如何在DGL中修复'ImportError: /home/ ... /lib/libtorch.so.1: undefined symbol: nvrtcGetProgramLogSize‘？

Question

我在dgl (DeepMind的深度图形库)中导入pytorch时出错，具体地说：

符号: /home/user/anaconda3/envs/my_env/lib/python3.7/site-packages/torch/lib/libtorch.so.1:未定义符号: ImportError: nvrtcGetProgramLogSize

我尝试重新安装pytorch (使用conda un/install卸载、重新安装)。我也在谷歌上搜索，我找到了这个https://github.com/pytorch/pytorch/issues/14973。在那里，他们在libnvrtc.so和libcuda.so中解决了这个问题，但我不知道这是什么意思。有人知道吗？

这是基本的代码：

import dgl
from parseador import train_df

g = dgl.DGLGraph()
g.add_nodes(5)
g.add_edges([0, 0, 0, 0], [1, 2, 3, 4])
g.ndata['h'] = th.randn(5, 3)
g.edata['h'] = th.randn(4, 4)

这就是错误：

Traceback (most recent call last):
  File "/home/user/Documentos/Repo/grafos.py", line 1, in <module>
    import dgl
  File "/home/user/anaconda3/envs/my_env/lib/python3.7/site-packages/dgl/__init__.py", line 2, in <module>
    from . import function
  File "/home/user/anaconda3/envs/my_env/lib/python3.7/site-packages/dgl/function/__init__.py", line 5, in <module>
    from .message import *
  File "/home/user/anaconda3/envs/my_env/lib/python3.7/site-packages/dgl/function/message.py", line 7, in <module>
    from .. import backend as F
  File "/home/user/anaconda3/envs/my_env/lib/python3.7/site-packages/dgl/backend/__init__.py", line 46, in <module>
    load_backend(os.environ.get('DGLBACKEND', 'pytorch').lower())
  File "/home/user/anaconda3/envs/my_env/lib/python3.7/site-packages/dgl/backend/__init__.py", line 18, in load_backend
    mod = importlib.import_module('.%s' % mod_name, __name__)
  File "/home/user/anaconda3/envs/my_env/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "/home/user/anaconda3/envs/my_env/lib/python3.7/site-packages/dgl/backend/pytorch/__init__.py", line 1, in <module>
    from .tensor import *
  File "/home/user/anaconda3/envs/my_env/lib/python3.7/site-packages/dgl/backend/pytorch/tensor.py", line 5, in <module>
    import torch as th
  File "/home/user/anaconda3/envs/my_env/lib/python3.7/site-packages/torch/__init__.py", line 102, in <module>
    from torch._C import *
ImportError: /home/user/anaconda3/envs/my_env/lib/python3.7/site-packages/torch/lib/libtorch.so.1: undefined symbol: nvrtcGetProgramLogSize

如何修复此错误？不久前，我在Windows10中正确运行了这段代码，现在我运行的是Ubuntu 18.04。

Answer 1

我也遇到过这种情况，但我实际上想使用图形处理器，所以安装pytorch-cpu对我来说不是一个选择。

相反，从pytorch通道(而不是defaults)安装pytorch包为我解决了这个问题：conda install pytorch --channel pytorch

Answer 2

我刚刚用conda install pytorch-cpu修复了同样的异常

Answer 3

您应该在GPU计算机上运行您的代码，并确保您的pytorch是GPU