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:
Aug. 25, 2009
Filed:
Nov. 20, 2003
Robert James Blainey, Newmarket, CA;
Guansong Zhang, Toronto, CA;
Robert James Blainey, Newmarket, CA;
Guansong Zhang, Toronto, CA;
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention provides an approach for barrier synchronization. The barrier has a first array of elements with each element of the first array having an associated process, and a second array of elements with each element of the second array having an associated process. Prior to use, the values or states of the elements in each array may be initialized. As each process finishes its phase and arrives at the barrier, it may update the value or state of its associated element in the first array. Each process may then proceed to spin at its associated element in the second array, waiting for that element to switch. When the values or states of the elements of the first array reach a predetermined value or state, an instruction is sent to all of the elements in the second array to switch their values or states, allowing all processes to leave.