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,
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40 //
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42 //@HEADER
43 */
44
45 /// @Kokkos_Feature_Level_Required:2
46 // Unit test for atomic exchange, atomic add and atomic sub.
47 // Atomic exchange test : we interchange value1 with value2 and check for
48 // correctness. Atomic add test : we add value2 to value1 and check for
49 // correctness. Atomic sub test : we subtract value2 from value1 and check for
50 // correctmess.
51
52 #include <Kokkos_Core.hpp>
53 #include <gtest/gtest.h>
54
55 namespace Test {
56
57 struct TestIncrAtomic {
58 using value_type = double;
59 value_type value1 = 1.5, value2 = 0.5;
60
testExchangeTest::TestIncrAtomic61 void testExchange() {
62 value_type ret_value = Kokkos::atomic_exchange(&value1, value2);
63
64 ASSERT_EQ(value1, 0.5);
65 ASSERT_EQ(ret_value, 1.5);
66 }
67
testAddTest::TestIncrAtomic68 void testAdd() {
69 Kokkos::atomic_add(&value1, value2);
70
71 ASSERT_EQ(value1, 2.0);
72 }
73
testSubTest::TestIncrAtomic74 void testSub() {
75 Kokkos::atomic_sub(&value1, value2);
76
77 ASSERT_EQ(value1, 1.0);
78 }
79 };
80
TEST(TEST_CATEGORY,IncrTest_01_AtomicExchange)81 TEST(TEST_CATEGORY, IncrTest_01_AtomicExchange) {
82 TestIncrAtomic test;
83 test.testExchange();
84 }
85
TEST(TEST_CATEGORY,IncrTest_02_AtomicAdd)86 TEST(TEST_CATEGORY, IncrTest_02_AtomicAdd) {
87 TestIncrAtomic test;
88 test.testAdd();
89 }
90
TEST(TEST_CATEGORY,IncrTest_02_AtomicSub)91 TEST(TEST_CATEGORY, IncrTest_02_AtomicSub) {
92 TestIncrAtomic test;
93 test.testSub();
94 }
95
96 } // namespace Test
97