Multiprocessor system with multiple concurrent modes of execution
US8621478B2 · kind B2 · utility
3Cited by
14References
17Claims
0Family size
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Key dates
| Filing date | Jan 18, 2011 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Oct 17, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/084
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A multiprocessor system supports multiple concurrent modes of speculative execution. Speculation identification numbers (IDs) are allocated to speculative threads from a pool of available numbers. The pool is divided into domains, with each domain being assigned to a mode of speculation. Modes of speculation include TM, TLS, and rollback. Allocation of the IDs is carried out with respect to a central state table and using hardware pointers. The IDs are used for writing different versions of speculative results in different ways of a set in a cache memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.