MultipleQR

Perform a bunch of QR factorization of same size matrix

Version 3.0.2 (14,4 ko)
157 téléchargements
(0)
2 déc. 2020

Vous suivez désormais cette soumission

If you have many (small) matrices that need to factorized in QR, instead of calling MATLAB qr in the for-loop you could use this function that can reduce by more than 6 the runtime.

According to my test MultipleQR is faster than MATLAB qr when dimension <= 10 and slower beyond that

Citation pour cette source

Bruno Luong (2026). MultipleQR (https://fr.mathworks.com/matlabcentral/fileexchange/68976-multipleqr), MATLAB Central File Exchange. Extrait(e) le .

Catégories

En savoir plus sur Linear Algebra dans Help Center et MATLAB Answers

Informations générales

Compatibilité avec les versions de MATLAB

  • Compatible avec toutes les versions

Plateformes compatibles

  • Windows
  • macOS
  • Linux
Ouvrir dans un nouvel onglet
Version Publié le Notes de version
3.0.2

Uncheck compatibility with Linux and Mac, due to unknown OpenMP mex building command by the author
3.0.1

Implementation in MEX openmp
2.0.4

speed optimization
2.0.3

Add a note on the determinant value of Q
2.0.2

Speed optimization
Add script for benchmark
2.0.1

Fix issue when number of page is 0
2.0.0

Fix issue of tall matrices
Option to output economic size output
Implement multi-solver using QR decomposition
1.0.0