Commit 1d9a7a66 authored by Tomáš Oberhuber's avatar Tomáš Oberhuber
Browse files

Finishing simple code explaining bad CUDA performance.

parent c0705f62

src/mesh/grids/tnlGrid2D.h

+4 −4
Original line number Diff line number Diff line
@@ -23,7 +23,7 @@ 
#include <mesh/grids/tnlGridEntityGetter.h>

#include <mesh/grids/tnlNeighbourGridEntityGetter.h>



#include <../tests/benchmarks/heat-equation-benchmark/TestGridEntity.h>

//#include <../tests/benchmarks/heat-equation-benchmark/TestGridEntity.h>

//#include <../tests/benchmarks/heat-equation-benchmark/TestNeighbourGridEntityGetter2D_impl.h>



template< typename Real,
@@ -53,11 +53,11 @@ class tnlGrid< 2, Real, Device, Index > : public tnlObject 
   typedef MeshEntity< 0 > Vertex;

   

   

   template< int EntityDimensions, 

   /*template< int EntityDimensions, 

             typename Config = tnlGridEntityNoStencilStorage >//CrossStencilStorage< 1 > >

   using TestMeshEntity = TestGridEntity< ThisType, EntityDimensions, Config >;

   using TestMeshEntity = TestGridEntity< ThisType, EntityDimensions >;

   typedef TestMeshEntity< meshDimensions, tnlGridEntityCrossStencilStorage< 1 > > TestCell;

    

    */

   

   static constexpr int getMeshDimensions() { return meshDimensions; };

tests/benchmarks/heat-equation-benchmark/HeatEquationBenchmarkProblem_impl.h

+1 −1
Original line number Diff line number Diff line
@@ -363,7 +363,7 @@ heatEquationTemplatedCompact( const GridType grid, 
   //GridEntity entity( grid, coordinates, entityOrientation, entityBasis );

   //printf( "size = %d ", sizeof( GridEntity ) );

   //entity.refresh();

   typename GridType::TestCell entity( grid, coordinates, entityOrientation, entityBasis );

   //typename GridType::TestCell entity( grid, coordinates, entityOrientation, entityBasis );

   

   const IndexType tidX = begin.x() + ( gridXIdx * tnlCuda::getMaxGridSize() + blockIdx.x ) * blockDim.x + threadIdx.x;

   const IndexType tidY = begin.y() + ( gridYIdx * tnlCuda::getMaxGridSize() + blockIdx.y ) * blockDim.y + threadIdx.y;

tests/benchmarks/heat-equation-benchmark/TestGridEntity.h

+7 −10
Original line number Diff line number Diff line
@@ -31,8 +31,7 @@ class TestNeighbourGridEntitiesStorage 
};



template< typename Grid,          

          int EntityDimensions,

          typename Config >

          int EntityDimensions >

class TestGridEntity

{

};
@@ -42,9 +41,8 @@ template< int Dimensions, 
          typename Real,

          typename Device,

          typename Index,          

          int EntityDimensions,

          typename Config >

class TestGridEntity< tnlGrid< Dimensions, Real, Device, Index >, EntityDimensions, Config >

          int EntityDimensions >

class TestGridEntity< tnlGrid< Dimensions, Real, Device, Index >, EntityDimensions >

{

   public:

      static const int entityDimensions = EntityDimensions;
@@ -56,9 +54,8 @@ class TestGridEntity< tnlGrid< Dimensions, Real, Device, Index >, EntityDimensio 
template< int Dimensions,

          typename Real,

          typename Device,

          typename Index,

          typename Config >

class TestGridEntity< tnlGrid< Dimensions, Real, Device, Index >, Dimensions, Config >

          typename Index >

class TestGridEntity< tnlGrid< Dimensions, Real, Device, Index >, Dimensions >

{

   public:
@@ -68,7 +65,7 @@ class TestGridEntity< tnlGrid< Dimensions, Real, Device, Index >, Dimensions, Co 
      typedef typename GridType::IndexType IndexType;

      typedef typename GridType::CoordinatesType CoordinatesType;

      typedef typename GridType::VertexType VertexType;

      typedef Config ConfigType;

      //typedef Config ConfigType;

      

      static const int meshDimensions = GridType::meshDimensions;
@@ -81,7 +78,7 @@ class TestGridEntity< tnlGrid< Dimensions, Real, Device, Index >, Dimensions, Co 
      

      typedef tnlStaticVector< meshDimensions, IndexType > EntityOrientationType;

      typedef tnlStaticVector< meshDimensions, IndexType > EntityBasisType;

      typedef TestGridEntity< GridType, entityDimensions, Config > ThisType;

      typedef TestGridEntity< GridType, entityDimensions > ThisType;

      typedef TestNeighbourGridEntitiesStorage< ThisType > NeighbourGridEntitiesStorageType;

      

      __cuda_callable__ inline

tests/benchmarks/heat-equation-benchmark/tnl-benchmark-simple-heat-equation-bug.h

+51 −586

File changed.

Preview size limit exceeded, changes collapsed.

src/mesh/grids/tnlTraverser_Grid2D_impl.h

+1 −1

File changed.

Contains only whitespace changes.