Electronics, Free Full-Text
4.8 (773) · $ 21.00 · In stock
Matrix multiplication is an important operation for many engineering applications. Sometimes new features that include matrix multiplication should be added to existing and even out-of-date embedded platforms. In this paper, an unusual problem is considered: how to implement matrix multiplication of 32-bit signed integers and fixed-point numbers on DSP having SIMD instructions for 16-bit integers only. For examined tasks, matrix size may vary from several tens to two hundred. The proposed mathematical approach for dense rectangular matrix multiplication of 32-bit numbers comprises decomposition of 32-bit matrices to matrices of 16-bit numbers, four matrix multiplications of 16-bit unsigned integers via outer product, and correction of outcome for signed integers and fixed point numbers. Several tricks for performance optimization are analyzed. In addition, ways for block-wise and parallel implementations are described. An implementation of the proposed method by means of 16-bit vector instructions is faster than matrix multiplication using 32-bit scalar instructions and demonstrates performance close to a theoretically achievable limit. The described technique can be generalized for matrix multiplication of n-bit integers and fixed point numbers via handling with matrices of n/2-bit integers. In conclusion, recommendations for practitioners who work on implementation of matrix multiplication for various DSP are presented.
Electronic Shop Advertisement Poster Templates
Electronics, Free Full-Text
【Lightweight LCD Writing Tablet】The lcd writing tablet is thin and light, has a narrow bezel, weighing only 107 grams and measuring 5.2mm thick with a
LCD Writing Tablet, Full Screen Erasable Digital Notepad for Kids and Adults, Drafting, Drawing and Leaving Message, 9.5 Inches Black
Wireless LCD PowerG 2-way Prox Keypad
Electronics, Free Full-Text
Honeybee Swarms Can Produce as Much Electric Charge as a Storm Cloud, Smart News, Bee
Free Electronics Recycling Event
Electronics, Free Full-Text, start the dual investment - learn & earn survey
80s Action Heroes Rambo and John McClane Make Their Explosive, mod player action optimization
E-Waste Recycling OC, Free Data Destruction
Mouser Electronics Named Major Sponsor of Control Automation Day
All Brand Electronics Vector Logo - Download Free SVG Icon
The Aed Detects A Shockable Rhythm Infant Online
Data Centric Publish Subscribe Flash Sales