bugGNU Octave - Bugs: bug #45008, [octave forge] (control) unit...

 
 

bug #45008: [octave forge] (control) unit tests for ltimodels and @lit/minreal fail with OpenBLAS

Submitted by:  Rafael Laboissiere <rlaboiss>
Submitted on:  Mon 04 May 2015 04:57:49 PM UTC  
 
Category: Octave Forge PackageSeverity: 2 - Minor
Priority: 3 - LowItem Group: Inaccurate Result
Status: Works For MeAssigned to: None
Originator Name: Open/Closed: Open
Release: otherOperating System: GNU/Linux

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Tue 09 Jun 2015 08:44:18 PM UTC, comment #3:

Thanks for the explanation, Lukas. I do not know whether it is feasible or not, but you could change the "test failed" message to a "known failure" message, in case the reference BLAS/LAPACK is not used.

Rafael Laboissiere <rlaboiss>
Tue 09 Jun 2015 07:10:44 PM UTC, comment #2:

Yes, this is a known "error". The examples used in these tests are from the SLICOT library. The SLICOT guys strongly recommend the use of reference BLAS/LAPACK and so do I. One could argue that these tests should be removed, but I prefer to keep them so users are aware of the fact that they are getting different results which may be wrong.

Lukas Reichlin <paramaniac>
Sun 31 May 2015 06:43:48 PM UTC, comment #1:

I think this is a known "error" and Lukas has responded to this before saying that the control package tests should be run with reference BLAS and LAPACK only. If the tests are run with ATLAS or OpenBLAS there may be tolerance errors.

If I update-alternatives to use reference BLAS/LAPACK I get no errors, but with OpenBLAS I see the same as reported here.

Marking as "works for me", I'll let Lukas reply definitively whether this should be closed as working or not.

Mike Miller <mtmiller>
Project Administrator
Mon 04 May 2015 04:57:49 PM UTC, original submission:

I am getting this with the control package, version 2.8.1:

Rafael Laboissiere <rlaboiss>

 

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  • -unavailable- added by jwe (Updated the item)
  • -unavailable- added by paramaniac (Posted a comment)
  • -unavailable- added by mtmiller (Posted a comment)
  • -unavailable- added by mtmiller
  • -unavailable- added by rlaboiss (Submitted the item)
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    Follow 7 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Sun 13 Aug 2017 12:54:16 PM UTCjweSummarycontrol package: unit tests for ltimodels and @lit/minreal fail with OpenBLAS=>[octave forge] (control) unit tests for ltimodels and @lit/minreal fail with OpenBLAS
    Tue 22 Dec 2015 04:03:11 PM UTCmtmillerSeverity3 - Normal=>2 - Minor
      Priority5 - Normal=>3 - Low
      Summarycontrol: Unit tests for ltimodels and @lit/minreal fail=>control package: unit tests for ltimodels and @lit/minreal fail with OpenBLAS
    Sun 31 May 2015 06:43:48 PM UTCmtmillerItem GroupIncorrect Result=>Inaccurate Result
      StatusNone=>Works For Me
      Carbon-Copy-=>Added paramaniac

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