This bugzilla service is closed. All entries have been migrated to https://gitlab.com/libeigen/eigen
Bug 1434 - Optional matrix balancing prior to matrix decompositions
Summary: Optional matrix balancing prior to matrix decompositions
Status: NEW
Alias: None
Product: Eigen
Classification: Unclassified
Component: General (show other bugs)
Version: 3.4 (development)
Hardware: All All
: Normal Feature Request
Assignee: Nobody
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-06-06 14:10 UTC by Gael Guennebaud
Modified: 2019-12-04 17:01 UTC (History)
3 users (show)


Attachments
Add an attachment (proposed patch, testcase, etc.)

Description Gael Guennebaud 2017-06-06 14:10:07 UTC 
It would be nice to offer options for matrix balancing as a preprocessing steps of matrix decompositions. Here is a related SO question with code for the eigenvalue problem:

https://stackoverflow.com/questions/43151853/eigen-balancing-matrix-for-eigenvalue

There is also an IterScaling<> class in unsupported/ implementing "A Symmetry Preserving Algorithm for Matrix Scaling" for linear solvers.
Comment 1 Nobody 2019-12-04 17:01:45 UTC 
-- GitLab Migration Automatic Message --

This bug has been migrated to gitlab.com's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.com/libeigen/eigen/issues/1434.
Note You need to log in before you can comment on or make changes to this bug.