1#include <gtest/gtest.h>
2
3#include <torch/torch.h>
4
5#include <torch/cuda.h>
6
7// NB: This file is compiled even in CPU build (for some reason), so
8// make sure you don't include any CUDA only headers.
9
10using namespace at;
11
12// TODO: This might be generally helpful aliases elsewhere.
13at::Device CPUDevice() {
14 return at::Device(at::kCPU);
15}
16at::Device CUDADevice(DeviceIndex index) {
17 return at::Device(at::kCUDA, index);
18}
19
20// A macro so we don't lose location information when an assertion fails.
21#define REQUIRE_OPTIONS(device_, index_, type_, layout_) \
22 ASSERT_EQ(options.device().type(), Device((device_), (index_)).type()); \
23 ASSERT_TRUE( \
24 options.device().index() == Device((device_), (index_)).index()); \
25 ASSERT_EQ(typeMetaToScalarType(options.dtype()), (type_)); \
26 ASSERT_TRUE(options.layout() == (layout_))
27
28#define REQUIRE_TENSOR_OPTIONS(device_, index_, type_, layout_) \
29 ASSERT_EQ(tensor.device().type(), Device((device_), (index_)).type()); \
30 ASSERT_EQ(tensor.device().index(), Device((device_), (index_)).index()); \
31 ASSERT_EQ(tensor.scalar_type(), (type_)); \
32 ASSERT_TRUE(tensor.options().layout() == (layout_))
33
34TEST(TensorOptionsTest, ConstructsWellFromCUDATypes_CUDA) {
35 auto options = CUDA(kFloat).options();
36 REQUIRE_OPTIONS(kCUDA, -1, kFloat, kStrided);
37
38 options = CUDA(kInt).options();
39 REQUIRE_OPTIONS(kCUDA, -1, kInt, kStrided);
40
41 options = getDeprecatedTypeProperties(Backend::SparseCUDA, kFloat).options();
42 REQUIRE_OPTIONS(kCUDA, -1, kFloat, kSparse);
43
44 options = getDeprecatedTypeProperties(Backend::SparseCUDA, kByte).options();
45 REQUIRE_OPTIONS(kCUDA, -1, kByte, kSparse);
46
47 // NOLINTNEXTLINE(bugprone-argument-comment,cppcoreguidelines-avoid-magic-numbers)
48 options = CUDA(kFloat).options(/*device=*/5);
49 REQUIRE_OPTIONS(kCUDA, 5, kFloat, kStrided);
50
51 options =
52 // NOLINTNEXTLINE(bugprone-argument-comment,cppcoreguidelines-avoid-magic-numbers)
53 getDeprecatedTypeProperties(Backend::SparseCUDA, kFloat)
54 .options(/*device=*/5);
55 REQUIRE_OPTIONS(kCUDA, 5, kFloat, kSparse);
56}
57
58TEST(TensorOptionsTest, ConstructsWellFromCUDATensors_MultiCUDA) {
59 auto options = empty(5, device(kCUDA).dtype(kDouble)).options();
60 REQUIRE_OPTIONS(kCUDA, 0, kDouble, kStrided);
61
62 options = empty(5, getDeprecatedTypeProperties(Backend::SparseCUDA, kByte))
63 .options();
64 REQUIRE_OPTIONS(kCUDA, 0, kByte, kSparse);
65
66 if (torch::cuda::device_count() > 1) {
67 Tensor tensor;
68 {
69 DeviceGuard guard(CUDADevice(1));
70 tensor = empty(5, device(kCUDA));
71 }
72 options = tensor.options();
73 REQUIRE_OPTIONS(kCUDA, 1, kFloat, kStrided);
74
75 {
76 DeviceGuard guard(CUDADevice(1));
77 tensor = empty(5, device(kCUDA).layout(kSparse));
78 }
79 options = tensor.options();
80 REQUIRE_OPTIONS(kCUDA, 1, kFloat, kSparse);
81 }
82}
83