Uncommented ifdef that served as a barrier for use of file functions.

src/Benchmarks/SpMV/cusparseCSRMatrix.h

+/***************************************************************************
+                          tnlCusparseCSR.h  -  description
+                             -------------------
+    begin                : Jul 3, 2014
+    copyright            : (C) 2014 by Tomas Oberhuber
+    email                : tomas.oberhuber@fjfi.cvut.cz
+ ***************************************************************************/
+
+/* See Copyright Notice in tnl/Copyright */
+
+#include <TNL/Assert.h>
+#include <TNL/Devices/Cuda.h>
+#ifdef HAVE_CUDA
+#include <cusparse.h>
+#endif
+
+namespace TNL {
+
+template< typename Real >
+class CusparseCSRBase
+{
+   public:
+      typedef Real RealType;
+      typedef Devices::Cuda DeviceType;
+      typedef Matrices::CSR< RealType, Devices::Cuda, int > MatrixType;
+
+      CusparseCSRBase()
+      : matrix( 0 )
+      {
+      };
+
+#ifdef HAVE_CUDA
+      void init( const MatrixType& matrix,
+                 cusparseHandle_t* cusparseHandle )
+      {
+         this->matrix = &matrix;
+         this->cusparseHandle = cusparseHandle;
+         cusparseCreateMatDescr( & this->matrixDescriptor );
+      };
+#endif
+
+      int getRows() const
+      {
+         return matrix->getRows();
+      }
+
+      int getColumns() const
+      {
+         return matrix->getColumns();
+      }
+
+      int getNumberOfMatrixElements() const
+      {
+         return matrix->getNumberOfMatrixElements();
+      }
+
+
+      template< typename InVector,
+                typename OutVector >
+      void vectorProduct( const InVector& inVector,
+                          OutVector& outVector ) const
+      {
+         TNL_ASSERT_TRUE( matrix, "matrix was not initialized" );
+#ifdef HAVE_CUDA
+         cusparseDcsrmv( *( this->cusparseHandle ),
+                         CUSPARSE_OPERATION_NON_TRANSPOSE,
+                         this->matrix->getRows(),
+                         this->matrix->getColumns(),
+                         this->matrix->values.getSize(),
+                         1.0,
+                         this->matrixDescriptor,
+                         this->matrix->values.getData(),
+                         this->matrix->rowPointers.getData(),
+                         this->matrix->columnIndexes.getData(),
+                         inVector.getData(),
+                         1.0,
+                         outVector.getData() );
+#endif
+      }
+
+   protected:
+
+      const MatrixType* matrix;
+#ifdef HAVE_CUDA
+      cusparseHandle_t* cusparseHandle;
+
+      cusparseMatDescr_t matrixDescriptor;
+#endif
+};
+
+
+template< typename Real >
+class CusparseCSR
+{};
+
+template<>
+class CusparseCSR< double > : public CusparseCSRBase< double >
+{
+   public:
+
+      template< typename InVector,
+                typename OutVector >
+      void vectorProduct( const InVector& inVector,
+                          OutVector& outVector ) const
+      {
+         TNL_ASSERT_TRUE( matrix, "matrix was not initialized" );
+#ifdef HAVE_CUDA  
+	 double d = 1.0;       
+         double* alpha = &d;
+         cusparseDcsrmv( *( this->cusparseHandle ),
+                         CUSPARSE_OPERATION_NON_TRANSPOSE,
+                         this->matrix->getRows(),
+                         this->matrix->getColumns(),
+                         this->matrix->getValues().getSize(),
+                         alpha,
+                         this->matrixDescriptor,
+                         this->matrix->getValues().getData(),
+                         this->matrix->getRowPointers().getData(),
+                         this->matrix->getColumnIndexes().getData(),
+                         inVector.getData(),
+                         alpha,
+                         outVector.getData() );
+#endif         
+      }
+};
+
+template<>
+class CusparseCSR< float > : public CusparseCSRBase< float >
+{
+   public:
+
+      template< typename InVector,
+                typename OutVector >
+      void vectorProduct( const InVector& inVector,
+                          OutVector& outVector ) const
+      {
+         TNL_ASSERT_TRUE( matrix, "matrix was not initialized" );
+#ifdef HAVE_CUDA         
+         float d = 1.0;       
+         float* alpha = &d;
+         cusparseScsrmv( *( this->cusparseHandle ),
+                         CUSPARSE_OPERATION_NON_TRANSPOSE,
+                         this->matrix->getRows(),
+                         this->matrix->getColumns(),
+                         this->matrix->getValues().getSize(),
+                         alpha,
+                         this->matrixDescriptor,
+                         this->matrix->getValues().getData(),
+                         this->matrix->getRowPointers().getData(),
+                         this->matrix->getColumnIndexes().getData(),
+                         inVector.getData(),
+                         alpha,
+                         outVector.getData() );
+#endif         
+      }
+};
+
+} // namespace TNL
\ No newline at end of file