gp.py在cpu下出错

[quant2008]

我设置了device使用cpu，运行gp.py出现如下错误，请问怎么解决?谢谢！ [17036:MainThread](2023-11-15 22:18:57,732) INFO - qlib.Initialization - [init.py:74] - qlib successfully initialized based on client settings. [17036:MainThread](2023-11-15 22:18:57,733) INFO - qlib.Initialization - [init.py:76] - data_path={'__DEFAULT_FREQ': WindowsPath('G:/qlibtutor/qlib_data/rq_cn_data_h5')} [30284:MainThread](2023-11-15 22:18:57,759) ERROR - qlib.workflow - [utils.py:41] - An exception has been raised[RuntimeError: An attempt has been made to start a new process before the current process has finished its bootstrapping phase.

    This probably means that you are not using fork to start your
    child processes and you have forgotten to use the proper idiom
    in the main module:

        if __name__ == '__main__':
            freeze_support()
            ...

    The "freeze_support()" line can be omitted if the program
    is not going to be frozen to produce an executable.].

File "", line 1, in File "E:\anaconda3\envs\qlib230908\lib\multiprocessing\spawn.py", line 116, in spawn_main exitcode = _main(fd, parent_sentinel) File "E:\anaconda3\envs\qlib230908\lib\multiprocessing\spawn.py", line 125, in _main prepare(preparation_data) File "E:\anaconda3\envs\qlib230908\lib\multiprocessing\spawn.py", line 236, in prepare _fixup_main_from_path(data['init_main_from_path']) File "E:\anaconda3\envs\qlib230908\lib\multiprocessing\spawn.py", line 287, in _fixup_main_from_path main_content = runpy.run_path(main_path, File "E:\anaconda3\envs\qlib230908\lib\runpy.py", line 265, in run_path return _run_module_code(code, init_globals, run_name, File "E:\anaconda3\envs\qlib230908\lib\runpy.py", line 97, in _run_module_code _run_code(code, mod_globals, init_globals, File "E:\anaconda3\envs\qlib230908\lib\runpy.py", line 87, in _run_code exec(code, run_globals) File "e:\myquant\alphagen-master\gp_qtb.py", line 29, in data_train = StockData(instruments, '2009-01-01', '2018-12-31', device=device) File "e:\myquant\alphagen-master\alphagen_qlib\stock_data.py", line 37, in init self.data, self._dates, self._stock_ids = self._get_data() File "e:\myquant\alphagen-master\alphagen_qlib\stock_data.py", line 67, in _get_data df = self._load_exprs(features) File "e:\myquant\alphagen-master\alphagen_qlib\stock_data.py", line 62, in _load_exprs return (QlibDataLoader(config=exprs) # type: ignore File "E:\anaconda3\envs\qlib230908\lib\site-packages\qlib\data\dataset\loader.py", line 143, in load df = self.load_group_df(instruments, exprs, names, start_time, end_time) File "E:\anaconda3\envs\qlib230908\lib\site-packages\qlib\data\dataset\loader.py", line 217, in load_group_df df = D.features(instruments, exprs, start_time, end_time, freq=freq, inst_processors=inst_processors) File "E:\anaconda3\envs\qlib230908\lib\site-packages\qlib\data\data.py", line 1191, in features return DatasetD.dataset(instruments, fields, start_time, end_time, freq, inst_processors=inst_processors) File "E:\anaconda3\envs\qlib230908\lib\site-packages\qlib\data\data.py", line 924, in dataset data = self.dataset_processor( File "E:\anaconda3\envs\qlib230908\lib\site-packages\qlib\data\data.py", line 578, in dataset_processor ParallelExt(n_jobs=workers, backend=C.joblib_backend, maxtasksperchild=C.maxtasksperchild)(task_l), File "E:\anaconda3\envs\qlib230908\lib\site-packages\joblib\parallel.py", line 1854, in call n_jobs = self._initialize_backend() File "E:\anaconda3\envs\qlib230908\lib\site-packages\joblib\parallel.py", line 1332, in _initialize_backend n_jobs = self._backend.configure(n_jobs=self.n_jobs, parallel=self, File "E:\anaconda3\envs\qlib230908\lib\site-packages\joblib_parallel_backends.py", line 526, in configure self._pool = MemmappingPool(n_jobs, **memmappingpool_args) [26132:MainThread](2023-11-15 22:18:57,769) ERROR - qlib.workflow - [utils.py:41] - An exception has been raised[RuntimeError: An attempt has been made to start a new process before the current process has finished its bootstrapping phase.

    This probably means that you are not using fork to start your
    child processes and you have forgotten to use the proper idiom
    in the main module:

        if __name__ == '__main__':
            freeze_support()
            ...

    The "freeze_support()" line can be omitted if the program
    is not going to be frozen to produce an executable.].

File "E:\anaconda3\envs\qlib230908\lib\site-packages\joblib\pool.py", line 323, in init

[Malibu351]

你好我遇到了同样的问题，你看下这里 ，修改下代码的顺序就不会有这个问题了，但是问一下哪里有参数设置用cpu运行，我这边提示没cuda，还是没成功使用cpu