Reducing probe filter accesses for processing in memory requests
US12332795B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2022 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Apr 15, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/621
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems, apparatuses, and methods for reducing probe filter accesses in response to processing-in-memory (PIM) requests are disclosed. A coherent secondary unit receives PIM requests targeting a corresponding PIM device. For each PIM request that is received, the coherent secondary unit performs a lookup of a PIM address table (PAT). If the address of the PIM request matches an address of an existing entry in the PAT, the coherent secondary unit prevents the PIM request from being sent to a probe filter. Otherwise, if there is no match for the address of the PIM request in the entries of the PAT, the coherent secondary unit sends the PIM request to the probe filter, and the coherent secondary unit creates a new PAT entry for the address of the PIM request. Any subsequent PIM requests to the same address will match with the new entry in the PAT.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.