Kokkos Core Kernels Package  Version of the Day
Kokkos_AcquireUniqueTokenImpl.hpp
1 /*
2 //@HEADER
3 // ************************************************************************
4 //
5 // Kokkos v. 3.0
6 // Copyright (2020) National Technology & Engineering
7 // Solutions of Sandia, LLC (NTESS).
8 //
9 // Under the terms of Contract DE-NA0003525 with NTESS,
10 // the U.S. Government retains certain rights in this software.
11 //
12 // Redistribution and use in source and binary forms, with or without
13 // modification, are permitted provided that the following conditions are
14 // met:
15 //
16 // 1. Redistributions of source code must retain the above copyright
17 // notice, this list of conditions and the following disclaimer.
18 //
19 // 2. Redistributions in binary form must reproduce the above copyright
20 // notice, this list of conditions and the following disclaimer in the
21 // documentation and/or other materials provided with the distribution.
22 //
23 // 3. Neither the name of the Corporation nor the names of the
24 // contributors may be used to endorse or promote products derived from
25 // this software without specific prior written permission.
26 //
27 // THIS SOFTWARE IS PROVIDED BY NTESS "AS IS" AND ANY
28 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NTESS OR THE
31 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
32 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
33 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
34 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
35 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
36 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
37 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 //
39 // Questions? Contact Christian R. Trott (crtrott@sandia.gov)
40 //
41 // ************************************************************************
42 //@HEADER
43 */
44 
45 #ifndef KOKKOS_ACQUIRE_UNIQUE_TOKEN_IMPL_HPP
46 #define KOKKOS_ACQUIRE_UNIQUE_TOKEN_IMPL_HPP
47 
48 #include <Kokkos_Core.hpp>
49 #include <Kokkos_UniqueToken.hpp>
50 namespace Kokkos {
51 namespace Experimental {
52 
53 template <typename TeamPolicy>
54 KOKKOS_FUNCTION AcquireTeamUniqueToken<TeamPolicy>::AcquireTeamUniqueToken(
55  AcquireTeamUniqueToken<TeamPolicy>::token_type t, team_member_type team)
56  : my_token(t), my_team_acquired_val(team.team_scratch(0)), my_team(team) {
57  Kokkos::single(Kokkos::PerTeam(my_team),
58  [&]() { my_team_acquired_val() = my_token.acquire(); });
59  my_team.team_barrier();
60 
61  my_acquired_val = my_team_acquired_val();
62 }
63 
64 template <typename TeamPolicy>
65 KOKKOS_FUNCTION AcquireTeamUniqueToken<TeamPolicy>::~AcquireTeamUniqueToken() {
66  my_team.team_barrier();
67  Kokkos::single(Kokkos::PerTeam(my_team),
68  [&]() { my_token.release(my_acquired_val); });
69  my_team.team_barrier();
70 }
71 
72 } // namespace Experimental
73 } // namespace Kokkos
74 
75 #endif // KOKKOS_UNIQUE_TOKEN_HPP
Definition: dummy.cpp:3