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:
Sep. 27, 2011
Filed:
Dec. 12, 2001
Anders Widell, Huddinge, SE;
Per Holmberg, Stockholm, SE;
Marcus Dahlström, Säter, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
The present invention relates to mechanisms for handling and detecting collisions between threads () that execute computer program instructions out of program order. According to an embodiment of the present invention each of a plurality of threads () are associated with a respective data structure () comprising a number of bits () that correspond to memory elements (m, m, m, m) of a shared memory (). When a thread accesses a memory element in the shared memory, it sets a bit in its associated data structure, which bit corresponds to the accessed memory element. This indicates that the memory element has been accessed by the thread. Collision detection may be carried out after the thread has finished executing by means of comparing the data structure of the thread with the data structures of other threads on which the thread may depend.