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Accelerate

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kijai
2024-04-13 17:48:47 +03:00
parent 49afedaddd
commit 7596566a89
1 changed files with 34 additions and 14 deletions
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nodes_v2.py
+34 -14
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@@ -13,6 +13,14 @@ import open_clip
from contextlib import contextmanager, nullcontext
import gc
from contextlib import nullcontext
try:
from accelerate import init_empty_weights
from accelerate.utils import set_module_tensor_to_device
is_accelerate_available = True
except:
pass
from transformers import (
CLIPTextModel,
CLIPTokenizer,
@@ -39,7 +47,7 @@ def build_text_model_from_openai_state_dict(
state_dict: dict,
cast_dtype=torch.float16,
):
device = mm.get_torch_device()
embed_dim = state_dict["text_projection"].shape[1]
context_length = state_dict["positional_embedding"].shape[0]
vocab_size = state_dict["token_embedding.weight"].shape[0]
@@ -57,15 +65,17 @@ def build_text_model_from_openai_state_dict(
)
with patch_build_vision_tower():
model = open_clip.CLIP(
embed_dim,
vision_cfg=vision_cfg,
text_cfg=text_cfg,
quick_gelu=True,
cast_dtype=cast_dtype,
)
model.load_state_dict(state_dict, strict=False)
with (init_empty_weights() if is_accelerate_available else nullcontext()):
model = open_clip.CLIP(
embed_dim,
vision_cfg=vision_cfg,
text_cfg=text_cfg,
quick_gelu=True,
cast_dtype=cast_dtype,
)
for key in state_dict:
set_module_tensor_to_device(model, key, device=device, value=state_dict[key])
#model.load_state_dict(state_dict, strict=False)
model = model.eval()
for param in model.parameters():
param.requires_grad = False
@@ -849,6 +859,7 @@ fp8_unet casts the unet weights to torch.float8_e4m3fn, which saves a lot of VRA
config.model.target = ".SUPIR.models.SUPIR_model_v2.SUPIRModel"
pbar = comfy.utils.ProgressBar(5)
#with (init_empty_weights() if is_accelerate_available else nullcontext()):
self.model = instantiate_from_config(config.model).cpu()
self.model.model.dtype = dtype
pbar.update(1)
@@ -856,7 +867,9 @@ fp8_unet casts the unet weights to torch.float8_e4m3fn, which saves a lot of VRA
print(f"Attempting to load SDXL model from node inputs")
mm.load_model_gpu(model)
sdxl_state_dict = model.model.state_dict_for_saving(None, vae.get_sd(), None)
self.model.load_state_dict(sdxl_state_dict, strict=False)
for key in sdxl_state_dict:
set_module_tensor_to_device(self.model, key, device=device, dtype=dtype, value=sdxl_state_dict[key])
#self.model.load_state_dict(sdxl_state_dict, strict=False)
if fp8_unet:
self.model.model.to(torch.float8_e4m3fn)
else:
@@ -879,10 +892,13 @@ fp8_unet casts the unet weights to torch.float8_e4m3fn, which saves a lot of VRA
replace_prefix = {}
replace_prefix["conditioner.embedders.0.transformer."] = ""
clip_l_sd = comfy.utils.state_dict_prefix_replace(clip_sd, replace_prefix, filter_keys=False)
clip_l_sd = comfy.utils.state_dict_prefix_replace(clip_sd, replace_prefix, filter_keys=True)
clip_text_config = CLIPTextConfig.from_pretrained(clip_config_path)
self.model.conditioner.embedders[0].tokenizer = CLIPTokenizer.from_pretrained(tokenizer_path)
self.model.conditioner.embedders[0].transformer = CLIPTextModel(clip_text_config)
with (init_empty_weights() if is_accelerate_available else nullcontext()):
self.model.conditioner.embedders[0].transformer = CLIPTextModel(clip_text_config)
for key in clip_l_sd:
set_module_tensor_to_device(self.model.conditioner.embedders[0].transformer, key, device=device, dtype=dtype, value=clip_l_sd[key])
self.model.conditioner.embedders[0].transformer.load_state_dict(clip_l_sd, strict=False)
self.model.conditioner.embedders[0].eval()
for param in self.model.conditioner.embedders[0].parameters():
@@ -911,7 +927,11 @@ fp8_unet casts the unet weights to torch.float8_e4m3fn, which saves a lot of VRA
try:
print(f'Attempting to load SUPIR model: [{SUPIR_MODEL_PATH}]')
supir_state_dict = load_state_dict(SUPIR_MODEL_PATH)
self.model.load_state_dict(supir_state_dict, strict=False)
if "Q" not in supir_model: #I don't know why this doesn't work with the Q model.
for key in supir_state_dict:
set_module_tensor_to_device(self.model, key, device=device, dtype=dtype, value=supir_state_dict[key])
else:
self.model.load_state_dict(supir_state_dict, strict=False)
if fp8_unet:
self.model.model.to(torch.float8_e4m3fn)
else: