C:\Anaconda3\lib\site-packages\torch\cuda\nccl.py:24: UserWarning: PyTorch is not compiled with NCCL support
warnings.warn('PyTorch is not compiled with NCCL support')
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
<ipython-input-1-fdbbe4fefe36> in <module>()
1 import torch
2 print(torch.cuda.nccl.is_available(torch.randn(1).cuda()))
----> 3 print(torch.cuda.nccl.version())
C:\Anaconda3\lib\site-packages\torch\cuda\nccl.py in version()
29
30 def version():
---> 31 return torch._C._nccl_version()
32
33
AttributeError: module 'torch._C' has no attribute '_nccl_version'```
Installed pytorch using conda method, from the main site Windows -> conda -> 3.6 -> cuda 8.0
Edited: Just read the replies from peterjc and OP, it makes sense now.