model_name = "LLaMA" cmd_to_install = "`pip install -r request_llm/requirements_chatglm.txt`" from transformers import AutoModelForCausalLM, AutoTokenizer, TextIteratorStreamer from toolbox import update_ui, get_conf, ProxyNetworkActivate from multiprocessing import Process, Pipe from .local_llm_class import LocalLLMHandle, get_local_llm_predict_fns, SingletonLocalLLM from threading import Thread # ------------------------------------------------------------------------------------------------------------------------ # πŸ”ŒπŸ’» Local Model # ------------------------------------------------------------------------------------------------------------------------ @SingletonLocalLLM class GetONNXGLMHandle(LocalLLMHandle): def load_model_info(self): # πŸƒβ€β™‚οΈπŸƒβ€β™‚οΈπŸƒβ€β™‚οΈ ε­θΏ›η¨‹ζ‰§θ‘Œ self.model_name = model_name self.cmd_to_install = cmd_to_install def load_model_and_tokenizer(self): # πŸƒβ€β™‚οΈπŸƒβ€β™‚οΈπŸƒβ€β™‚οΈ ε­θΏ›η¨‹ζ‰§θ‘Œ import os, glob import os import platform huggingface_token, device = get_conf('HUGGINGFACE_ACCESS_TOKEN', 'LOCAL_MODEL_DEVICE') assert len(huggingface_token) != 0, "ζ²‘ζœ‰ε‘«ε†™ HUGGINGFACE_ACCESS_TOKEN" with open(os.path.expanduser('~/.cache/huggingface/token'), 'w') as f: f.write(huggingface_token) model_id = 'meta-llama/Llama-2-7b-chat-hf' with ProxyNetworkActivate('Download_LLM'): self._tokenizer = AutoTokenizer.from_pretrained(model_id, use_auth_token=huggingface_token) # use fp16 model = AutoModelForCausalLM.from_pretrained(model_id, use_auth_token=huggingface_token).eval() if device.startswith('cuda'): model = model.half().to(device) self._model = model return self._model, self._tokenizer def llm_stream_generator(self, **kwargs): # πŸƒβ€β™‚οΈπŸƒβ€β™‚οΈπŸƒβ€β™‚οΈ ε­θΏ›η¨‹ζ‰§θ‘Œ def adaptor(kwargs): query = kwargs['query'] max_length = kwargs['max_length'] top_p = kwargs['top_p'] temperature = kwargs['temperature'] history = kwargs['history'] console_slience = kwargs.get('console_slience', True) return query, max_length, top_p, temperature, history, console_slience def convert_messages_to_prompt(query, history): prompt = "" for a, b in history: prompt += f"\n[INST]{a}[/INST]" prompt += "\n{b}" + b prompt += f"\n[INST]{query}[/INST]" return prompt query, max_length, top_p, temperature, history, console_slience = adaptor(kwargs) prompt = convert_messages_to_prompt(query, history) # =-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=- # code from transformers.llama streamer = TextIteratorStreamer(self._tokenizer) # Run the generation in a separate thread, so that we can fetch the generated text in a non-blocking way. inputs = self._tokenizer([prompt], return_tensors="pt") prompt_tk_back = self._tokenizer.batch_decode(inputs['input_ids'])[0] generation_kwargs = dict(inputs.to(self._model.device), streamer=streamer, max_new_tokens=max_length) thread = Thread(target=self._model.generate, kwargs=generation_kwargs) thread.start() generated_text = "" for new_text in streamer: generated_text += new_text if not console_slience: print(new_text, end='') yield generated_text.lstrip(prompt_tk_back).rstrip("") if not console_slience: print() # =-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=- def try_to_import_special_deps(self, **kwargs): # import something that will raise error if the user does not install requirement_*.txt # πŸƒβ€β™‚οΈπŸƒβ€β™‚οΈπŸƒβ€β™‚οΈ δΈ»θΏ›η¨‹ζ‰§θ‘Œ import importlib importlib.import_module('transformers') # ------------------------------------------------------------------------------------------------------------------------ # πŸ”ŒπŸ’» GPT-Academic Interface # ------------------------------------------------------------------------------------------------------------------------ predict_no_ui_long_connection, predict = get_local_llm_predict_fns(GetONNXGLMHandle, model_name)