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lowvram #50

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lowvram #50

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36 changes: 18 additions & 18 deletions src/nodes/pipeline_loader.py
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@ def INPUT_TYPES(s):
return {
"required": {
"weight_dtype": (("float32", "float16", "bfloat16"), ),
"lowvram": ("BOOLEAN", {"default": True}),
}
}

Expand All @@ -30,14 +31,14 @@ def INPUT_TYPES(s):
RETURN_TYPES = ("PIPELINE",)
FUNCTION = "load_pipeline"

def load_pipeline(self, weight_dtype):
def load_pipeline(self, weight_dtype, lowvram):
if weight_dtype == "float32":
weight_dtype = torch.float32
elif weight_dtype == "float16":
weight_dtype = torch.float16
elif weight_dtype == "bfloat16":
weight_dtype = torch.bfloat16

noise_scheduler = DDPMScheduler.from_pretrained(
WEIGHTS_PATH,
subfolder="scheduler"
Expand All @@ -47,45 +48,38 @@ def load_pipeline(self, weight_dtype):
WEIGHTS_PATH,
subfolder="vae",
torch_dtype=weight_dtype
).requires_grad_(False).eval().to(DEVICE)

).requires_grad_(False).eval()
unet = UNet2DConditionModel.from_pretrained(
WEIGHTS_PATH,
subfolder="unet",
torch_dtype=weight_dtype
).requires_grad_(False).eval().to(DEVICE)

).requires_grad_(False).eval()
image_encoder = CLIPVisionModelWithProjection.from_pretrained(
WEIGHTS_PATH,
subfolder="image_encoder",
torch_dtype=weight_dtype
).requires_grad_(False).eval().to(DEVICE)

).requires_grad_(False).eval()
unet_encoder = UNet2DConditionModel_ref.from_pretrained(
WEIGHTS_PATH,
subfolder="unet_encoder",
torch_dtype=weight_dtype
).requires_grad_(False).eval().to(DEVICE)

).requires_grad_(False).eval()
text_encoder_one = CLIPTextModel.from_pretrained(
WEIGHTS_PATH,
subfolder="text_encoder",
torch_dtype=weight_dtype
).requires_grad_(False).eval().to(DEVICE)

).requires_grad_(False).eval()
text_encoder_two = CLIPTextModelWithProjection.from_pretrained(
WEIGHTS_PATH,
subfolder="text_encoder_2",
torch_dtype=weight_dtype
).requires_grad_(False).eval().to(DEVICE)

).requires_grad_(False).eval()
tokenizer_one = AutoTokenizer.from_pretrained(
WEIGHTS_PATH,
subfolder="tokenizer",
revision=None,
use_fast=False,
)

tokenizer_two = AutoTokenizer.from_pretrained(
WEIGHTS_PATH,
subfolder="tokenizer_2",
Expand All @@ -106,8 +100,14 @@ def load_pipeline(self, weight_dtype):
image_encoder=image_encoder,
torch_dtype=weight_dtype,
)
pipe.unet_encoder = unet_encoder
pipe = pipe.to(DEVICE)
pipe.weight_dtype = weight_dtype

pipe.unet_encoder = unet_encoder
pipe.unet_encoder.to(DEVICE)

print("[VTON]:--->lowvram:",lowvram)
if lowvram == True:
pipe.enable_sequential_cpu_offload()
else:
pipe.to(DEVICE)
#
return (pipe, )