how to use torchaudio with torch xla on google colab tpu

问题

I'm trying to run a pytorch script which is using torchaudio on a google TPU. To do this I'm using pytorch xla following this notebook, more specifically I'm using this code cell to load the xla:

!pip install torchaudio
import os
assert os.environ['COLAB_TPU_ADDR'], 'Make sure to select TPU from Edit > Notebook settings > Hardware accelerator'

VERSION = "20200220"  #@param ["20200220","nightly", "xrt==1.15.0"]
!curl https://raw.githubusercontent.com/pytorch/xla/master/contrib/scripts/env-setup.py -o pytorch-xla-env-setup.py
!python pytorch-xla-env-setup.py --version $VERSION

import torch

import torchaudio

import torch_xla

however this is incompatible with the version of torchaudio that I need as: ERROR: torchaudio 0.4.0 has requirement torch==1.4.0, but you'll have torch 1.5.0a0+e95282a which is incompatible.

I couldn't find anywhere how to load torch 1.4.0 using pytorch xla.

I tried to use the nightly version of torch audio but that gives the error as follows:

!pip install torchaudio_nightly -f https://download.pytorch.org/whl/nightly/torch_nightly.html

import os
assert os.environ['COLAB_TPU_ADDR'], 'Make sure to select TPU from Edit > Notebook settings > Hardware accelerator'

VERSION = "20200220"  #@param ["20200220","nightly", "xrt==1.15.0"]
!curl https://raw.githubusercontent.com/pytorch/xla/master/contrib/scripts/env-setup.py -o pytorch-xla-env-setup.py
!python pytorch-xla-env-setup.py --version $VERSION

import torch
import torchaudio

import torch_xla

---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-2-968e9d93c06f> in <module>()
      9 
     10 import torch
---> 11 import torchaudio
     12 
     13 import torch_xla

/usr/local/lib/python3.6/dist-packages/torchaudio/__init__.py in <module>()
      3 
      4 import torch
----> 5 import _torch_sox
      6 
      7 from .version import __version__, git_version

ImportError: /usr/local/lib/python3.6/dist-packages/_torch_sox.cpython-36m-x86_64-linux-gnu.so: undefined symbol: _ZN6caffe26detail37_typeMetaDataInstance_preallocated_29E

---------------------------------------------------------------------------

So how would I go to load the stable version or 1.4.0 version of pytorch using xla or is there any other workaround for this situation?

Thanks a lot for your help!

回答1:

I tested using the notebook below; Getting Started with PyTorch on Cloud TPUs

After changing the cell containing;

FROM:

    VERSION = "20200325"  #@param ["1.5" , "20200325", "nightly"]
    !curl https://raw.githubusercontent.com/pytorch/xla/master/contrib/scripts/env-setup.py -o pytorch-xla-env-setup.py
    !python pytorch-xla-env-setup.py --version $VERSION

TO:

    VERSION = "20200325"  #@param ["1.5" , "20200325", "nightly"]
    !curl https://raw.githubusercontent.com/pytorch/xla/master/contrib/scripts/env-setup.py -o pytorch-xla-env-setup.py
    !pip install torchvision
    !pip install torch==1.4.0
    !pip install torchaudio==0.4.0
    %matplotlib inline
    !python pytorch-xla-env-setup.py --version $VERSION

All cells ran successfully, and the import statements below threw no errors;

    # imports pytorch
      import torch

    # imports the torch_xla package
      import torch_xla
      import torch_xla.core.xla_model as xm

来源：https://stackoverflow.com/questions/60718831/how-to-use-torchaudio-with-torch-xla-on-google-colab-tpu

标签

google-cloud-platform

pytorch

tpu