mirror of
https://github.com/oobabooga/text-generation-webui.git
synced 2024-11-24 17:06:53 +01:00
44 lines
1.4 KiB
Python
44 lines
1.4 KiB
Python
from pathlib import Path
|
|
|
|
from auto_gptq import AutoGPTQForCausalLM
|
|
|
|
import modules.shared as shared
|
|
from modules.logging_colors import logger
|
|
from modules.models import get_max_memory_dict
|
|
|
|
|
|
def load_quantized(model_name):
|
|
path_to_model = Path(f'{shared.args.model_dir}/{model_name}')
|
|
pt_path = None
|
|
use_safetensors = False
|
|
|
|
# Find the model checkpoint
|
|
for ext in ['.safetensors', '.pt', '.bin']:
|
|
found = list(path_to_model.glob(f"*{ext}"))
|
|
if len(found) > 0:
|
|
if len(found) > 1:
|
|
logger.warning(f'More than one {ext} model has been found. The last one will be selected. It could be wrong.')
|
|
|
|
pt_path = found[-1]
|
|
if ext == '.safetensors':
|
|
use_safetensors = True
|
|
|
|
break
|
|
|
|
if pt_path is None:
|
|
logger.error("The model could not be loaded because its checkpoint file in .bin/.pt/.safetensors format could not be located.")
|
|
return
|
|
|
|
# Define the params for AutoGPTQForCausalLM.from_quantized
|
|
params = {
|
|
'model_basename': pt_path.stem,
|
|
'device': "cuda:0" if not shared.args.cpu else "cpu",
|
|
'use_triton': shared.args.triton,
|
|
'use_safetensors': use_safetensors,
|
|
'max_memory': get_max_memory_dict()
|
|
}
|
|
|
|
logger.warning(f"The AutoGPTQ params are: {params}")
|
|
model = AutoGPTQForCausalLM.from_quantized(path_to_model, **params)
|
|
return model
|