeometryList/CUDA_ComplexGeometryList.h

+//======================================================================================================================
+//
+//  This file is part of waLBerla. waLBerla is free software: you can
+//  redistribute it and/or modify it under the terms of the GNU General Public
+//  License as published by the Free Software Foundation, either version 3 of
+//  the License, or (at your option) any later version.
+//
+//  waLBerla is distributed in the hope that it will be useful, but WITHOUT
+//  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+//  for more details.
+//
+//  You should have received a copy of the GNU General Public License along
+//  with waLBerla (see COPYING.txt). If not, see <http://www.gnu.org/licenses/>.
+//
+//! \file AddGPUListToStorage.h
+//! \ingroup cuda
+//! \author Houman Mirzaalian D. <houman.mirzaalian@fau.de>
+//
+//======================================================================================================================
+
+#pragma once
+
+#include "lbm/list/List.h"
+#include "lbm/all.h"
+#include <lbm/lattice_model/LatticeModelBase.h>
+#include "lbm/list/List.h"
+#include "lbm/lattice_model/D3Q19.h"
+#include "domain_decomposition/BlockDataID.h"
+
+#include "cuda/HostFieldAllocator.h"
+#include "cuda/HostFieldAllocator.h"
+#include "cuda/FieldCopy.h"
+#include "cuda/GPUField.h"
+#include "cuda/Kernel.h"
+#include "cuda/AddGPUFieldToStorage.h"
+#include "cuda/communication/GPUPackInfo.h"
+#include "cuda/FieldIndexing.h"
+#include "CUDA_ComplexGeometryList.h"
+
+#include <type_traits>
+
+
+namespace walberla {
+    namespace cuda {
+
+
+        using lbm::List;
+        using lbm::LayoutSoA;
+        typedef lbm::D3Q19<lbm::collision_model::TRT, false> LatticeModel_T;
+
+        template<typename Index_T = walberla::uint32_t>
+        class ListOnGpu {
+        public:
+            typedef Index_T index_t;
+            ListOnGpu() : pdfs_(nullptr), pullIdxs_(nullptr), size_(0) {}
+
+            ~ListOnGpu() {};
+
+            void resize(const size_t newSize) {
+
+                cudaFree(pdfs_);
+                cudaFree(pullIdxs_);
+                cudaMalloc(&pdfs_, sizeof(real_t) * newSize);
+                cudaMalloc(&pullIdxs_, sizeof(Index_T) * newSize);
+
+
+                //free old ptr and reallocate
+            }
+
+            real_t *getPdfData() { return pdfs_; }
+
+            const real_t *getPdfData() const { return pdfs_; }
+
+            Index_T *getPullIndicesData() { return pullIdxs_; }
+
+            const Index_T *getPullIndicesData() const { return pullIdxs_; }
+
+            size_t getSize() const { return size_; }
+
+
+        private:
+            real_t *pdfs_;
+            Index_T *pullIdxs_;
+            size_t size_;
+        };
+
+    template< typename Index_T >
+    bool operator==( const ListOnGpu<Index_T> & lhs, const ListOnGpu<Index_T> & rhs )
+    {
+        return false;
+    }
+
+        template< typename ListOnCPU, typename ListOnGPU >
+        void copyToGpu( const ListOnCPU & src, ListOnGPU & dst )
+        {
+            static_assert( std::is_same< typename ListOnCPU::index_t, typename ListOnGPU::index_t >::value, "" );
+
+            typedef typename ListOnCPU::index_t index_t;
+
+            auto pdfs_cpu = src.getPdfData();
+            auto pullIdxs_cpu = src.getPullIndicesData();
+            auto size_cpu = src.getSize();
+
+
+            auto pdfs_gpu = dst.getPdfData();
+            auto pullIdxs_gpu = dst.getPullIndicesData();
+            auto size_gpu = dst.getSize();
+
+
+            if (size_cpu != size_gpu ){
+
+                dst.resize(size_cpu);
+
+            }    // check if size matches, if not reallocate
+
+
+            cudaMemcpy(pdfs_gpu, pdfs_cpu, sizeof(real_t) * size_cpu, cudaMemcpyHostToDevice);
+            cudaMemcpy(pullIdxs_gpu, pullIdxs_cpu, sizeof(index_t) * size_cpu, cudaMemcpyHostToDevice);
+
+            // memcopy
+        }
+
+
+
+        template< typename ListOnGPU, typename ListOnCPU>
+        void copyToCpu( const ListOnGPU & src, ListOnCPU & dst )
+        {
+            static_assert( std::is_same< typename ListOnCPU::index_t, typename ListOnGPU::index_t >::value, "" );
+
+            typedef typename ListOnCPU::index_t index_t;
+
+            auto pdfs_cpu = dst.getPdfData();
+            auto pullIdxs_cpu = dst.getPullIndicesData();
+            auto size_cpu = dst.getSize();
+
+
+            auto pdfs_gpu = src.getPdfData();
+            auto pullIdxs_gpu = src.getPullIndicesData();
+            auto size_gpu = src.getSize();
+
+
+            WALBERLA_CHECK_EQUAL( size_cpu, size_gpu,  "size of cpu array is not equal to size of gpu array" );
+
+            cudaMemcpy(pdfs_cpu, pdfs_gpu, sizeof(real_t) * size_cpu, cudaMemcpyDeviceToHost);
+            cudaMemcpy(pullIdxs_cpu, pullIdxs_gpu, sizeof(index_t) * size_cpu, cudaMemcpyDeviceToHost);
+        }
+
+
+        template<typename ListOnCPU, typename ListOnGPU >
+        void copyToGpu( StructuredBlockStorage &blocks, const BlockDataID cpuListId, const BlockDataID gpuListId) {
+            for (auto &block : blocks) {
+                ListOnCPU *lbmList = block.getData<ListOnCPU>(cpuListId);
+                ListOnGPU *gpuList = block.getData<ListOnGPU>(gpuListId);
+                copyToGpu(*lbmList, *gpuList);
+            }
+        }
+
+
+
+
+        namespace internal {
+
+            template<typename CpuList_T, typename GpuList_T>
+            GpuList_T *createGPUListFromCPUList(const IBlock *const block,
+                                                const StructuredBlockStorage *const,
+                                                ConstBlockDataID cpu_pdfListId) {
+//                static_assert(std::is_same<CpuList_T, GpuList_T>::value, "type error!!");//check that types are compatible
+                const CpuList_T *list_CPU = block->getData<CpuList_T>(cpu_pdfListId);
+                GpuList_T *list_GPU = new GpuList_T();
+                copyToGpu(*list_CPU, *list_GPU);
+                return list_GPU;
+            }
+
+        }
+
+        template<typename List_T, typename GpuList_T>
+        BlockDataID addGPUListToStorage(const shared_ptr<StructuredBlockStorage> &bs,
+                                        ConstBlockDataID cpu_pdfListId,
+                                        const std::string &identifier) {
+            auto func = boost::bind(internal::createGPUListFromCPUList<List_T, GpuList_T>, _1, _2, cpu_pdfListId);
+            return bs->addStructuredBlockData<GpuList_T>(func, identifier);
+        }
+
+
+    } // namespace cuda
+} // namespace walberla
\ No newline at end of file

apps/benchmarks/CUDA_ComplexGeometryList/input.conf

+ComplexGeometry 
+{
+   omega 1.4;
+   dx 0.3;
+   blockSize <256,256,256>;
+   timeSteps 10000;
+   meshFile coronary_colored_medium.obj;
+   deltaPressure 0.0001;
+}
+