tests/train/test_kto.py

import os

os.environ['CUDA_VISIBLE_DEVICES'] = '0'

kwargs = {
    'per_device_train_batch_size': 2,
    'save_steps': 5,
    'gradient_accumulation_steps': 4,
    'num_train_epochs': 1,
}


def test_llm():
    from swift import InferArguments, RLHFArguments, infer_main, rlhf_main
    result = rlhf_main(
        RLHFArguments(
            rlhf_type='kto',
            model='Qwen/Qwen2-7B-Instruct',
            dataset=['AI-ModelScope/ultrafeedback-binarized-preferences-cleaned-kto#100'],
            split_dataset_ratio=0.01,
            **kwargs))
    last_model_checkpoint = result['last_model_checkpoint']
    infer_main(InferArguments(adapters=last_model_checkpoint, load_data_args=True, merge_lora=True))


def test_mllm():
    from swift import InferArguments, RLHFArguments, infer_main, rlhf_main
    result = rlhf_main(
        RLHFArguments(
            rlhf_type='kto',
            model='Qwen/Qwen2-VL-7B-Instruct',
            dataset=['AI-ModelScope/ultrafeedback-binarized-preferences-cleaned-kto#100'],
            split_dataset_ratio=0.01,
            **kwargs))
    last_model_checkpoint = result['last_model_checkpoint']
    infer_main(InferArguments(adapters=last_model_checkpoint, load_data_args=True, merge_lora=True))


if __name__ == '__main__':
    # test_llm()
    test_mllm()