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:
Jan. 07, 2014
Filed:
Nov. 18, 2011
Igor Ostrovsky, Redmond, WA (US);
Zachary David Johnson, Valley Center, CA (US);
Igor Ostrovsky, Redmond, WA (US);
Zachary David Johnson, Valley Center, CA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
The present invention extends to methods, systems, and computer program products for automatically optimizing memory accesses by kernel functions executing on parallel accelerator processors. A function is accessed. The function is configured to operate over a multi-dimensional matrix of memory cells through invocation as a plurality of threads on a parallel accelerator processor. A layout of the memory cells of the multi-dimensional matrix and a mapping of memory cells to global memory at the parallel accelerator processor are identified. The function is analyzed to identify how each of the threads access the global memory to operate on corresponding memory cells when invoked from the kernel function. Based on the analysis, the function altered to utilize a more efficient memory access scheme when performing accesses to the global memory. The more efficient memory access scheme increases coalesced memory access by the threads when invoked over the multi-dimensional matrix.