opennmt 找不到 GPU

问题描述

我可以看到pytorch可以找到GPU资源。

>>> torch.cuda.is_available()
True
>>> torch.cuda.current_device()
0
>>> torch.cuda.device(0)
<torch.cuda.device object at 0x7f8c0a3cec50>
>>> torch.cuda.device_count()
1
>>> torch.cuda.get_device_name(0)
'NVIDIA Tesla K80'
>>> torch.cuda.get_device_name(0)
'NVIDIA Tesla K80'

然而，opennmt 没有找到 GPU 资源。这里发生了什么？ 我正在使用来自 https://github.com/OpenNMT/OpenNMT-py/tree/1.2.0

的 opennmt

Traceback (most recent call last):
  File "../../opennmt-py/train.py",line 6,in <module>
    main()
  File "/root/work/context/huggingface-models/opennmt-py/onmt/bin/train.py",line 197,in main
    train(opt)
  File "/root/work/context/huggingface-models/opennmt-py/onmt/bin/train.py",line 91,in train
    p.join()
  File "/root/miniconda3/envs/open-nmt-env/lib/python3.7/multiprocessing/process.py",line 140,in join
    res = self._popen.wait(timeout)
  File "/root/miniconda3/envs/open-nmt-env/lib/python3.7/multiprocessing/popen_fork.py",line 48,in wait
    return self.poll(os.WNOHANG if timeout == 0.0 else 0)
  File "/root/miniconda3/envs/open-nmt-env/lib/python3.7/multiprocessing/popen_fork.py",line 28,in poll
    pid,sts = os.waitpid(self.pid,flag)
  File "/root/work/context/huggingface-models/opennmt-py/onmt/bin/train.py",line 181,in signal_handler
    raise Exception(msg)
Exception: 

-- Tracebacks above this line can probably
                 be ignored --

Traceback (most recent call last):
  File "/root/work/context/huggingface-models/opennmt-py/onmt/bin/train.py",line 135,in run
    gpu_rank = onmt.utils.distributed.multi_init(opt,device_id)
  File "/root/work/context/huggingface-models/opennmt-py/onmt/utils/distributed.py",line 27,in multi_init
    world_size=dist_world_size,rank=opt.gpu_ranks[device_id])
  File "/root/miniconda3/envs/open-nmt-env/lib/python3.7/site-packages/torch/distributed/distributed_c10d.py",line 510,in init_process_group
    timeout=timeout))
  File "/root/miniconda3/envs/open-nmt-env/lib/python3.7/site-packages/torch/distributed/distributed_c10d.py",line 603,in _new_process_group_helper
    timeout)
RuntimeError: ProcessGroupNccl is only supported with GPUs,no GPUs found!

解决方法

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