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fix peft cpu ut failure #1765

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fix peft cpu ut failure #1765

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0e8e535
fix peft cpu ut failure
yao-matrix Sep 25, 2025
9ff90e1
Update modules.py
yao-matrix Sep 26, 2025
052fed0
fix ruff
yao-matrix Sep 29, 2025
91e3f87
Merge branch 'main' into bug-fix
yao-matrix Sep 29, 2025
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5 changes: 3 additions & 2 deletions bitsandbytes/nn/modules.py
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Original file line number Diff line number Diff line change
Expand Up @@ -679,6 +679,7 @@ def to(self: T, tensor: Tensor, non_blocking: bool = ...) -> T: ...
def to(self, *args, **kwargs):
device, dtype, non_blocking, convert_to_format = torch._C._nn._parse_to(*args, **kwargs)


if device is not None and device.type != "meta" and self.data.device.type == "cpu":
if device.type != "cpu" or self.data.dtype != torch.int8:
return self._quantize(device)
Expand All @@ -690,8 +691,8 @@ def to(self, *args, **kwargs):
requires_grad=self.requires_grad,
has_fp16_weights=self.has_fp16_weights,
)
new_param.CB = self.CB
new_param.SCB = self.SCB
new_param.CB = self.CB.to(device=device) if self.CB != None else self.CB
new_param.SCB = self.SCB.to(device=device) if self.SCB != None else self.SCB

return new_param

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