Stokhos Package Browser (Single Doxygen Collection)  Version of the Day
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
Kokkos_Atomic_MP_Vector.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 KOKKOS_ATOMIC_MP_VECTOR_HPP
43 #define KOKKOS_ATOMIC_MP_VECTOR_HPP
44 
45 #include "Sacado_MP_Vector.hpp"
46 #include "Kokkos_Core.hpp"
47 
48 //----------------------------------------------------------------------------
49 // Overloads of Kokkos atomic functions for Sacado::MP::Vector scalar type
50 //----------------------------------------------------------------------------
51 
52 namespace Kokkos {
53 
54 template <typename Storage>
55 KOKKOS_INLINE_FUNCTION
56 void
58  const Sacado::MP::Vector<Storage>& src )
59 {
60  typedef typename Storage::ordinal_type ordinal_type;
61  typedef typename Storage::volatile_pointer pointer;
62  pointer dest_c = dest->coeff();
63  const ordinal_type sz = dest->size();
64  if (src.hasFastAccess(sz))
65  for (ordinal_type i=0; i<sz; ++i)
66  atomic_exchange(dest_c+i, src.fastAccessCoeff(i));
67  else
68  for (ordinal_type i=0; i<sz; ++i)
69  atomic_exchange(dest_c+i, src.coeff(i));
70 }
71 
72 template <typename Storage>
73 KOKKOS_INLINE_FUNCTION
74 void
76  const Sacado::MP::Vector<Storage>& src)
77 {
78  typedef typename Storage::ordinal_type ordinal_type;
79  typedef typename Storage::volatile_pointer pointer;
80  pointer dest_c = dest->coeff();
81  const ordinal_type sz = dest->size();
82  if (src.hasFastAccess(sz))
83  for (ordinal_type i=0; i<sz; ++i)
84  atomic_add(dest_c+i, src.fastAccessCoeff(i));
85  else
86  for (ordinal_type i=0; i<sz; ++i)
87  atomic_add(dest_c+i, src.coeff(i));
88 }
89 
90 } // namespace Kokkos
91 
92 //----------------------------------------------------------------------------
93 //----------------------------------------------------------------------------
94 
95 #endif /* #ifndef KOKKOS_ATOMIC_MP_VECTOR_HPP */
KOKKOS_INLINE_FUNCTION void atomic_add(volatile Sacado::UQ::PCE< Storage > *const dest, const Sacado::UQ::PCE< Storage > &src)
KOKKOS_INLINE_FUNCTION void atomic_assign(volatile Sacado::UQ::PCE< Storage > *const dest, const Sacado::UQ::PCE< Storage > &src)