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:
Oct. 26, 2010
Filed:
Mar. 13, 2007
Brian W. O'krafka, Austin, TX (US);
Roy S. Moore, Austin, TX (US);
Pranay Koka, Austin, TX (US);
Robert J. Kroeger, Palo Alto, CA (US);
Brian W. O'Krafka, Austin, TX (US);
Roy S. Moore, Austin, TX (US);
Pranay Koka, Austin, TX (US);
Robert J. Kroeger, Palo Alto, CA (US);
Oracle America, Inc., Redwood City, CA (US);
Abstract
A method and system for detecting race conditions computing systems. A parallel computing system includes multiple processor cores is coupled to memory. An application with a code sequence in which parallelism to be exploited is executed on this system. Different processor cores may operate on a given memory line concurrently. Extra bits are associated with the memory data line and are used to indicate changes to corresponding subsections of data in the memory line. A memory controller may perform a comparison between check bits of a memory line to determine if more than one processor core modified the same section of data in a cache line and a race condition has occurred.