torch.compiler.is_compiling

torch.compiler.is_compiling()

Indicates whether a graph is executed/traced as part of torch.compile() or torch.export().

The flag is per session: it is True in the thread running a torch.compile / torch.export tracing session. Any other threads will see False.

Note that there are 2 other related flags that should deprecated eventually:

• torch._dynamo.external_utils.is_compiling()

• torch._utils.is_compiling()

Example:

>>> def forward(self, x):
>>>     if not torch.compiler.is_compiling():
>>>        pass # ...logic that is not needed in a compiled/traced graph...
>>>
>>>     # ...rest of the function...

Return type:

bool