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:
Nov. 10, 2009
Filed:
Jan. 31, 2007
Brett W. Coon, San Jose, CA (US);
John Erik Lindholm, Saratoga, CA (US);
Svetoslav D. Tzvetkov, Irvine, CA (US);
Brett W. Coon, San Jose, CA (US);
John Erik Lindholm, Saratoga, CA (US);
Svetoslav D. Tzvetkov, Irvine, CA (US);
NVIDIA Corporation, Santa Clara, CA (US);
Abstract
One embodiment of a computing system configured to manage divergent threads in a SIMD thread group includes a stack configured to store state information for processing control instructions. A parallel processing unit is configured to perform the steps of determining if one or more threads diverge during execution of a conditional control instruction. Threads that exit a program are identified as idle by a disable mask. Other threads that are disabled may be enabled once the divergent threads reach an instruction that enables the disabled threads. Use of the disable mask allows for the use of conditional return and break instructions in a multithreaded SIMD architecture.