mlx-examples/llms/qwen/convert.py
Awni Hannun 27c0a8c002
Add llms subdir + update README (#145)
* add llms subdir + update README

* nits

* use same pre-commit as mlx

* update readmes a bit

* format
2023-12-20 10:22:25 -08:00

44 lines
1.0 KiB
Python

import argparse
import json
import numpy as np
import torch
from transformers import AutoModelForCausalLM
def replace_key(key: str) -> str:
if key.startswith("transformer."):
# remove transformer prefix
key = key.replace("transformer.", "")
return key
def convert(model_path: str = "Qwen/Qwen-1_8B"):
model = AutoModelForCausalLM.from_pretrained(
model_path, trust_remote_code=True, torch_dtype=torch.float16
)
state_dict = model.state_dict()
weights = {replace_key(k): v.numpy() for k, v in state_dict.items()}
np.savez("weights.npz", **weights)
# write config
config = model.config
config_dict = config.to_dict()
with open("config.json", "w") as f:
json.dump(config_dict, f, indent=4)
if __name__ == "__main__":
parser = argparse.ArgumentParser(description="Convert Qwen model to npz")
parser.add_argument(
"--model",
help="The huggingface model to be converted",
default="Qwen/Qwen-1_8B",
)
args = parser.parse_args()
convert(args.model)