Kokkos Core Kernels Package Version of the Day
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Kokkos_AcquireUniqueTokenImpl.hpp
1//@HEADER
2// ************************************************************************
3//
4// Kokkos v. 4.0
5// Copyright (2022) National Technology & Engineering
6// Solutions of Sandia, LLC (NTESS).
7//
8// Under the terms of Contract DE-NA0003525 with NTESS,
9// the U.S. Government retains certain rights in this software.
10//
11// Part of Kokkos, under the Apache License v2.0 with LLVM Exceptions.
12// See https://kokkos.org/LICENSE for license information.
13// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
14//
15//@HEADER
16
17#ifndef KOKKOS_IMPL_PUBLIC_INCLUDE
18#include <Kokkos_Macros.hpp>
19static_assert(false,
20 "Including non-public Kokkos header files is not allowed.");
21#endif
22#ifndef KOKKOS_ACQUIRE_UNIQUE_TOKEN_IMPL_HPP
23#define KOKKOS_ACQUIRE_UNIQUE_TOKEN_IMPL_HPP
24
25#include <Kokkos_Core.hpp>
26#include <Kokkos_UniqueToken.hpp>
27namespace Kokkos {
28namespace Experimental {
29
30template <typename TeamPolicy>
31KOKKOS_FUNCTION AcquireTeamUniqueToken<TeamPolicy>::AcquireTeamUniqueToken(
32 AcquireTeamUniqueToken<TeamPolicy>::token_type t, team_member_type team)
33 : my_token(t), my_team_acquired_val(team.team_scratch(0)), my_team(team) {
34 Kokkos::single(Kokkos::PerTeam(my_team),
35 [&]() { my_team_acquired_val() = my_token.acquire(); });
36 my_team.team_barrier();
37
38 my_acquired_val = my_team_acquired_val();
39}
40
41template <typename TeamPolicy>
42KOKKOS_FUNCTION AcquireTeamUniqueToken<TeamPolicy>::~AcquireTeamUniqueToken() {
43 my_team.team_barrier();
44 Kokkos::single(Kokkos::PerTeam(my_team),
45 [&]() { my_token.release(my_acquired_val); });
46 my_team.team_barrier();
47}
48
49} // namespace Experimental
50} // namespace Kokkos
51
52#endif // KOKKOS_UNIQUE_TOKEN_HPP