Chipset support for non-uniform memory access among heterogeneous processing units
US9015446B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2008 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | Jan 26, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/1081
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for providing a first processor access to a memory associated with a second processor. The method includes receiving a first address map from the first processor that includes an MMIO aperture for a NUMA device, receiving a second address map from a second processor that includes MMIO apertures for hardware devices that the second processor is configured to access, and generating a global address map by combining the first and second address maps. The method further includes receiving an access request transmitted from the first processor to the NUMA device, generating a memory access request based on the first access request and a translation table that maps a first address associated with the first access request into a second address associated with the memory associated with the second processor, and routing the memory access request to the memory based on the global address map.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.