tracel-ai/burn

[burn-train] Hot Reloading

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#3,571 opened on Aug 18, 2025

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enhancementhelp wanted

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Description

Implement hot-reloading functionality in burn-train for faster prototyping.

Look into https://github.com/bevyengine/bevy/pull/19309/files for inspiration

Contributor guide

Research direction
Study the burn train training loop and model checkpointing. Review the referenced bevy PR for hot reloading patterns. Identify where state is stored and how to safely reload during training.
Tech stack
rust
Domain
backendmachine learning
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
RustGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60