Centralized distribution of multicast requests in a data processing system
US12056050B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2022 |
| Grant date | Aug 6, 2024 |
| Priority date | — |
| Expiry date | Jan 4, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/683
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processing system includes a master, a central request agent, and a plurality of snoopers communicatively coupled to a system fabric for communicating requests subject to retry. The master issues on the system fabric a multicast request intended for the plurality of snoopers. The central request agent receives the multicast request on the system fabric, assigns the multicast request to a particular state machine among a plurality of state machines in the central request agent, and provides the master a coherence response indicating successful completion of the multicast request. The central request agent repetitively issues on the system fabric a multicast request in association with a machine identifier identifying the particular state machine until a coherence response indicates the multicast request is successfully received by all of the plurality of snoopers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.