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:
Oct. 03, 2017
Filed:
Feb. 16, 2015
International Business Machines Corporation, Armonk, NY (US);
Christoph M. Angerer, Zurich, CH;
Konstantinos Bekas, Horgen, CH;
Alessandro Curioni, Gattikon, CH;
Silvio Dragone, Olten, CH;
Heiner Giefers, Langnau am Albis, CH;
Christoph Hagleitner, Wallisellen, CH;
Raphael C. Polig, Dietkon, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
An iterative refinement apparatus configured to generate data defining a solution vector x for a linear system represented by Ax=b, where A is a predetermined matrix and b is a predetermined vector. An outer solver processes input data, defining the matrix A and vector b, in accordance with an outer loop of an iterative refinement method to generate said data defining the solution vector x. An inner solver processes data items in accordance with an inner loop of the iterative refinement method. The inner solver is configured to process said data items having variable bit-width and data format. A precision controller determines the bit-widths and data formats of the data items adaptively in dependence on the results of the processing steps of the iterative refinement method; the precision controller configured to control operation of the inner solver for processing said data items with the bit-widths and data formats.