deepspeedai / deepspeedai/DeepSpeed

LAMB requires dynamic loss scaling

Open
#4,417 7 comments 0 reactions 1 assignee View on GitHub

@loadams is already working on this.

Since Sep 28, 2023.

  • #4451 by @loadams — open
bug
Dominant language
Python
Stars
43.1k
Forks
5k
Avg merge
4d 15h
Merged PRs (30d)
112

Description

Is your feature request related to a problem? Please describe.
LAMB optimizer does not support BF16 training.
When I used the LAMB optimizer with BF16 training, I met the error

DeepSpeed LAMB optimizer requires dynamic loss scaling.

Contributor guide

Open the contributing guide

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.

Assessment

This issue has not been assessed yet.

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.