Stokhos Package Browser (Single Doxygen Collection)  Version of the Day
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
Stokhos_Cuda_StochasticProductTensor.hpp
Go to the documentation of this file.
1 // @HEADER
2 // ***********************************************************************
3 //
4 // Stokhos Package
5 // Copyright (2009) Sandia Corporation
6 //
7 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
8 // license for use of this work by or on behalf of the U.S. Government.
9 //
10 // Redistribution and use in source and binary forms, with or without
11 // modification, are permitted provided that the following conditions are
12 // met:
13 //
14 // 1. Redistributions of source code must retain the above copyright
15 // notice, this list of conditions and the following disclaimer.
16 //
17 // 2. Redistributions in binary form must reproduce the above copyright
18 // notice, this list of conditions and the following disclaimer in the
19 // documentation and/or other materials provided with the distribution.
20 //
21 // 3. Neither the name of the Corporation nor the names of the
22 // contributors may be used to endorse or promote products derived from
23 // this software without specific prior written permission.
24 //
25 // THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
26 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
29 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
30 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
31 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
32 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
33 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
34 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
35 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 //
37 // Questions? Contact Eric T. Phipps (etphipp@sandia.gov).
38 //
39 // ***********************************************************************
40 // @HEADER
41 
42 #ifndef STOKHOS_CUDA_STOCHASTICPRODUCTTENSOR_HPP
43 #define STOKHOS_CUDA_STOCHASTICPRODUCTTENSOR_HPP
44 
45 #include "Kokkos_Core.hpp"
46 
47 #include "Stokhos_Multiply.hpp"
50 
51 namespace Stokhos {
52 
53 //----------------------------------------------------------------------------
54 //----------------------------------------------------------------------------
55 
56 template< typename TensorScalar ,
57  typename MatrixScalar ,
58  typename VectorScalar ,
59  typename TensorType >
60 class Multiply<
62  StochasticProductTensor<TensorScalar, TensorType, Kokkos::Cuda>,
63  MatrixScalar, Kokkos::Cuda> ,
64  Kokkos::View<VectorScalar**, Kokkos::LayoutLeft, Kokkos::Cuda>,
65  Kokkos::View<VectorScalar**, Kokkos::LayoutLeft, Kokkos::Cuda> >
66 {
67 public:
68 
69  typedef Kokkos::Cuda execution_space ;
70  typedef execution_space::size_type size_type ;
71 
74  typedef Kokkos::View< VectorScalar** , Kokkos::LayoutLeft , Kokkos::Cuda > vector_type ;
75 
76 
77  static void apply( const matrix_type & A ,
78  const vector_type & x ,
79  const vector_type & y )
80  {
82 
84  base_multiply_type ;
85 
86  base_matrix_type base_matrix ;
87 
88  base_matrix.values = A.values ;
89  base_matrix.graph = A.graph ;
90  base_matrix.block = A.block.tensor();
91 
92  base_multiply_type::apply( base_matrix , x , y );
93  }
94 };
95 
96 //----------------------------------------------------------------------------
97 //----------------------------------------------------------------------------
98 
99 } // namespace Stokhos
100 
101 #endif /* #ifndef STOKHOS_CUDA_STOCHASTICPRODUCTTENSOR_HPP */
Bases defined by combinatorial product of polynomial bases.
CRS matrix of dense blocks.