168 lines
6.9 KiB
Python
168 lines
6.9 KiB
Python
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from transformers import AutoModel, AutoTokenizer
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import time
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import threading
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import importlib
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from toolbox import update_ui, get_conf, ProxyNetworkActivate
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from multiprocessing import Process, Pipe
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load_message = "ChatGLM尚未加载，加载需要一段时间。注意，取决于`config.py`的配置，ChatGLM消耗大量的内存（CPU）或显存（GPU），也许会导致低配计算机卡死 ……"
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#################################################################################
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class GetGLMHandle(Process):
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def __init__(self):
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super().__init__(daemon=True)
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self.parent, self.child = Pipe()
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self.chatglm_model = None
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self.chatglm_tokenizer = None
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self.info = ""
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self.success = True
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self.check_dependency()
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self.start()
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self.threadLock = threading.Lock()
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def check_dependency(self):
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try:
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import sentencepiece
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self.info = "依赖检测通过"
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self.success = True
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except:
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self.info = "缺少ChatGLM的依赖，如果要使用ChatGLM，除了基础的pip依赖以外，您还需要运行`pip install -r request_llms/requirements_chatglm.txt`安装ChatGLM的依赖。"
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self.success = False
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def ready(self):
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return self.chatglm_model is not None
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def run(self):
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# 子进程执行
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# 第一次运行，加载参数
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retry = 0
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LOCAL_MODEL_QUANT, device = get_conf('LOCAL_MODEL_QUANT', 'LOCAL_MODEL_DEVICE')
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if LOCAL_MODEL_QUANT == "INT4": # INT4
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_model_name_ = "THUDM/chatglm2-6b-int4"
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elif LOCAL_MODEL_QUANT == "INT8": # INT8
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_model_name_ = "THUDM/chatglm2-6b-int8"
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else:
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_model_name_ = "THUDM/chatglm2-6b" # FP16
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while True:
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try:
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with ProxyNetworkActivate('Download_LLM'):
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if self.chatglm_model is None:
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self.chatglm_tokenizer = AutoTokenizer.from_pretrained(_model_name_, trust_remote_code=True)
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if device=='cpu':
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self.chatglm_model = AutoModel.from_pretrained(_model_name_, trust_remote_code=True).float()
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else:
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self.chatglm_model = AutoModel.from_pretrained(_model_name_, trust_remote_code=True).half().cuda()
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self.chatglm_model = self.chatglm_model.eval()
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break
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else:
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break
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except:
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retry += 1
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if retry > 3:
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self.child.send('[Local Message] Call ChatGLM fail 不能正常加载ChatGLM的参数。')
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raise RuntimeError("不能正常加载ChatGLM的参数！")
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while True:
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# 进入任务等待状态
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kwargs = self.child.recv()
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# 收到消息，开始请求
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try:
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for response, history in self.chatglm_model.stream_chat(self.chatglm_tokenizer, **kwargs):
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self.child.send(response)
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# # 中途接收可能的终止指令（如果有的话）
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# if self.child.poll():
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# command = self.child.recv()
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# if command == '[Terminate]': break
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except:
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from toolbox import trimmed_format_exc
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self.child.send('[Local Message] Call ChatGLM fail.' + '\n```\n' + trimmed_format_exc() + '\n```\n')
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# 请求处理结束，开始下一个循环
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self.child.send('[Finish]')
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def stream_chat(self, **kwargs):
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# 主进程执行
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self.threadLock.acquire()
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self.parent.send(kwargs)
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while True:
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res = self.parent.recv()
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if res != '[Finish]':
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yield res
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else:
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break
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self.threadLock.release()
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global glm_handle
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glm_handle = None
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#################################################################################
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def predict_no_ui_long_connection(inputs, llm_kwargs, history=[], sys_prompt="", observe_window=[], console_slience=False):
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"""
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多线程方法
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函数的说明请见 request_llms/bridge_all.py
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"""
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global glm_handle
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if glm_handle is None:
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glm_handle = GetGLMHandle()
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if len(observe_window) >= 1: observe_window[0] = load_message + "\n\n" + glm_handle.info
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if not glm_handle.success:
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error = glm_handle.info
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glm_handle = None
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raise RuntimeError(error)
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# chatglm 没有 sys_prompt 接口，因此把prompt加入 history
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history_feedin = []
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history_feedin.append(["What can I do?", sys_prompt])
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for i in range(len(history)//2):
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history_feedin.append([history[2*i], history[2*i+1]] )
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watch_dog_patience = 5 # 看门狗 (watchdog) 的耐心, 设置5秒即可
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response = ""
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for response in glm_handle.stream_chat(query=inputs, history=history_feedin, max_length=llm_kwargs['max_length'], top_p=llm_kwargs['top_p'], temperature=llm_kwargs['temperature']):
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if len(observe_window) >= 1: observe_window[0] = response
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if len(observe_window) >= 2:
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if (time.time()-observe_window[1]) > watch_dog_patience:
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raise RuntimeError("程序终止。")
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return response
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def predict(inputs, llm_kwargs, plugin_kwargs, chatbot, history=[], system_prompt='', stream = True, additional_fn=None):
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"""
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单线程方法
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函数的说明请见 request_llms/bridge_all.py
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"""
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chatbot.append((inputs, ""))
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global glm_handle
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if glm_handle is None:
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glm_handle = GetGLMHandle()
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chatbot[-1] = (inputs, load_message + "\n\n" + glm_handle.info)
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yield from update_ui(chatbot=chatbot, history=[])
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if not glm_handle.success:
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glm_handle = None
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return
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if additional_fn is not None:
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from core_functional import handle_core_functionality
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inputs, history = handle_core_functionality(additional_fn, inputs, history, chatbot)
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# 处理历史信息
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history_feedin = []
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history_feedin.append(["What can I do?", system_prompt] )
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for i in range(len(history)//2):
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history_feedin.append([history[2*i], history[2*i+1]] )
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# 开始接收chatglm的回复
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response = "[Local Message] 等待ChatGLM响应中 ..."
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for response in glm_handle.stream_chat(query=inputs, history=history_feedin, max_length=llm_kwargs['max_length'], top_p=llm_kwargs['top_p'], temperature=llm_kwargs['temperature']):
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chatbot[-1] = (inputs, response)
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yield from update_ui(chatbot=chatbot, history=history)
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# 总结输出
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if response == "[Local Message] 等待ChatGLM响应中 ...":
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response = "[Local Message] ChatGLM响应异常 ..."
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history.extend([inputs, response])
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yield from update_ui(chatbot=chatbot, history=history)
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