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. 10, 2012
Filed:
Dec. 19, 2008
Scott Le Grand, Soquel, CA (US);
Scott Le Grand, Soquel, CA (US);
Nvidia Corporation, Santa Clara, CA (US);
Abstract
One embodiment of the present invention sets forth a technique for efficiently performing N-body computations using parallel computation systems. The technique involves a first processing step whereby a force matrix is partitioned into tiles, which are assigned to a one or more thread groups for processing. An off-diagonal tile may be aligned to include no diagonal cells, while an on-diagonal tile includes diagonal cells. One approach for computing either type of tile involves assigning each row from a tile to a thread within a thread group. Each thread operates on an offset pattern to avoid access conflicts to a shared memory. A net force for each atom within an N-body system is then computed by efficiently adding constituent forces stored within the force matrix using reduction operations on the force matrix.