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Warn instead of raising exceptions in inf-check #1852

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merged 2 commits into from
Dec 31, 2024
Merged

Warn instead of raising exceptions in inf-check #1852

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5b598ea
warn instead of raising exceptions in inf-check
zhu-han Dec 30, 2024
35c8de7
Fix the style issue
zhu-han Dec 30, 2024
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8 changes: 2 additions & 6 deletions icefall/hooks.py
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Original file line number Diff line number Diff line change
Expand Up @@ -40,19 +40,15 @@ def register_inf_check_hooks(model: nn.Module) -> None:
def forward_hook(_module, _input, _output, _name=name):
if isinstance(_output, Tensor):
if not torch.isfinite(_output.to(torch.float32).sum()):
raise ValueError(
f"The sum of {_name}.output is not finite: {_output}"
)
logging.warning(f"The sum of {_name}.output is not finite")
elif isinstance(_output, tuple):
for i, o in enumerate(_output):
if isinstance(o, tuple):
o = o[0]
if not isinstance(o, Tensor):
continue
if not torch.isfinite(o.to(torch.float32).sum()):
raise ValueError(
f"The sum of {_name}.output[{i}] is not finite: {_output}"
)
logging.warning(f"The sum of {_name}.output[{i}] is not finite")

# default param _name is a way to capture the current value of the variable "name".
def backward_hook(_module, _input, _output, _name=name):
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