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Google patents system that moves data ownership between server clusters

Patent drawing
Patent drawing from the official filing.

Google describes a method for large computer systems where multiple groups of processors share memory. The system allows the responsibility for keeping the correct version of a piece of data to move from one group of processors to another as needed.

Why it mattersThis improves how powerful servers manage shared information, which is useful for data centers but not something most people interact with directly.

In the filing’s own words

A system for dynamically controlling point-of-coherency or a point-of-serialization of shared data includes a plurality of processing engines grouped into a plurality of separate clusters and a shared communications path communicatively connecting each of the plurality of clusters to one another. Each respective cluster includes memory shared by the processing engines of the respective cluster, each unit of data in the memory being assigned to a single owner cluster responsible for maintaining an authoritative copy and a single manager cluster permanently responsible for assigning the owner cluster responsibility. Each respective cluster also includes a controller configured to receive data requests, track each of a manager status and an ownership status of the respective cluster, and control ownership status changes with respect to respective units of data based at least in part on the tracked ownership and manager statuses of the respective cluster.

What exactly they claim (claim 1)

1. A multi-processing system comprising: a plurality of separate clusters, each respective cluster including a respective plurality of processing engines and a respective memory shared by the processing engines of the respective cluster; and a controller configured to track which cluster of a plurality of separate clusters is assigned to maintain an authoritative copy of each respective unit of data uploaded to the multi-processing system, wherein for each unit of data, a designation of which cluster is assigned to maintain the authoritative copy of the unit of data is updatable.

Facts

Company
Google (Google LLC)
Official title
Dynamic Migration of Point-of-Coherency and Point-of-Serialization in NUMA Coherent Interconnects
Publication number
US20260329770A1
Application number
19719787
Filed
Jun 25, 2026
Published
Oct 22, 2026
Inventors
2
Claims
19

Classified under

G06F 12/0811 Physics & computingG06F 12/084 Physics & computingG06F 2212/2542 Physics & computing
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.