Simple NLP Example not working

Hi,
I’m looking for an example to learn how to use TPUs on Colab running PyTorch.
I’m glad to find the Simple NLP Example which is unfortunately not working.
Running w/o modifications leads to following error message running the last cell:

from accelerate import notebook_launcher

notebook_launcher(training_function)

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

ImportError                               Traceback (most recent call last)

<ipython-input-50-a91f3c0bb4fd> in <module>()
      1 from accelerate import notebook_launcher
      2 
----> 3 notebook_launcher(training_function)

1 frames

/usr/local/lib/python3.7/dist-packages/torch_xla/__init__.py in <module>()
     99 from ._patched_functions import _apply_patches
    100 from .version import __version__
--> 101 import _XLAC
    102 
    103 

ImportError: /usr/local/lib/python3.7/dist-packages/_XLAC.cpython-37m-x86_64-linux-gnu.so: undefined symbol: _ZNK3c1010TensorImpl20is_contiguous_customENS_12MemoryFormatE


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

I found a workaround description here which says:

... downgrading PyTorch to torch-1.8.2+cpu,
but that leads to another error message

ProcessExitedException: process 0 terminated with signal SIGSEGV

What is necessary to run that example?
Do you know any other example that meets my requirements (Colab, TPUs, PyTorch) and runs?

Thanks for any comment

I’m guessing this is due to a version mismatch between PyTorch XLA and PyTorch (PyTorch XLA is installed with a version for PyTorch 1.9 and Colab now uses PyTorch 1,10). I’ve asked for an updated link to install the proper version of PyTorch XLA, but in the meantime, you cna solve the issue by downgrading PyTorch to 1.9.1 in the Colab you are running.

On request of the pytorch version I get “1.9.0+cu102”
What exactly am I supposed to do?

Ah you’re right, I was confused. It’s working now with no change. Perhaps there was some maintenance isse?

Great, thanks