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.

Date of Patent:
Oct. 27, 2015

Filed:

Jan. 09, 2013
Applicant:

Nvidia Corporation, Santa Clara, CA (US);

Inventors:

Maxim Naumov, Santa Clara, CA (US);

Sharanyan Chetlur, Banglore, IN;

Lung Sheng Chien, Santa Clara, CA (US);

Robert Strzodka, Santa Clara, CA (US);

Philippe Vandermersch, Santa Clara, CA (US);

Assignee:

NVIDIA CORPORATION, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/00 (2006.01); G06F 9/46 (2006.01); G06F 17/16 (2006.01);
U.S. Cl.
CPC ...
G06F 9/46 (2013.01); G06F 17/16 (2013.01);
Abstract

A system and method for re-factorizing a square input matrix on a parallel processor. In one embodiment, the system includes: (1) a matrix generator operable to generate an intermediate matrix by embedding a permuted form of the input matrix in a zeroed-out sparsity pattern of a combination of lower and upper triangular matrices resulting from a prior LU factorization of a previous matrix having a same sparsity pattern, reordering to minimize fill-in and pivoting strategy as the input matrix and (2) a re-factorizer associated with the matrix generator and operable to use parallel threads to apply an incomplete-LU factorization with zero fill-in on the intermediate matrix.


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