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Adding kueue support for GKE A4X-Max#5389

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vikramvs-gg wants to merge 1 commit intoGoogleCloudPlatform:developfrom
vikramvs-gg:a4xmax-kueue
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Adding kueue support for GKE A4X-Max#5389
vikramvs-gg wants to merge 1 commit intoGoogleCloudPlatform:developfrom
vikramvs-gg:a4xmax-kueue

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@vikramvs-gg vikramvs-gg commented Mar 24, 2026

Feat: Adding kueue support for GKE A4X-Max

This PR adds kueue support for GKE A4X-Max. A kueue configuration manifest is added along with defined topologies of block, subblock and host levels. Kueue version is 0.14.4. Corresponding annotation of subblock topology is used in the NCCL jobset.
This PR also upgrades the asapd-lite container image version from 0.0.3 to 0.0.7 because the older version did not recognize the newer firmware installed on A4X-Max bare metal nodes.
We are also removing the additional_networks from gke-cluster in blueprint, keeping it on the node-pool. Machine type a4x-maxgpu-4g-metal is not supported when multi-networking is enabled on the cluster.

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gemini-code-assist bot commented Mar 24, 2026

Summary of Changes

Hello, 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 enhances the GKE A4X-Max bare metal example by integrating Kueue for advanced job scheduling and resource management, ensuring optimal utilization of GPU resources. It also addresses a critical compatibility issue by updating the asapd-lite image to support newer firmware and refactors network configurations to resolve conflicts with specific machine types.

Highlights

  • Kueue Integration: Added Kueue support for GKE A4X-Max, including a new configuration manifest that defines block, subblock, and host topologies. The Kueue version is set to 0.14.4.
  • Image Upgrade: Upgraded the asapd-lite container image from v0.0.3 to v0.0.7 to ensure compatibility with newer firmware on A4X-Max bare metal nodes.
  • Network Configuration Adjustment: Removed additional_networks from the GKE cluster blueprint and moved it to the node-pool level, addressing an incompatibility where the a4x-maxgpu-4g-metal machine type does not support multi-networking when enabled at the cluster level.
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Code Review

This pull request introduces Kueue support for the GKE A4X-Max example, which is a valuable addition. The changes include adding the necessary Kueue configuration, updating the example blueprint to install and configure Kueue, and modifying the NCCL jobset example to use it. The upgrade of the asapd-lite image and the adjustment to the additional_networks configuration are also well-justified.

My review has identified one critical issue where the specified Kueue version is not yet supported by the kubectl-apply module, which will cause deployment failures. Please see the specific comment for details on how to resolve this.

@vikramvs-gg vikramvs-gg marked this pull request as ready for review March 26, 2026 08:47
@vikramvs-gg vikramvs-gg requested review from a team and samskillman as code owners March 26, 2026 08:47
@vikramvs-gg vikramvs-gg added enhancement New feature or request release-key-new-features Added to release notes under the "Key New Features" heading. labels Mar 26, 2026
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enhancement New feature or request release-key-new-features Added to release notes under the "Key New Features" heading.

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