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topazape / LSTM_Chem

Implementation of the paper - Generative Recurrent Networks for De Novo Drug Design.
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RuntimeError: dictionary changed size during iteration #6

Closed marz869 closed 4 years ago

marz869 commented 4 years ago

Hi Thanks for your great job. At the end of epoch 2 before saving model and last iteration I got this error: `Exception in thread Thread-2: Traceback (most recent call last): File "C:\Users\Radical\Anaconda3\envs\myenv\lib\threading.py", line 926, in _bootstrap_inner self.run() File "C:\Users\Radical\Anaconda3\envs\myenv\lib\threading.py", line 870, in run self._target(*self._args, **self._kwargs) File "C:\Users\Radical\Anaconda3\envs\myenv\lib\site-packages\tensorflow_core\python\keras\utils\data_utils.py", line 748, in _run with closing(self.executor_fn(_SHARED_SEQUENCES)) as executor: File "C:\Users\Radical\Anaconda3\envs\myenv\lib\site-packages\tensorflow_core\python\keras\utils\data_utils.py", line 727, in pool_fn initargs=(seqs, None, get_worker_id_queue())) File "C:\Users\Radical\Anaconda3\envs\myenv\lib\multiprocessing\context.py", line 119, in Pool context=self.get_context()) File "C:\Users\Radical\Anaconda3\envs\myenv\lib\multiprocessing\pool.py", line 176, in init self._repopulate_pool() File "C:\Users\Radical\Anaconda3\envs\myenv\lib\multiprocessing\pool.py", line 241, in _repopulate_pool w.start() File "C:\Users\Radical\Anaconda3\envs\myenv\lib\multiprocessing\process.py", line 112, in start self._popen = self._Popen(self) File "C:\Users\Radical\Anaconda3\envs\myenv\lib\multiprocessing\context.py", line 322, in _Popen return Popen(process_obj) File "C:\Users\Radical\Anaconda3\envs\myenv\lib\multiprocessing\popen_spawn_win32.py", line 89, in init reduction.dump(process_obj, to_child) File "C:\Users\Radical\Anaconda3\envs\myenv\lib\multiprocessing\reduction.py", line 60, in dump ForkingPickler(file, protocol).dump(obj) RuntimeError: dictionary changed size during iteration

Traceback (most recent call last): File "", line 1, in File "C:\Users\Radical\Anaconda3\envs\myenv\lib\multiprocessing\spawn.py", line 105, in spawn_main exitcode = _main(fd) File "C:\Users\Radical\Anaconda3\envs\myenv\lib\multiprocessing\spawn.py", line 115, in _main self = reduction.pickle.load(from_parent) EOFError: Ran out of input`

would you explain why it is happening or fixed it.. thank you.

topazape commented 4 years ago

Maybe that error is due to something in tensorflow 2.0.0, but I can't say for sure. I am currently rewriting the code for tensorflow 2.1.0, so please submit the issue if you are experiencing similar errors in newer versions. Thanks,

topazape commented 4 years ago

@marz869 Please try new version.