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Fix dtype error in MHA layer/change dtype checking mechanism for manual cast #14791

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merged 4 commits into from
Jan 29, 2024
Merged

Fix dtype error in MHA layer/change dtype checking mechanism for manual cast #14791

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750dd60
Fix potential bugs
KohakuBlueleaf Jan 29, 2024
6e7f086
linting
KohakuBlueleaf Jan 29, 2024
d243e24
Try to reverse the dtype checking mechanism
KohakuBlueleaf Jan 29, 2024
f9ba7e6
Revert "Try to reverse the dtype checking mechanism"
KohakuBlueleaf Jan 29, 2024
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10 changes: 7 additions & 3 deletions modules/devices.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,6 @@

import torch
from modules import errors, shared
from modules import torch_utils

if sys.platform == "darwin":
from modules import mac_specific
Expand Down Expand Up @@ -141,7 +140,12 @@ def forward_wrapper(self, *args, **kwargs):
args = [arg.to(target_dtype) if isinstance(arg, torch.Tensor) else arg for arg in args]
kwargs = {k: v.to(target_dtype) if isinstance(v, torch.Tensor) else v for k, v in kwargs.items()}

org_dtype = torch_utils.get_param(self).dtype
org_dtype = target_dtype
for param in self.parameters():
if param.dtype != target_dtype:
org_dtype = param.dtype
break

if org_dtype != target_dtype:
self.to(target_dtype)
result = self.org_forward(*args, **kwargs)
Expand Down Expand Up @@ -170,7 +174,7 @@ def manual_cast(target_dtype):
continue
applied = True
org_forward = module_type.forward
if module_type == torch.nn.MultiheadAttention and has_xpu():
if module_type == torch.nn.MultiheadAttention:
module_type.forward = manual_cast_forward(torch.float32)
else:
module_type.forward = manual_cast_forward(target_dtype)
Expand Down
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