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


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bug #46369: lmniel nonlinear least squares solver optimization

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

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

Changed dgemm -> dsyrk in commit 85f33adc091ec6a1ecf43d4ad493629ffc69acb4

Patrick Alken <psa>
Project 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>
Project Administrator


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    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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