bugGNU Scientific Library - Bugs: bug #46369, lmniel nonlinear least squares...

 
 

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bug #46369: lmniel nonlinear least squares solver optimization

Submitter:  Patrick Alken <psa>
Submitted:  Tue 03 Nov 2015 06:51:35 AM UTC
   
 
Category:  None Severity:  3 - Normal
Priority:  5 - Normal Operating System: 
Status:  Fixed Assigned to:  None
Open/Closed:  Closed Release: 

Discussion

Fri 20 Nov 2015 12:05:22 AM UTC, comment #1: 

Changed dgemm -> dsyrk in commit 85f33adc091ec6a1ecf43d4ad493629ffc69acb4

Patrick Alken <psa>
Group administrator
Tue 03 Nov 2015 06:51:35 AM UTC, original submission:  

The lmniel solver is using dgemm to compute J^T J and then a QR decomposition. This should be changed to dsyrk and a Cholesky decomposition for speed improvement

Patrick Alken <psa>
Group administrator

 

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    History

    Follow 2 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2016-09-15 psa StatusNone Fixed
        Open/ClosedOpen Closed

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