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
|
"""Internal feature flags for torch.onnx.
NOTE: These flags are experimental only. Any flag here can be removed at any
time without notice.
"""
import logging
import os
logger = logging.getLogger(__name__)
def _load_boolean_flag(
name: str,
*,
this_will: str,
deprecated: bool = False,
default: bool = False,
) -> bool:
"""Load a boolean flag from environment variable.
Args:
name: The name of the environment variable.
this_will: A string that describes what this flag will do.
deprecated: Whether this flag is deprecated.
default: The default value if envvar not defined.
"""
undefined = os.getenv(name) is None
state = os.getenv(name) == "1"
if state:
if deprecated:
logger.error(
"Experimental flag %s is deprecated. Please remove it from your environment.",
name,
)
else:
logger.warning(
"Experimental flag %s is enabled. This will %s.", name, this_will
)
if undefined:
state = default
return state
USE_EXPERIMENTAL_LOGIC: bool = _load_boolean_flag(
"TORCH_ONNX_USE_EXPERIMENTAL_LOGIC",
this_will="use ExportedProgram and the new torch.onnx export logic",
)
|
