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 // @Kokkos_Feature_Level_Required:11
46 // Unit test for hierarchical parallelism
47 // Create concurrent work hierarchically and verify if
48 // contributions of paticipating processing units corresponds to expected value
49
50 #include <gtest/gtest.h>
51 #include <Kokkos_Core.hpp>
52
53 namespace Test {
54
55 template <class ExecSpace>
56 struct Hierarchical_ForLoop_C {
runTest::Hierarchical_ForLoop_C57 void run(const int pN, const int sX, const int sY, const int sZ) {
58 using team_policy = Kokkos::TeamPolicy<ExecSpace>;
59 using member_type = typename Kokkos::TeamPolicy<ExecSpace>::member_type;
60
61 using viewDataType = Kokkos::View<size_t ***, ExecSpace>;
62 viewDataType v("Matrix", sX, sY, sZ);
63
64 Kokkos::parallel_for(
65 "Team", team_policy(pN, Kokkos::AUTO),
66 KOKKOS_LAMBDA(const member_type &team) {
67 int n = team.league_rank();
68 int ls = team.league_size();
69
70 int startDim1 = n * (int)(sX / ls);
71 int modDim1 = n == ls - 1 ? sX % ls : 0;
72
73 Kokkos::parallel_for(
74 Kokkos::TeamThreadRange(team, v.extent(1)), [&](const int m) {
75 Kokkos::parallel_for(
76 Kokkos::ThreadVectorRange(team, v.extent(2)),
77 [&](const int k) {
78 for (int i = startDim1;
79 i < (startDim1 + (int)(sX / ls) + modDim1); ++i)
80 v(i, m, k) =
81 i * v.extent(1) * v.extent(2) + m * v.extent(2) + k;
82 });
83 });
84 });
85
86 Kokkos::fence();
87 auto v_H = Kokkos::create_mirror_view_and_copy(Kokkos::HostSpace(), v);
88
89 size_t check = 0;
90 const size_t s = sX * sY * sZ;
91 for (int i = 0; i < sX; ++i)
92 for (int j = 0; j < sY; ++j)
93 for (int k = 0; k < sZ; ++k) check += v_H(i, j, k);
94 ASSERT_EQ(check, s * (s - 1) / 2);
95 }
96 };
97
TEST(TEST_CATEGORY,IncrTest_11c_Hierarchical_ForLoop)98 TEST(TEST_CATEGORY, IncrTest_11c_Hierarchical_ForLoop) {
99 Hierarchical_ForLoop_C<TEST_EXECSPACE> test;
100 test.run(4, 16, 16, 16);
101 test.run(8, 12, 333, 16);
102 test.run(12, 277, 321, 345);
103 }
104
105 } // namespace Test
106