The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 2021
Filed:
Apr. 12, 2013
Commissariat a L'energie Atomique ET Aux Ene Alt, Paris, FR;
Bull Sas, Les Clayes-sous-Bois, FR;
Christian Bernard, Saint Etienne de Crossey, FR;
Eric Guthmuller, Ruy, FR;
Huy Nam Nguyen, Fresnes, FR;
COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris, FR;
BULL SAS, Les Clayes-sous-Bois, FR;
Abstract
A cache coherence management system includes: a set of directories distributed between nodes of a network for interconnecting processors including cache memories, each directory including a correspondence table between cache lines and information fields on the cache lines; and a mechanism updating the directories by adding, modifying, or deleting cache lines in the correspondence tables. In each correspondence table and for each cache line identified, at least one field is provided for indicating a possible blocking of a transaction relative to the cache line considered, when the blocking occurs in the node associated with the correspondence table considered. The system further includes a mechanism detecting fields indicating a transaction blocking and restarting each transaction detected as blocked from the node in which it is indicated as blocked.