NVIDIA / NVIDIA/apex

ImportError: cannot import name 'FP16_Optimizer'

Open
#593 3 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Dominant language
Python
Stars
9k
Forks
1.5k
Avg merge
2d 4h
Merged PRs (30d)
3

Description

I have the some problem when import apex on colab.
the wdir is apex, I execute the code to install apex
!git clone https://github.com/NVIDIA/apex.git
%cd apex
!pip install -v --no-cache-dir --global-option="--cpp_ext" --global-option="--cuda_ext"

But it seems that it fails to find the path of fp16_optimizer and FusedAdam at optimizer folder
ImportError: cannot import name 'FP16_Optimizer'
ImportError: Please install apex from https://www.github.com/nvidia/apex

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the Colab installation using the commands in the issue, then inspect the optimizer folder and the availability of fp16_optimizer and FusedAdam. Done means the cause of the missing FP16_Optimizer import is identified and a verified resolution is recorded.

Written by the indexing model from the issue text.

Assessment

Tech stack
python, pytorch
Domain
machine-learning
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.