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Method and structure for a hybrid full-packed storage format as a single rectangular format data structure

United States Patent Application

20060173947
A1
View the Complete Application at the US Patent & Trademark Office
A method (and structure) of linear algebra processing, includes processing a (real or complex) matrix data having elements originally stored in one of a triangular format and a symmetric matrix format in a subroutine designed to process matrix data in a full format. The processing uses a hybrid full packed data structure, which provides a rectangular space characteristic of the full format. The rectangular space is defined by a leading dimension (LD). Inside of the rectangular space are stored a plurality of entities that include all elements of the matrix data originally stored in the triangular or symmetric format.
Gustavson, Fred Gehrung (Briarcliff Manor, NY), Gunnels, John A. (Brewster, NY)
International Business Machines Corporation (Armonk NY)
11/ 045,354
January 31, 2005
U.S. GOVERNMENT RIGHTS IN THE INVENTION [0002] This invention was made with Government support under Contract No. Blue Gene/L B517552 awarded by the Department of Energy. The Government has certain rights in this invention.