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"""
Quick loader for INT8 quantized HunyuanImage-3.0 model.
Generated automatically by hunyuan_quantize_int8.py
"""
import torch
from transformers import AutoModelForCausalLM, BitsAndBytesConfig
def load_quantized_hunyuan_int8(model_path="A:\Comfy25\ComfyUI_windows_portable\ComfyUI\models\HunyuanImage-3-INT8"):
"""Load the INT8 quantized HunyuanImage-3.0 model."""
quant_config = BitsAndBytesConfig(
load_in_8bit=True,
llm_int8_threshold=6.0,
)
model = AutoModelForCausalLM.from_pretrained(
model_path,
quantization_config=quant_config,
device_map="auto", # Distribute across GPU/CPU as needed
trust_remote_code=True,
torch_dtype=torch.bfloat16,
attn_implementation="sdpa",
)
# Load tokenizer
model.load_tokenizer(model_path)
return model
if __name__ == "__main__":
print("Loading INT8 quantized model...")
model = load_quantized_hunyuan_int8()
print("Model loaded successfully!")
print(f"Device map: {model.hf_device_map}")
# Check memory usage
if torch.cuda.is_available():
print(f"GPU memory allocated: {torch.cuda.memory_allocated() / 1024**3:.2f} GB")
print(f"GPU memory reserved: {torch.cuda.memory_reserved() / 1024**3:.2f} GB")
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