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:
Jul. 09, 2019
Filed:
Jul. 28, 2017
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Guohua Jin, Acton, MA (US);
Advanced Micro Devices, Inc., Santa Clara, CA (US);
Abstract
Systems, apparatuses, and methods for performing run-time checking of access uniformity of vector memory access instructions are disclosed. A system includes a vector unit, a scalar unit, and a memory. The system performs a run-time check to determine if two or more threads of a wave have access uniformity to the memory prior to executing a vector memory access instruction for the wave on the vector unit. The system replaces the vector memory access instruction with a group of instructions responsive to determining that two or more threads of the wave have access uniformity to the memory. The group of instructions includes a scalar access instruction to memory followed by a cross-thread data sharing instruction. The scalar access instruction is executed on the scalar unit. Alternatively, the group of instructions can include a vector memory access instruction by only a single thread in each group having access uniformity.