[Octave-bug-tracker] [bug #41192] Basic matrix inversion fails in MSVC build for Windows

[Michael Goffioul]

Update of bug #41192 (project octave):

                  Status:               Need Info => Wont Fix               
             Open/Closed:                    Open => Closed                 

    _______________________________________________________

Follow-up Comment #12:

After testing, it appears the problem lies in OpenBLAS. If you select another
linear algebra library during installation, the problem does not occur.

The Octave/MSVC 3.6.4 still uses OpenBLAS-0.2.2. I've tried with a newer
version of OpenBLAS, 0.2.8, and the problem does not occur either. Looking at
OpenBLAS changelog, a couple of bugs have been fixed in gemm/gemv computation
on x86/x86_64 CPU. I think you may have hit one of those bugs.

I've uploaded this newer OpenBLAS library here:
https://dl.dropboxusercontent.com/u/45539519/vc100-libblas_openblas.dll
Install it into octave bin/ subdirectory, as vc100-libblas.dll. This is only
needed if OpenBLAS was selected as linear algebra library during
installation.

I'm closing this bug as it'll be fixed automatically when a new Octave/MSVC
binary is ever generated.


    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?41192>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/