Starting Qwen3.5-2B Metamath training Output: /data/pretrained_models/Qwen3.5-2B-metamath Effective batch size: 16 /data/home/lg/.conda/envs/verl_qwen35/lib/python3.12/site-packages/torch/cuda/__init__.py:63: FutureWarning: The pynvml package is deprecated. Please install nvidia-ml-py instead. If you did not install pynvml directly, please report this to the maintainers of the package that installed pynvml for you. import pynvml # type: ignore[import] `torch_dtype` is deprecated! Use `dtype` instead! Loading weights: 0%| | 0/320 [00:00 Traceback (most recent call last): File "/home/lg/.local/lib/python3.12/site-packages/multiprocess/resource_tracker.py", line 80, in __del__ File "/home/lg/.local/lib/python3.12/site-packages/multiprocess/resource_tracker.py", line 89, in _stop File "/home/lg/.local/lib/python3.12/site-packages/multiprocess/resource_tracker.py", line 102, in _stop_locked AttributeError: '_thread.RLock' object has no attribute '_recursion_count'