Switch prefetch in a multicore computer chip
US7502913B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 16, 2006 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Dec 23, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0897
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for switch prefetch in multicore computer chips can allow a programmer to tailor operations of a computer program to available data. Control-flow decisions can be made by the program based on the availability of data in a cache. For example, a new instruction in a processor instruction set can receive a list comprising pairs of data addresses and code addresses. The processor can look for data items corresponding to the listed data addresses, and find the first available data item in the cache. When a cached data item is found, control is transferred to the code address supplied in the table. If no data is in the cache, then the processor can stall until the most quickly fetched data item is available.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.