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
|
#include <thrust/execution_policy.h>
#include <thrust/functional.h>
#include <thrust/tabulate.h>
#include <unittest/unittest.h>
#ifdef THRUST_TEST_DEVICE_SIDE
template <typename ExecutionPolicy, typename Iterator, typename Function>
__global__ void tabulate_kernel(ExecutionPolicy exec, Iterator first, Iterator last, Function f)
{
thrust::tabulate(exec, first, last, f);
}
template <typename ExecutionPolicy>
void TestTabulateDevice(ExecutionPolicy exec)
{
typedef thrust::device_vector<int> Vector;
using namespace thrust::placeholders;
typedef typename Vector::value_type T;
Vector v(5);
tabulate_kernel<<<1, 1>>>(exec, v.begin(), v.end(), thrust::identity<T>());
{
cudaError_t const err = cudaDeviceSynchronize();
ASSERT_EQUAL(cudaSuccess, err);
}
ASSERT_EQUAL(v[0], 0);
ASSERT_EQUAL(v[1], 1);
ASSERT_EQUAL(v[2], 2);
ASSERT_EQUAL(v[3], 3);
ASSERT_EQUAL(v[4], 4);
tabulate_kernel<<<1, 1>>>(exec, v.begin(), v.end(), -_1);
{
cudaError_t const err = cudaDeviceSynchronize();
ASSERT_EQUAL(cudaSuccess, err);
}
ASSERT_EQUAL(v[0], 0);
ASSERT_EQUAL(v[1], -1);
ASSERT_EQUAL(v[2], -2);
ASSERT_EQUAL(v[3], -3);
ASSERT_EQUAL(v[4], -4);
tabulate_kernel<<<1, 1>>>(exec, v.begin(), v.end(), _1 * _1 * _1);
{
cudaError_t const err = cudaDeviceSynchronize();
ASSERT_EQUAL(cudaSuccess, err);
}
ASSERT_EQUAL(v[0], 0);
ASSERT_EQUAL(v[1], 1);
ASSERT_EQUAL(v[2], 8);
ASSERT_EQUAL(v[3], 27);
ASSERT_EQUAL(v[4], 64);
}
void TestTabulateDeviceSeq()
{
TestTabulateDevice(thrust::seq);
}
DECLARE_UNITTEST(TestTabulateDeviceSeq);
void TestTabulateDeviceDevice()
{
TestTabulateDevice(thrust::device);
}
DECLARE_UNITTEST(TestTabulateDeviceDevice);
#endif
void TestTabulateCudaStreams()
{
using namespace thrust::placeholders;
typedef thrust::device_vector<int> Vector;
typedef Vector::value_type T;
Vector v(5);
cudaStream_t s;
cudaStreamCreate(&s);
thrust::tabulate(thrust::cuda::par.on(s), v.begin(), v.end(), thrust::identity<T>());
cudaStreamSynchronize(s);
ASSERT_EQUAL(v[0], 0);
ASSERT_EQUAL(v[1], 1);
ASSERT_EQUAL(v[2], 2);
ASSERT_EQUAL(v[3], 3);
ASSERT_EQUAL(v[4], 4);
thrust::tabulate(thrust::cuda::par.on(s), v.begin(), v.end(), -_1);
cudaStreamSynchronize(s);
ASSERT_EQUAL(v[0], 0);
ASSERT_EQUAL(v[1], -1);
ASSERT_EQUAL(v[2], -2);
ASSERT_EQUAL(v[3], -3);
ASSERT_EQUAL(v[4], -4);
thrust::tabulate(thrust::cuda::par.on(s), v.begin(), v.end(), _1 * _1 * _1);
cudaStreamSynchronize(s);
ASSERT_EQUAL(v[0], 0);
ASSERT_EQUAL(v[1], 1);
ASSERT_EQUAL(v[2], 8);
ASSERT_EQUAL(v[3], 27);
ASSERT_EQUAL(v[4], 64);
cudaStreamSynchronize(s);
}
DECLARE_UNITTEST(TestTabulateCudaStreams);
|
