Lightning-AI / Lightning-AI/litgpt

QLoRA for Multi-GPU Settings

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#449 4 comments 7 reactions 0 assignees View on GitHub

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enhancement fine-tuning
Dominant language
Python
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Description

Currently, we disabled Multi-GPU support for QLoRA because we didn't test it, yet. Might be worthwhile looking into this some time, so this issue is just to remember to revisit this.

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.

Research direction

Locate where QLoRA disables Multi-GPU support and review the existing Multi-GPU configuration and QLoRA paths. Determine a supported test setup for combining them, then verify that the configuration works reliably across multiple GPUs and document the result.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
distributed-systems, machine-learning
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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