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Initial work on adding 'model_as_lora' lora type to calculate_weight

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kosinkadink1@gmail.com 2024-09-17 15:30:33 +09:00
parent cfb145187d
commit c29006e669
1 changed files with 5 additions and 1 deletions
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6
comfy/lora.py
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@ -396,7 +396,7 @@ def pad_tensor_to_shape(tensor: torch.Tensor, new_shape: list[int]) -> torch.Ten
return padded_tensor
def calculate_weight(patches, weight, key, intermediate_dtype=torch.float32):
def calculate_weight(patches, weight, key, intermediate_dtype=torch.float32, original_weights=None):
for p in patches:
strength = p[0]
v = p[1]
@ -436,6 +436,10 @@ def calculate_weight(patches, weight, key, intermediate_dtype=torch.float32):
logging.warning("WARNING SHAPE MISMATCH {} WEIGHT NOT MERGED {} != {}".format(key, diff.shape, weight.shape))
else:
weight += function(strength * comfy.model_management.cast_to_device(diff, weight.device, weight.dtype))
elif patch_type == "model_as_lora":
target_weight: torch.Tensor = v[0]
diff_weight = target_weight.to(intermediate_dtype) - original_weights[key].to(intermediate_dtype)
weight += function(strength * comfy.model_management.cast_to_device(diff_weight, weight.device, weight.dtype))
elif patch_type == "lora": #lora/locon
mat1 = comfy.model_management.cast_to_device(v[0], weight.device, intermediate_dtype)
mat2 = comfy.model_management.cast_to_device(v[1], weight.device, intermediate_dtype)