Patent · US Active

Executing an atomic primitive in a multi-core processor system

US11321146B2 · kind B2 · utility

0Cited by

8References

20Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Ralf Winkelmann · Eppelheim, DE
Michael Fee · Cold Spring, US
Matthias Klein · Poughkeepsie, US
Carsten Otte · Stuttgart, DE
Edward W. Chencinski · Poughkeepsie, US
Hanno Eichelberger · Stuttgart, DE

Key dates

Filing date	May 9, 2019
Grant date	May 3, 2022
Priority date	—
Expiry date	Feb 5, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG06F2212/1024
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

The present disclosure relates to a method for a computer system comprising a plurality of processor cores, including a first processor core and a second processor core, wherein a cached data item is assigned to a first processor core, of the plurality of processor cores, for exclusively executing an atomic primitive. The method includes receiving, from a second processor core at a cache controller, a request for accessing the data item, and in response to determining that the execution of the atomic primitive is not completed by the first processor core, returning a rejection message to the second processor core.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.