add blueprint for google ironwood tpu 4x4x4 rack #29
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This patch introduces a blueprint describing a rack system likely used by Google in their datacenters, based on available public domain information. The model represents the "Cube" unit of deployment featuring Google Ironwood TPUs. Key characteristics include: * A 4x4x4 3D Torus interconnect topology for the 64 NPUs. * Integration of 32 CPUs and 32 NICs connected via PCIe Gen5. * System-level rack description rather than granular tray-level details. Note: This model is an approximation derived from public sources and serves as an example representation of such infrastructure.
Author
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@ajbalogh When you have a moment, could you kindly review this PR or add the relevant reviewers? Thank you! |
Collaborator
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Hi @SriramVatala - thank you for your contribution! We are just back from the extended year-end holiday and looking into your PR. We will get back to you soon. Thank you! |
ajbalogh
requested changes
Jan 13, 2026
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ajbalogh
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@SriramVatala the device looks good.
Are there any supporting documentation links you used that could be added as comments?
The only thing missing would be to add this device to the devices test.
Author
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@ajbalogh @harsh-sikhwal I have incorporated the recent feedback. Kindly review at your convenience. |
ajbalogh
approved these changes
Jan 22, 2026
harsh-sikhwal
approved these changes
Jan 24, 2026
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This patch introduces a blueprint describing a rack system likely used by Google in their datacenters, based on available public domain information.
The model represents the "Cube" unit of deployment featuring Google Ironwood TPUs. Key characteristics include:
Note: This model is an approximation derived from public sources and serves as an example representation of such infrastructure.