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
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
import halide as hl
def test_target():
# Target("") should be exactly like get_host_target().
t1 = hl.get_host_target()
t2 = hl.Target("")
assert t1 == t2, "Default ctor failure"
assert t1.supported()
# to_string roundtripping
t1 = hl.Target()
ts = t1.to_string()
assert ts == "arch_unknown-0-os_unknown"
# Note, this should *not* validate, since validate_target_string
# now returns false if any of arch-bits-os are undefined
assert not hl.Target.validate_target_string(ts)
# Don't attempt to roundtrip this: trying to create
# a Target with unknown portions will now assert-fail.
#
# t2 = hl.Target(ts)
# assert t2 == t1
# repr() and str()
assert str(t1) == "arch_unknown-0-os_unknown"
assert repr(t1) == "<halide.Target arch_unknown-0-os_unknown>"
assert t1.os == hl.TargetOS.OSUnknown
assert t1.arch == hl.TargetArch.ArchUnknown
assert t1.bits == 0
# Full specification round-trip:
t1 = hl.Target(hl.TargetOS.Linux, hl.TargetArch.X86, 32, [hl.TargetFeature.SSE41])
ts = t1.to_string()
assert ts == "x86-32-linux-sse41"
assert hl.Target.validate_target_string(ts)
# Full specification (without features) round-trip:
t1 = hl.Target(hl.TargetOS.Linux, hl.TargetArch.X86, 32)
ts = t1.to_string()
assert ts == "x86-32-linux"
assert hl.Target.validate_target_string(ts)
# Full specification round-trip, crazy features
t1 = hl.Target(
hl.TargetOS.Android,
hl.TargetArch.ARM,
32,
[
hl.TargetFeature.JIT,
hl.TargetFeature.CUDA,
hl.TargetFeature.OpenCL,
hl.TargetFeature.Debug,
],
)
ts = t1.to_string()
assert ts == "arm-32-android-cuda-debug-jit-opencl"
assert hl.Target.validate_target_string(ts)
# Expected failures:
ts = "host-unknowntoken"
assert not hl.Target.validate_target_string(ts)
ts = "x86-23"
assert not hl.Target.validate_target_string(ts)
# bits == 0 is allowed only if arch_unknown and os_unknown are specified,
# and no features are set
ts = "x86-0"
assert not hl.Target.validate_target_string(ts)
ts = "0-arch_unknown-os_unknown-sse41"
assert not hl.Target.validate_target_string(ts)
# "host" is only supported as the first token
ts = "opencl-host"
assert not hl.Target.validate_target_string(ts)
# set_feature
t1 = hl.Target(hl.TargetOS.Linux, hl.TargetArch.X86, 32, [hl.TargetFeature.SSE41])
assert t1.has_feature(hl.TargetFeature.SSE41)
assert not t1.has_feature(hl.TargetFeature.AVX)
t1.set_feature(hl.TargetFeature.AVX)
t1.set_feature(hl.TargetFeature.SSE41, False)
assert t1.has_feature(hl.TargetFeature.AVX)
assert not t1.has_feature(hl.TargetFeature.SSE41)
# set_features
t1 = hl.Target(hl.TargetOS.Linux, hl.TargetArch.X86, 32, [hl.TargetFeature.SSE41])
assert t1.has_feature(hl.TargetFeature.SSE41)
assert not t1.has_feature(hl.TargetFeature.AVX)
t1.set_features([hl.TargetFeature.SSE41], False)
t1.set_features([hl.TargetFeature.AVX, hl.TargetFeature.AVX2], True)
assert t1.has_feature(hl.TargetFeature.AVX)
assert t1.has_feature(hl.TargetFeature.AVX2)
assert not t1.has_feature(hl.TargetFeature.SSE41)
# with_feature
t1 = hl.Target(hl.TargetOS.Linux, hl.TargetArch.X86, 32, [hl.TargetFeature.SSE41])
t2 = t1.with_feature(hl.TargetFeature.NoAsserts).with_feature(
hl.TargetFeature.NoBoundsQuery
)
ts = t2.to_string()
assert ts == "x86-32-linux-no_asserts-no_bounds_query-sse41"
# without_feature
t1 = hl.Target(
hl.TargetOS.Linux,
hl.TargetArch.X86,
32,
[hl.TargetFeature.SSE41, hl.TargetFeature.NoAsserts],
)
# Note that NoBoundsQuery wasn't set here, so 'without' is a no-op
t2 = t1.without_feature(hl.TargetFeature.NoAsserts).without_feature(
hl.TargetFeature.NoBoundsQuery
)
ts = t2.to_string()
assert ts == "x86-32-linux-sse41"
# natural_vector_size
# SSE4.1 is 16 bytes wide
t1 = hl.Target(hl.TargetOS.Linux, hl.TargetArch.X86, 32, [hl.TargetFeature.SSE41])
assert t1.natural_vector_size(hl.UInt(8)) == 16
assert t1.natural_vector_size(hl.Int(16)) == 8
assert t1.natural_vector_size(hl.UInt(32)) == 4
assert t1.natural_vector_size(hl.Float(32)) == 4
# has_gpu_feature
t1 = hl.Target(hl.TargetOS.Linux, hl.TargetArch.X86, 32, [hl.TargetFeature.OpenCL])
t2 = hl.Target(hl.TargetOS.Linux, hl.TargetArch.X86, 32, [])
assert t1.has_gpu_feature()
assert not t2.has_gpu_feature()
# has_large_buffers & maximum_buffer_size
t1 = hl.Target(
hl.TargetOS.Linux,
hl.TargetArch.X86,
64,
[hl.TargetFeature.LargeBuffers],
)
t2 = hl.Target(hl.TargetOS.Linux, hl.TargetArch.X86, 64, [])
assert t1.has_large_buffers()
assert t1.maximum_buffer_size() == 9223372036854775807
assert not t2.has_large_buffers()
assert t2.maximum_buffer_size() == 2147483647
# supports_device_api
t1 = hl.Target(hl.TargetOS.Linux, hl.TargetArch.X86, 64, [hl.TargetFeature.CUDA])
t2 = hl.Target(hl.TargetOS.Linux, hl.TargetArch.X86, 64)
assert t1.supports_device_api(hl.DeviceAPI.CUDA)
assert not t2.supports_device_api(hl.DeviceAPI.CUDA)
# supports_type (deprecated version)
t1 = hl.Target(hl.TargetOS.OSX, hl.TargetArch.X86, 64, [hl.TargetFeature.Metal])
t2 = hl.Target(hl.TargetOS.OSX, hl.TargetArch.X86, 64)
assert not t1.supports_type(hl.Float(64))
assert t2.supports_type(hl.Float(64))
# supports_type (preferred version)
t1 = hl.Target(hl.TargetOS.OSX, hl.TargetArch.X86, 64, [hl.TargetFeature.Metal])
t2 = hl.Target(hl.TargetOS.OSX, hl.TargetArch.X86, 64)
assert not t1.supports_type(hl.Float(64), hl.DeviceAPI.Metal)
assert not t2.supports_type(hl.Float(64), hl.DeviceAPI.Metal)
# target_feature_for_device_api
assert (
hl.target_feature_for_device_api(hl.DeviceAPI.OpenCL) == hl.TargetFeature.OpenCL
)
# with_feature with non-convertible lists
try:
t1 = hl.Target(hl.TargetOS.Linux, hl.TargetArch.X86, 32, ["this is a string"])
except TypeError as e:
assert "incompatible constructor arguments" in str(e)
else:
assert False, "Did not see expected exception!"
if __name__ == "__main__":
test_target()
|
