diff --git a/src/Benchmarks/BLAS/vector-operations.h b/src/Benchmarks/BLAS/vector-operations.h
index b9a68d618b1c7caf5eb47a21e630143927367e54..8dd63de85b985f72a9a1dc3888f2e587234340be 100644
--- a/src/Benchmarks/BLAS/vector-operations.h
+++ b/src/Benchmarks/BLAS/vector-operations.h
@@ -64,7 +64,7 @@ benchmarkVectorOperations( Benchmark & benchmark,
       deviceVector.setValue( 1.0 );
 #endif
       // A relatively harmless call to keep the compiler from realizing we
-      // don't actually do any useful work with the result of the reduciton.
+      // don't actually do any useful work with the result of the reduction.
       srand48(resultHost);
       resultHost = resultDevice = 0.0;
    };
diff --git a/src/Benchmarks/Traversers/WriteOne.h b/src/Benchmarks/Traversers/WriteOne.h
new file mode 100644
index 0000000000000000000000000000000000000000..73bf0bfecfb3f111f0feac0e6091aa9549430673
--- /dev/null
+++ b/src/Benchmarks/Traversers/WriteOne.h
@@ -0,0 +1,88 @@
+/***************************************************************************
+                          WriteOne.h  -  description
+                             -------------------
+    begin                : Dec 19, 2018
+    copyright            : (C) 2018 by oberhuber
+    email                : tomas.oberhuber@fjfi.cvut.cz
+ ***************************************************************************/
+
+/* See Copyright Notice in tnl/Copyright */
+
+// Implemented by: Tomas Oberhuber
+
+#pragma once
+
+#include <TNL/ParallelFor.h>
+#include <TNL/Devices/Host.h>
+#include <TNL/Devices/Cuda.h>
+#include <TNL/Containers/Vector.h>
+
+namespace TNL {
+   namespace Benchmarks {
+      
+
+template< int Dimenions,
+          typename Device,
+          typename Real,
+          typename Index >
+class WriteOne{};
+
+template< typename Device,
+          typename Real,
+          typename Index >
+class WriteOne< 1, Device, Real, Index >
+{
+   public:
+      
+      using Vector = Containers::Vector< Real, Device, Index >;
+      
+      static void run( std::size_t size )
+      {
+         Vector v( size );
+         auto writeOne = []( Index i, Real* data )
+         {
+            data[ i ] = 1.0;
+         };
+         
+         
+         ParallelFor< Devices::Host >::exec( ( std::size_t ) 0, size, writeOne, v.getData() );
+      }
+};
+
+
+template< typename Device,
+          typename Real,
+          typename Index >
+class WriteOne< 2, Device, Real, Index >
+{
+   public:
+      
+      using Vector = Containers::Vector< Real, Device, Index >;
+      
+      static void run( std::size_t size )
+      {
+         
+      }
+};
+
+template< typename Device,
+          typename Real,
+          typename Index >
+class WriteOne< 3, Device, Real, Index >
+{
+   public:
+      
+      using Vector = Containers::Vector< Real, Device, Index >;
+      
+      static void run( std::size_t size )
+      {
+         
+      }
+};
+
+
+   } // namespace Benchmarks
+} // namespace TNL
+
+
+
diff --git a/src/Benchmarks/Traversers/grid-traversing.h b/src/Benchmarks/Traversers/grid-traversing.h
new file mode 100644
index 0000000000000000000000000000000000000000..df45b1d7fe62be4eb6bfae1d6e85d387ef73f6c3
--- /dev/null
+++ b/src/Benchmarks/Traversers/grid-traversing.h
@@ -0,0 +1,54 @@
+/***************************************************************************
+                          grid-traversing.h  -  description
+                             -------------------
+    begin                : Dec 19, 2018
+    copyright            : (C) 2018 by oberhuber
+    email                : tomas.oberhuber@fjfi.cvut.cz
+ ***************************************************************************/
+
+/* See Copyright Notice in tnl/Copyright */
+
+// Implemented by: Tomas Oberhuber
+
+#pragma once
+
+#include "../Benchmarks.h"
+#include "WriteOne.h"
+
+#include <TNL/Containers/Vector.h>
+
+namespace TNL {
+   namespace Benchmarks {
+   
+template< int Dimension,
+          typename Real = double,
+          typename Index = int >
+class benchmarkTraversingFullGrid
+{
+   public:
+
+      static void run ( Benchmark& benchmark, std::size_t size )
+      {
+         auto reset = [&]()
+         {};
+         
+         auto testHost = [&] ()
+         {
+            WriteOne< Dimension, Devices::Host, Real, Index >::run( size );
+         }; 
+         
+         auto testCuda = [&] ()
+         {
+            WriteOne< Dimension, Devices::Cuda, Real, Index >::run( size );
+         }; 
+         
+         benchmark.setOperation( "writeOne", size * sizeof( Real ) );
+         benchmark.time( reset, "CPU", testHost );
+#ifdef HAVE_CUDA
+         benchmark.time( reset, "GPU", testCuda );
+#endif
+
+      }
+};
+   } // namespace Benchmarks
+} // namespace TNL
\ No newline at end of file