More user-friendly error messages (#59106)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/59106
Should make debugging a bit easier
Test Plan:
Example error in https://www.internalfb.com/intern/aibench/details/884106485190261 (open log for Portal or Portal+):
```
The following operation failed in the TorchScript interpreter.
Traceback of TorchScript, serialized code (most recent call last):
File "code/__torch__/torch/backends/_nnapi/prepare.py", line 29, in forward
_0 = uninitialized(__torch__.torch.classes._nnapi.Compilation)
if torch.__is__(self.comp, None):
_1 = (self).init(args, )
~~~~~~~~~~ <--- HERE
else:
pass
File "code/__torch__/torch/backends/_nnapi/prepare.py", line 97, in init
comp = __torch__.torch.classes._nnapi.Compilation.__new__(__torch__.torch.classes._nnapi.Compilation)
_22 = (comp).__init__()
_23 = (comp).init(self.ser_model, self.weights, )
~~~~~~~~~~ <--- HERE
self.comp = comp
return None
Traceback of TorchScript, original code (most recent call last):
File "/data/users/dhaziza/fbsource/fbcode/buck-out/dev/gen/mobile-vision/d2go/projects/facegen/tools/export_to_app#link-tree/torch/backends/_nnapi/prepare.py", line 47, in forward
def forward(self, args: List[torch.Tensor]) -> List[torch.Tensor]:
if self.comp is None:
self.init(args)
~~~~~~~~~ <--- HERE
comp = self.comp
assert comp is not None
File "/data/users/dhaziza/fbsource/fbcode/buck-out/dev/gen/mobile-vision/d2go/projects/facegen/tools/export_to_app#link-tree/torch/backends/_nnapi/prepare.py", line 42, in init
self.weights = [w.contiguous() for w in self.weights]
comp = torch.classes._nnapi.Compilation()
comp.init(self.ser_model, self.weights)
~~~~~~~~~ <--- HERE
self.comp = comp
RuntimeError: [enforce fail at nnapi_model_loader.cpp:171] result == ANEURALNETWORKS_NO_ERROR. NNAPI returned error: 4
```
Reviewed By: axitkhurana
Differential Revision: D28287450
fbshipit-source-id: ccd10301e1492f8879f9d6dd57b60c4e683ebb9e
