unable to install apex

[wgx8130]

Does the apex in the INSTALL.md have any function?

I have tried many different methods to install the content of "pip install -v --disable-pip-version-check --no-cache-dir --global-option="--cpp_ext" --global-option="--cuda_ext" ./", but they are all not working.

The error is "no module named 'packaging'" error: subprocess-exited-with-error

Without this apex, it seems to be also able to fine-tune the model. Could anyone help me explain the function of apex, or help me install it?

Thanks very very much for any help!

[akhilkedia]

This issue with apex has been reported here NVIDIA/apex#1679

huggingface/transformers#24351 suggests pinning apex to a specific commit, cd apex && git checkout 82ee367f3da74b4cd62a1fb47aa9806f0f47b58b, after which I can successfully install apex.

However, the current version of apex is incompatible with the version of torch used here, and I get this error NVIDIA/apex#1532.

I am currently trying version 22.04-dev (cd apex && git checkout 22.04-dev) of apex as mentioned in the previous link. With this, apex compiles successfully and python ./main_finetune.py -h also runs successfully, but I cannot say if this version of apex will result in issues down the line.

If the authors can tell us the exact HEAD commit of apex version that they used, we can use that version!

[wawaa]

You don't need to install Apex if you not use amp.