Re: Octave 3.6.0 on Windows XP plot fails.

[Philip Nienhuis]

Hi Tatsuro:

Tatsuro MATSUOKA wrote:
> Hello
>
> --- On Fri, 2012/2/17, Philip Nienhuis wrote:
>
> > Tatsuro MATSUOKA wrote:
> > > Hello Philip
> > >
> > > --- On Thu, 2012/2/16, PhilipNienhuis wrote:
> > >
> > > > ksanger wrote
> > > > > Tatsuro;
> > > > >
> > > > > We fail badly after the last line.
> > > > >
> > > > > We obtain an error message:
> > > > > octave.exe - Application Error
> > > > > The instruction at "0x7c9101b3" referenced memory at "0x66b36406".  The
> > > > > memory could not be "written".
> > > > >
> > > > > Octave shows:
> > > > > assertion SetTrheadAffinityMask(thr->thrH, (1<&lt;proc)) failed, line 18
> > > > > of
> > > > > file
> > > > > /cygdrive/d/usr/Tatsu/cyghome-1.7/atlas/atlas-3.9.19build2/../ATLAS-3.9.19//src/threads/ATL_thread_start.c
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > ----- Original Message -----
> > > > > From:&quot;Tatsuro MATSUOKA&quot;&lt;address@hidden&gt;
> > > > > To:&lt;help@&gt;; "Kurt M. Sanger"&lt;address@hidden&gt;
> > > > > Sent: Wednesday, February 15, 2012 8:30 PM
> > > > > Subject: Re: Octave 3.6.0 on Windows XP plot fails.
> > > > >
> > > > >
> > > > > Hello
> > > > >
> > > > > Can you try the below test and report results?
> > > > > If octave crash by this test, the problem may come from the combination
> > > > > the
> > > > > libblas.dll and the Athlon.
> > > > >
> > > > > m=10000;
> > > > > n=32;
> > > > > temp=randn(m,n)+i*randn(m,n);
> > > > > b=temp'*temp;
> > > > >
> > > > > <snip>
> > > >
> > > > FYI:
> > > > Not only Athlon; this sequence of statements also leads to a crash on an
> > > > Intel Core Duo in WinXP SP3, both MinGW Octave 3.4.3&   3.6.0.
> > > >
> > > > Replacing liblas.dll solves this.
> > >
> > > What blas do you use? OpenBLAS? ALTAS? Reference BLAS?
> >
> > Until now I used the libblas.dll you have supplied in the binary on your
> > web site:
> > size: 3154958 bytes, 29 nov 2011 23:30  (installed by default.)
> >
> > The libblas.dll that works OK is the one you attached to your previous
> > post in this thread.
> >
> >
> > In /bin I see several ***blas***.dll files. I tried them one by one
> > using the sequence of statements above:
> >
> > On an Intel Core Duo 2.5 GHz:
> > libblas.dll.altas3.9.19-2   29-nov-2011 23:29 3154958 bytes ==>  CRASH
> > libblas.dll.openblas_a546694   2-sep-2011 03:07 6446606 bytes ==>  OK
> > libblas.dll.refblas     29-nov-2011 00:14  380193 bytes ==>  OK
> >
> > On a single-core Pentium-M 1.1 GHz:
> > libblas.dll.altas3.9.19-2   29-nov-2011 23:29 3154958 bytes ==>  CRASH
> > libblas.dll.openblas_a546694   2-sep-2011 03:07 6446606 bytes ==>  CRASH
> > libblas.dll.refblas     29-nov-2011 00:14  380193 bytes ==>  OK
> >
> >
> > BTW considering equal size of libblas.dll.altas3.9.19-2 and the default
> > installed libblas.dll, am I right to conclude that these are actually
> > the same?
>
> Yes!
>
> Now I have used libblas from ATLAS 3.8.4, which seems to be more stable than 
> altas3.9.19. However it is not compatible to in binary level so that I cannot 
> replace it.
> I am waiting until octave-3.6.1 to be public.
>
> BTW, I have uploaded multi-architecture OpenBLAS on 
> http://www.tatsuromatsuoka.com/octave/Eng/Win/
> OpenBLAS.MulitiArchi.7z
>
> It has been discussed on
> http://octave.1599824.n4.nabble.com/OpenBLAS-discussion-was-Re-bug-34822-Mingw-panics-on-a-simple-complex-product-td4385802.html
>
> I would like to collect  information about multi-architecture OpenBLAS.


This multi-architecture OpenBLAS works OK with MinGW-Octave-3.6.0 on 
both my PCs:
- Core Duo 2.5 Ghz
- Pentium-M 1.1 Ghz
(both WinXP SP3)

That is.... I haven't run any benchmarks, I just verified that the test:
>>>>> m=10000;
>>>>> n=32;
>>>>> temp=randn(m,n)+i*randn(m,n);
>>>>> b=temp'*temp;
runs without a crash.

Thanks Tatsuro,

Philip