| from transformers import PretrainedConfig, AutoConfig, CONFIG_MAPPING |
| from transformers.dynamic_module_utils import get_class_from_dynamic_module |
| from transformers.utils import logging |
|
|
| logger = logging.get_logger(__name__) |
|
|
| class DMLLMConfig(PretrainedConfig): |
| model_type = "dmllm" |
| is_composition = True |
|
|
| def __init__(self, |
| language_model_config=None, |
| vision_model_config=None, |
| vision_abstractor_config=None, |
| image_token_id=None, |
| image_size=512, |
| patch_size=16, |
| downsample_ratio=0.5, |
| vision_select_layer=-2, |
| replacement_noise_mode=False, |
| **kwargs): |
| super().__init__(**kwargs) |
| self.replacement_noise_mode = replacement_noise_mode |
| self.image_size = image_size |
| self.patch_size = patch_size |
| self.downsample_ratio = downsample_ratio |
| self.num_image_token = int((image_size // patch_size) ** 2 * (downsample_ratio ** 2)) |
| self.vision_select_layer = vision_select_layer |
|
|
| if isinstance(language_model_config, dict): |
| if '_name_or_path' not in language_model_config: |
| language_model_config['_name_or_path'] = self._name_or_path |
| language_model_type = language_model_config.get('model_type', '') |
| is_remote_code = '.' in language_model_config.get('auto_map', {}).get('AutoConfig', '') |
| if language_model_type in CONFIG_MAPPING and not is_remote_code: |
| language_model_config = AutoConfig.for_model(**language_model_config) |
| elif language_model_type: |
| Config = get_class_from_dynamic_module(language_model_config["auto_map"]["AutoConfig"], |
| language_model_config['_name_or_path']) |
| language_model_config = Config(**language_model_config) |
| self.language_model_config = language_model_config |
|
|
| if isinstance(vision_model_config, dict): |
| if '_name_or_path' not in vision_model_config: |
| vision_model_config['_name_or_path'] = self._name_or_path |
| vision_model_type = vision_model_config.get('model_type', '') |
| is_remote_code = '.' in vision_model_config.get('auto_map', {}).get('AutoConfig', '') |
| if vision_model_type in CONFIG_MAPPING and not is_remote_code: |
| vision_model_config = AutoConfig.for_model(**vision_model_config) |
| elif vision_model_type: |
| Config = get_class_from_dynamic_module(vision_model_config["auto_map"]["AutoConfig"], |
| vision_model_config['_name_or_path']) |
| vision_model_config = Config(**vision_model_config) |
| self.vision_model_config = vision_model_config |
|
|
| self.vision_abstractor_config = vision_abstractor_config |
|
|
| self.image_token_id = image_token_id |
|
|
| @property |
| def hidden_size(self): |
| return self.language_model_config.hidden_size |
|
|
| def to_dict(self): |
| ret_dict = super().to_dict() |
| ret_dict["auto_map"] = { |
| "AutoConfig": "configuration_dmllm.DMLLMConfig", |
| "AutoModel": "modeling_dmllm.DMLLM", |
| "AutoModelForCausalLM": "modeling_dmllm.DMLLM" |
| } |
| return ret_dict |
|
|
| @classmethod |
| def from_dict(cls, config_dict, **kwargs): |
| if 'name_or_path' in kwargs: |
| config_dict['_name_or_path'] = kwargs.pop('name_or_path') |
| return super().from_dict(config_dict, **kwargs) |
|
|
