Skip to content

Conversation

njhill
Copy link
Member

@njhill njhill commented Jul 10, 2025

@njhill njhill added the documentation Improvements or additions to documentation label Jul 10, 2025
Copy link

👋 Hi! Thank you for contributing to the vLLM project.

💬 Join our developer Slack at https://slack.vllm.ai to discuss your PR in #pr-reviews, coordinate on features in #feat- channels, or join special interest groups in #sig- channels.

Just a reminder: PRs would not trigger full CI run by default. Instead, it would only run fastcheck CI which starts running only a small and essential subset of CI tests to quickly catch errors. You can run other CI tests on top of those by going to your fastcheck build on Buildkite UI (linked in the PR checks section) and unblock them. If you do not have permission to unblock, ping simon-mo or khluu to add you in our Buildkite org.

Once the PR is approved and ready to go, your PR reviewer(s) can run CI to test the changes comprehensively before merging.

To run CI, PR reviewers can either: Add ready label to the PR or enable auto-merge.

🚀

Copy link
Contributor

@gemini-code-assist gemini-code-assist bot left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Summary of Changes

Hello @njhill, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request significantly enhances vLLM's documentation by introducing a dedicated guide for Data Parallel deployment. This new content covers the setup and considerations for deploying models, particularly Mixture of Experts (MoE) models, using data parallelism, and integrates these updates into the project's existing documentation structure.

Highlights

  • New Documentation: A comprehensive guide for Data Parallel deployment in vLLM has been added, detailing its use with dense and MoE models, including internal and external load balancing strategies.
  • README Updates: The main README.md and docs/README.md files have been updated to reflect support for data and expert parallelism.
  • Distributed Serving Guide Integration: The docs/serving/distributed_serving.md file now includes a new section specifically for MoE models, linking to the new Data Parallel deployment documentation.
Using Gemini Code Assist

The full guide for Gemini Code Assist can be found on our documentation page, here are some quick tips.

Invoking Gemini

You can request assistance from Gemini at any point in your pull request via creating an issue comment (i.e. comment on the pull request page) using either /gemini <command> or @gemini-code-assist <command>. Below is a summary of the supported commands.

Feature Command Description
Code Review /gemini review Performs a code review for the current pull request in its current state.
Pull Request Summary /gemini summary Provides a summary of the current pull request in its current state.
Comment @gemini-code-assist Responds in comments when explicitly tagged, both in issue comments and review comments.
Help /gemini help Displays a list of available commands.

Customization

To customize Gemini Code Assist for GitHub experience, repository maintainers can create a configuration file and/or provide a custom code review style guide (such as PEP-8 for Python) by creating and adding files to a .gemini/ folder in the base of the repository. Detailed instructions can be found here.

Limitations & Feedback

Gemini Code Assist is currently in preview and may make mistakes. Please leave feedback on any instances where its feedback is incorrect or counter productive. You can react with 👍 and 👎 on @gemini-code-assist comments to provide feedback.

You can also get AI-powered code generation, chat, as well as code reviews directly in the IDE at no cost with the Gemini Code Assist IDE Extension.

Footnotes

  1. Review the Privacy Notices, Generative AI Prohibited Use Policy, Terms of Service, and learn how to configure Gemini Code Assist in GitHub here. Gemini can make mistakes, so double check it and use code with caution.

Copy link
Contributor

@gemini-code-assist gemini-code-assist bot left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Code Review

This pull request introduces documentation for Data Parallel deployment. The documentation covers internal and external load-balancing scenarios with examples. The review focuses on improving the clarity and accuracy of technical descriptions, correcting a statement about Expert Parallelism, and fixing terminology inconsistencies.

@njhill njhill marked this pull request as ready for review July 10, 2025 17:06
@njhill njhill requested a review from hmellor as a code owner July 10, 2025 17:06
Copy link
Member

@hmellor hmellor left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

LGTM, just a nit about the images

Copy link
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Could we save versions of these images with no grid?

Copy link
Member Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I agree this would be good! I will try to do it but not sure I will get a chance since I will be out next week and have a lot to get done before I leave.

So we could always merge this and I can improve the images as a follow-on when I'm back.

Copy link
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Yeah let's get it in and polish the diagrams after

@vllm-bot vllm-bot merged commit 9907fc4 into vllm-project:main Jul 11, 2025
14 checks passed
@njhill njhill deleted the dp-docs branch July 11, 2025 16:42
x22x22 pushed a commit to x22x22/vllm that referenced this pull request Aug 5, 2025
Pradyun92 pushed a commit to Pradyun92/vllm that referenced this pull request Aug 6, 2025
npanpaliya pushed a commit to odh-on-pz/vllm-upstream that referenced this pull request Aug 6, 2025
jinzhen-lin pushed a commit to jinzhen-lin/vllm that referenced this pull request Aug 9, 2025
paulpak58 pushed a commit to paulpak58/vllm that referenced this pull request Aug 13, 2025
diegocastanibm pushed a commit to diegocastanibm/vllm that referenced this pull request Aug 15, 2025
epwalsh pushed a commit to epwalsh/vllm that referenced this pull request Aug 27, 2025
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
documentation Improvements or additions to documentation
Projects
None yet
Development

Successfully merging this pull request may close these issues.

4 participants