mirror of
https://github.com/comfyanonymous/ComfyUI.git
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Unified Weight Adapter system for better maintainability and future feature of Lora system (#7540)
This commit is contained in:
Kohaku-Blueleaf
GitHub
321
comfy/lora.py
321
comfy/lora.py
@@ -20,6 +20,7 @@ from __future__ import annotations
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import comfy.utils
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import comfy.model_management
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import comfy.model_base
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import comfy.weight_adapter as weight_adapter
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import logging
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import torch
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@@ -49,139 +50,12 @@ def load_lora(lora, to_load, log_missing=True):
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dora_scale = lora[dora_scale_name]
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loaded_keys.add(dora_scale_name)
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reshape_name = "{}.reshape_weight".format(x)
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reshape = None
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if reshape_name in lora.keys():
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try:
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reshape = lora[reshape_name].tolist()
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loaded_keys.add(reshape_name)
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except:
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pass
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regular_lora = "{}.lora_up.weight".format(x)
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diffusers_lora = "{}_lora.up.weight".format(x)
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diffusers2_lora = "{}.lora_B.weight".format(x)
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diffusers3_lora = "{}.lora.up.weight".format(x)
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mochi_lora = "{}.lora_B".format(x)
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transformers_lora = "{}.lora_linear_layer.up.weight".format(x)
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A_name = None
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if regular_lora in lora.keys():
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A_name = regular_lora
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B_name = "{}.lora_down.weight".format(x)
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mid_name = "{}.lora_mid.weight".format(x)
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elif diffusers_lora in lora.keys():
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A_name = diffusers_lora
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B_name = "{}_lora.down.weight".format(x)
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mid_name = None
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elif diffusers2_lora in lora.keys():
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A_name = diffusers2_lora
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B_name = "{}.lora_A.weight".format(x)
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mid_name = None
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elif diffusers3_lora in lora.keys():
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A_name = diffusers3_lora
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B_name = "{}.lora.down.weight".format(x)
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mid_name = None
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elif mochi_lora in lora.keys():
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A_name = mochi_lora
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B_name = "{}.lora_A".format(x)
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mid_name = None
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elif transformers_lora in lora.keys():
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A_name = transformers_lora
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B_name ="{}.lora_linear_layer.down.weight".format(x)
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mid_name = None
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if A_name is not None:
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mid = None
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if mid_name is not None and mid_name in lora.keys():
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mid = lora[mid_name]
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loaded_keys.add(mid_name)
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patch_dict[to_load[x]] = ("lora", (lora[A_name], lora[B_name], alpha, mid, dora_scale, reshape))
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loaded_keys.add(A_name)
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loaded_keys.add(B_name)
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######## loha
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hada_w1_a_name = "{}.hada_w1_a".format(x)
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hada_w1_b_name = "{}.hada_w1_b".format(x)
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hada_w2_a_name = "{}.hada_w2_a".format(x)
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hada_w2_b_name = "{}.hada_w2_b".format(x)
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hada_t1_name = "{}.hada_t1".format(x)
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hada_t2_name = "{}.hada_t2".format(x)
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if hada_w1_a_name in lora.keys():
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hada_t1 = None
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hada_t2 = None
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if hada_t1_name in lora.keys():
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hada_t1 = lora[hada_t1_name]
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hada_t2 = lora[hada_t2_name]
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loaded_keys.add(hada_t1_name)
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loaded_keys.add(hada_t2_name)
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patch_dict[to_load[x]] = ("loha", (lora[hada_w1_a_name], lora[hada_w1_b_name], alpha, lora[hada_w2_a_name], lora[hada_w2_b_name], hada_t1, hada_t2, dora_scale))
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loaded_keys.add(hada_w1_a_name)
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loaded_keys.add(hada_w1_b_name)
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loaded_keys.add(hada_w2_a_name)
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loaded_keys.add(hada_w2_b_name)
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######## lokr
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lokr_w1_name = "{}.lokr_w1".format(x)
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lokr_w2_name = "{}.lokr_w2".format(x)
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lokr_w1_a_name = "{}.lokr_w1_a".format(x)
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lokr_w1_b_name = "{}.lokr_w1_b".format(x)
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lokr_t2_name = "{}.lokr_t2".format(x)
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lokr_w2_a_name = "{}.lokr_w2_a".format(x)
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lokr_w2_b_name = "{}.lokr_w2_b".format(x)
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lokr_w1 = None
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if lokr_w1_name in lora.keys():
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lokr_w1 = lora[lokr_w1_name]
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loaded_keys.add(lokr_w1_name)
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lokr_w2 = None
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if lokr_w2_name in lora.keys():
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lokr_w2 = lora[lokr_w2_name]
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loaded_keys.add(lokr_w2_name)
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lokr_w1_a = None
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if lokr_w1_a_name in lora.keys():
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lokr_w1_a = lora[lokr_w1_a_name]
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loaded_keys.add(lokr_w1_a_name)
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lokr_w1_b = None
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if lokr_w1_b_name in lora.keys():
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lokr_w1_b = lora[lokr_w1_b_name]
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loaded_keys.add(lokr_w1_b_name)
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lokr_w2_a = None
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if lokr_w2_a_name in lora.keys():
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lokr_w2_a = lora[lokr_w2_a_name]
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loaded_keys.add(lokr_w2_a_name)
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lokr_w2_b = None
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if lokr_w2_b_name in lora.keys():
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lokr_w2_b = lora[lokr_w2_b_name]
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loaded_keys.add(lokr_w2_b_name)
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lokr_t2 = None
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if lokr_t2_name in lora.keys():
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lokr_t2 = lora[lokr_t2_name]
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loaded_keys.add(lokr_t2_name)
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if (lokr_w1 is not None) or (lokr_w2 is not None) or (lokr_w1_a is not None) or (lokr_w2_a is not None):
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patch_dict[to_load[x]] = ("lokr", (lokr_w1, lokr_w2, alpha, lokr_w1_a, lokr_w1_b, lokr_w2_a, lokr_w2_b, lokr_t2, dora_scale))
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#glora
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a1_name = "{}.a1.weight".format(x)
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a2_name = "{}.a2.weight".format(x)
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b1_name = "{}.b1.weight".format(x)
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b2_name = "{}.b2.weight".format(x)
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if a1_name in lora:
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patch_dict[to_load[x]] = ("glora", (lora[a1_name], lora[a2_name], lora[b1_name], lora[b2_name], alpha, dora_scale))
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loaded_keys.add(a1_name)
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loaded_keys.add(a2_name)
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loaded_keys.add(b1_name)
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loaded_keys.add(b2_name)
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for adapter_cls in weight_adapter.adapters:
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adapter = adapter_cls.load(x, lora, alpha, dora_scale, loaded_keys)
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if adapter is not None:
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patch_dict[to_load[x]] = adapter
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loaded_keys.update(adapter.loaded_keys)
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continue
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w_norm_name = "{}.w_norm".format(x)
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b_norm_name = "{}.b_norm".format(x)
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@@ -408,26 +282,6 @@ def model_lora_keys_unet(model, key_map={}):
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return key_map
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def weight_decompose(dora_scale, weight, lora_diff, alpha, strength, intermediate_dtype, function):
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dora_scale = comfy.model_management.cast_to_device(dora_scale, weight.device, intermediate_dtype)
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lora_diff *= alpha
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weight_calc = weight + function(lora_diff).type(weight.dtype)
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weight_norm = (
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weight_calc.transpose(0, 1)
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.reshape(weight_calc.shape[1], -1)
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.norm(dim=1, keepdim=True)
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.reshape(weight_calc.shape[1], *[1] * (weight_calc.dim() - 1))
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.transpose(0, 1)
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)
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weight_calc *= (dora_scale / weight_norm).type(weight.dtype)
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if strength != 1.0:
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weight_calc -= weight
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weight += strength * (weight_calc)
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else:
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weight[:] = weight_calc
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return weight
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def pad_tensor_to_shape(tensor: torch.Tensor, new_shape: list[int]) -> torch.Tensor:
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"""
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Pad a tensor to a new shape with zeros.
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@@ -482,6 +336,16 @@ def calculate_weight(patches, weight, key, intermediate_dtype=torch.float32, ori
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if isinstance(v, list):
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v = (calculate_weight(v[1:], v[0][1](comfy.model_management.cast_to_device(v[0][0], weight.device, intermediate_dtype, copy=True), inplace=True), key, intermediate_dtype=intermediate_dtype), )
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if isinstance(v, weight_adapter.WeightAdapterBase):
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output = v.calculate_weight(weight, key, strength, strength_model, offset, function, intermediate_dtype, original_weights)
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if output is None:
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logging.warning("Calculate Weight Failed: {} {}".format(v.name, key))
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else:
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weight = output
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if old_weight is not None:
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weight = old_weight
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continue
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if len(v) == 1:
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patch_type = "diff"
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elif len(v) == 2:
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@@ -508,157 +372,6 @@ def calculate_weight(patches, weight, key, intermediate_dtype=torch.float32, ori
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diff_weight = comfy.model_management.cast_to_device(target_weight, weight.device, intermediate_dtype) - \
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comfy.model_management.cast_to_device(original_weights[key][0][0], weight.device, intermediate_dtype)
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weight += function(strength * comfy.model_management.cast_to_device(diff_weight, weight.device, weight.dtype))
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elif patch_type == "lora": #lora/locon
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mat1 = comfy.model_management.cast_to_device(v[0], weight.device, intermediate_dtype)
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mat2 = comfy.model_management.cast_to_device(v[1], weight.device, intermediate_dtype)
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dora_scale = v[4]
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reshape = v[5]
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if reshape is not None:
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weight = pad_tensor_to_shape(weight, reshape)
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if v[2] is not None:
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alpha = v[2] / mat2.shape[0]
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else:
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alpha = 1.0
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if v[3] is not None:
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#locon mid weights, hopefully the math is fine because I didn't properly test it
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mat3 = comfy.model_management.cast_to_device(v[3], weight.device, intermediate_dtype)
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final_shape = [mat2.shape[1], mat2.shape[0], mat3.shape[2], mat3.shape[3]]
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mat2 = torch.mm(mat2.transpose(0, 1).flatten(start_dim=1), mat3.transpose(0, 1).flatten(start_dim=1)).reshape(final_shape).transpose(0, 1)
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try:
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lora_diff = torch.mm(mat1.flatten(start_dim=1), mat2.flatten(start_dim=1)).reshape(weight.shape)
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if dora_scale is not None:
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weight = weight_decompose(dora_scale, weight, lora_diff, alpha, strength, intermediate_dtype, function)
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else:
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weight += function(((strength * alpha) * lora_diff).type(weight.dtype))
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except Exception as e:
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logging.error("ERROR {} {} {}".format(patch_type, key, e))
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elif patch_type == "lokr":
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w1 = v[0]
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w2 = v[1]
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w1_a = v[3]
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w1_b = v[4]
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w2_a = v[5]
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w2_b = v[6]
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t2 = v[7]
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dora_scale = v[8]
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dim = None
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if w1 is None:
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dim = w1_b.shape[0]
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w1 = torch.mm(comfy.model_management.cast_to_device(w1_a, weight.device, intermediate_dtype),
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comfy.model_management.cast_to_device(w1_b, weight.device, intermediate_dtype))
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else:
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w1 = comfy.model_management.cast_to_device(w1, weight.device, intermediate_dtype)
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if w2 is None:
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dim = w2_b.shape[0]
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if t2 is None:
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w2 = torch.mm(comfy.model_management.cast_to_device(w2_a, weight.device, intermediate_dtype),
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comfy.model_management.cast_to_device(w2_b, weight.device, intermediate_dtype))
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else:
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w2 = torch.einsum('i j k l, j r, i p -> p r k l',
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comfy.model_management.cast_to_device(t2, weight.device, intermediate_dtype),
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comfy.model_management.cast_to_device(w2_b, weight.device, intermediate_dtype),
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comfy.model_management.cast_to_device(w2_a, weight.device, intermediate_dtype))
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else:
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w2 = comfy.model_management.cast_to_device(w2, weight.device, intermediate_dtype)
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if len(w2.shape) == 4:
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w1 = w1.unsqueeze(2).unsqueeze(2)
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if v[2] is not None and dim is not None:
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alpha = v[2] / dim
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else:
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alpha = 1.0
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try:
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lora_diff = torch.kron(w1, w2).reshape(weight.shape)
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if dora_scale is not None:
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weight = weight_decompose(dora_scale, weight, lora_diff, alpha, strength, intermediate_dtype, function)
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else:
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weight += function(((strength * alpha) * lora_diff).type(weight.dtype))
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except Exception as e:
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logging.error("ERROR {} {} {}".format(patch_type, key, e))
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elif patch_type == "loha":
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w1a = v[0]
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w1b = v[1]
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if v[2] is not None:
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alpha = v[2] / w1b.shape[0]
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else:
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alpha = 1.0
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w2a = v[3]
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w2b = v[4]
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dora_scale = v[7]
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if v[5] is not None: #cp decomposition
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t1 = v[5]
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t2 = v[6]
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m1 = torch.einsum('i j k l, j r, i p -> p r k l',
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comfy.model_management.cast_to_device(t1, weight.device, intermediate_dtype),
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comfy.model_management.cast_to_device(w1b, weight.device, intermediate_dtype),
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comfy.model_management.cast_to_device(w1a, weight.device, intermediate_dtype))
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m2 = torch.einsum('i j k l, j r, i p -> p r k l',
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comfy.model_management.cast_to_device(t2, weight.device, intermediate_dtype),
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comfy.model_management.cast_to_device(w2b, weight.device, intermediate_dtype),
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comfy.model_management.cast_to_device(w2a, weight.device, intermediate_dtype))
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else:
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m1 = torch.mm(comfy.model_management.cast_to_device(w1a, weight.device, intermediate_dtype),
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comfy.model_management.cast_to_device(w1b, weight.device, intermediate_dtype))
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m2 = torch.mm(comfy.model_management.cast_to_device(w2a, weight.device, intermediate_dtype),
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comfy.model_management.cast_to_device(w2b, weight.device, intermediate_dtype))
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try:
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lora_diff = (m1 * m2).reshape(weight.shape)
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if dora_scale is not None:
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weight = weight_decompose(dora_scale, weight, lora_diff, alpha, strength, intermediate_dtype, function)
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else:
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weight += function(((strength * alpha) * lora_diff).type(weight.dtype))
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except Exception as e:
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logging.error("ERROR {} {} {}".format(patch_type, key, e))
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elif patch_type == "glora":
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dora_scale = v[5]
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old_glora = False
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if v[3].shape[1] == v[2].shape[0] == v[0].shape[0] == v[1].shape[1]:
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rank = v[0].shape[0]
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old_glora = True
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if v[3].shape[0] == v[2].shape[1] == v[0].shape[1] == v[1].shape[0]:
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if old_glora and v[1].shape[0] == weight.shape[0] and weight.shape[0] == weight.shape[1]:
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pass
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else:
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old_glora = False
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rank = v[1].shape[0]
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a1 = comfy.model_management.cast_to_device(v[0].flatten(start_dim=1), weight.device, intermediate_dtype)
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a2 = comfy.model_management.cast_to_device(v[1].flatten(start_dim=1), weight.device, intermediate_dtype)
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b1 = comfy.model_management.cast_to_device(v[2].flatten(start_dim=1), weight.device, intermediate_dtype)
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b2 = comfy.model_management.cast_to_device(v[3].flatten(start_dim=1), weight.device, intermediate_dtype)
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if v[4] is not None:
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alpha = v[4] / rank
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else:
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alpha = 1.0
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try:
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if old_glora:
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lora_diff = (torch.mm(b2, b1) + torch.mm(torch.mm(weight.flatten(start_dim=1).to(dtype=intermediate_dtype), a2), a1)).reshape(weight.shape) #old lycoris glora
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else:
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if weight.dim() > 2:
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lora_diff = torch.einsum("o i ..., i j -> o j ...", torch.einsum("o i ..., i j -> o j ...", weight.to(dtype=intermediate_dtype), a1), a2).reshape(weight.shape)
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else:
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lora_diff = torch.mm(torch.mm(weight.to(dtype=intermediate_dtype), a1), a2).reshape(weight.shape)
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lora_diff += torch.mm(b1, b2).reshape(weight.shape)
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if dora_scale is not None:
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weight = weight_decompose(dora_scale, weight, lora_diff, alpha, strength, intermediate_dtype, function)
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else:
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weight += function(((strength * alpha) * lora_diff).type(weight.dtype))
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except Exception as e:
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logging.error("ERROR {} {} {}".format(patch_type, key, e))
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else:
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logging.warning("patch type not recognized {} {}".format(patch_type, key))
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