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Configuration error
Delete finetune.py
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finetune.py
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# finetune.py - Run this on a GPU machine (Colab, RunPod, etc.)
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from transformers import AutoModelForCausalLM, AutoTokenizer, TrainingArguments, Trainer
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from peft import LoraConfig, get_peft_model
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from datasets import load_dataset
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import torch
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# Configuration
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MODEL_NAME = "meta-llama/Llama-3.2-1B-Instruct"
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OUTPUT_NAME = "Llama-3.2-1B-Codex" # Must start with "Llama"
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DATASET_NAME = "bigcode/the-stack-dedup" # Or use your own dataset
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# Load model
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tokenizer = AutoTokenizer.from_pretrained(MODEL_NAME)
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tokenizer.pad_token = tokenizer.eos_token
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model = AutoModelForCausalLM.from_pretrained(
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MODEL_NAME,
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torch_dtype=torch.bfloat16,
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device_map="auto"
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)
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# LoRA config
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lora_config = LoraConfig(
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r=16,
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lora_alpha=32,
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target_modules=["q_proj", "v_proj", "k_proj", "o_proj"],
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lora_dropout=0.1,
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task_type="CAUSAL_LM"
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)
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model = get_peft_model(model, lora_config)
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# Load and prepare dataset
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dataset = load_dataset("json", data_files="your_code_data.json") # Replace with your data
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def format_code_example(example):
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messages = [
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{"role": "system", "content": "You are an expert programmer."},
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{"role": "user", "content": example["instruction"]},
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{"role": "assistant", "content": example["code"]}
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]
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return {"text": tokenizer.apply_chat_template(messages, tokenize=False)}
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dataset = dataset.map(format_code_example)
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# Train
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training_args = TrainingArguments(
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output_dir="./codex-finetuned",
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num_train_epochs=3,
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per_device_train_batch_size=1,
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gradient_accumulation_steps=4,
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learning_rate=2e-4,
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fp16=True,
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logging_steps=10,
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save_strategy="epoch",
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push_to_hub=True,
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hub_model_id=OUTPUT_NAME,
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)
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trainer = Trainer(
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model=model,
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args=training_args,
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train_dataset=dataset["train"],
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)
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trainer.train()
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trainer.push_to_hub()
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