1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
//@HEADER
// ************************************************************************
//
// Kokkos v. 4.0
// Copyright (2022) National Technology & Engineering
// Solutions of Sandia, LLC (NTESS).
//
// Under the terms of Contract DE-NA0003525 with NTESS,
// the U.S. Government retains certain rights in this software.
//
// Part of Kokkos, under the Apache License v2.0 with LLVM Exceptions.
// See https://kokkos.org/LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//@HEADER
#include <TestStdAlgorithmsCommon.hpp>
namespace Test {
namespace stdalgos {
namespace TeamCountIf {
namespace KE = Kokkos::Experimental;
template <class ValueType>
struct GreaterThanValueFunctor {
ValueType m_val;
KOKKOS_INLINE_FUNCTION
GreaterThanValueFunctor(ValueType val) : m_val(val) {}
KOKKOS_INLINE_FUNCTION
bool operator()(ValueType val) const { return (val > m_val); }
};
template <class ViewType, class CountsViewType, class IntraTeamSentinelView,
class ValueType>
struct TestFunctorA {
ViewType m_view;
CountsViewType m_countsView;
IntraTeamSentinelView m_intraTeamSentinelView;
ValueType m_threshold;
int m_apiPick;
TestFunctorA(const ViewType view, const CountsViewType countsView,
const IntraTeamSentinelView intraTeamSentinelView,
ValueType threshold, int apiPick)
: m_view(view),
m_countsView(countsView),
m_intraTeamSentinelView(intraTeamSentinelView),
m_threshold(threshold),
m_apiPick(apiPick) {}
template <class MemberType>
KOKKOS_INLINE_FUNCTION void operator()(const MemberType& member) const {
const auto myRowIndex = member.league_rank();
auto myRowView = Kokkos::subview(m_view, myRowIndex, Kokkos::ALL());
std::size_t myCount = 0;
GreaterThanValueFunctor predicate(m_threshold);
if (m_apiPick == 0) {
myCount = KE::count_if(member, KE::begin(myRowView), KE::end(myRowView),
predicate);
Kokkos::single(Kokkos::PerTeam(member),
[=, *this]() { m_countsView(myRowIndex) = myCount; });
} else if (m_apiPick == 1) {
myCount = KE::count_if(member, myRowView, predicate);
Kokkos::single(Kokkos::PerTeam(member),
[=, *this]() { m_countsView(myRowIndex) = myCount; });
}
// store result of checking if all members have their local
// values matching the one stored in m_distancesView
member.team_barrier();
const bool intraTeamCheck = team_members_have_matching_result(
member, myCount, m_countsView(myRowIndex));
Kokkos::single(Kokkos::PerTeam(member), [=, *this]() {
m_intraTeamSentinelView(myRowIndex) = intraTeamCheck;
});
}
};
template <class LayoutTag, class ValueType>
void test_A(std::size_t numTeams, std::size_t numCols, int apiId) {
/* description:
use a rank-2 view randomly filled with values,
and run a team-level count_if where only the values
strictly greater than a threshold are counted
*/
const auto threshold = static_cast<ValueType>(151);
// -----------------------------------------------
// prepare data
// -----------------------------------------------
// create a view in the memory space associated with default exespace
// with as many rows as the number of teams and fill it with random
// values from an arbitrary range.
constexpr ValueType lowerBound = 5;
constexpr ValueType upperBound = 523;
const auto bounds = make_bounds(lowerBound, upperBound);
auto [dataView, cloneOfDataViewBeforeOp_h] =
create_random_view_and_host_clone(LayoutTag{}, numTeams, numCols, bounds,
"dataView");
// -----------------------------------------------
// launch kokkos kernel
// -----------------------------------------------
using space_t = Kokkos::DefaultExecutionSpace;
Kokkos::TeamPolicy<space_t> policy(numTeams, Kokkos::AUTO());
// to verify that things work, each team stores the result
// of its count_if call, and then we check
// that these match what we expect
Kokkos::View<std::size_t*> countsView("countsView", numTeams);
// sentinel to check if all members of the team compute the same result
Kokkos::View<bool*> intraTeamSentinelView("intraTeamSameResult", numTeams);
// use CTAD for functor
TestFunctorA fnc(dataView, countsView, intraTeamSentinelView, threshold,
apiId);
Kokkos::parallel_for(policy, fnc);
// -----------------------------------------------
// check
// -----------------------------------------------
auto countsView_h = create_host_space_copy(countsView);
auto intraTeamSentinelView_h = create_host_space_copy(intraTeamSentinelView);
for (std::size_t i = 0; i < cloneOfDataViewBeforeOp_h.extent(0); ++i) {
std::size_t goldCountForRow = 0;
for (std::size_t j = 0; j < cloneOfDataViewBeforeOp_h.extent(1); ++j) {
if (cloneOfDataViewBeforeOp_h(i, j) > threshold) {
goldCountForRow++;
}
}
ASSERT_EQ(goldCountForRow, countsView_h(i));
ASSERT_TRUE(intraTeamSentinelView_h(i));
}
}
template <class LayoutTag, class ValueType>
void run_all_scenarios() {
for (int numTeams : teamSizesToTest) {
for (const auto& numCols : {0, 1, 2, 13, 101, 1444, 8153}) {
for (int apiId : {0, 1}) {
test_A<LayoutTag, ValueType>(numTeams, numCols, apiId);
}
}
}
}
TEST(std_algorithms_count_if_team_test, test) {
run_all_scenarios<DynamicTag, double>();
run_all_scenarios<StridedTwoRowsTag, int>();
run_all_scenarios<StridedThreeRowsTag, unsigned>();
}
} // namespace TeamCountIf
} // namespace stdalgos
} // namespace Test
|
