Re: matrix size for plotting ?

[Christoph Ellenberger]

-------- Original-Nachricht --------
> Datum: Mon, 05 Mar 2012 14:58:11 +0100
> Von: "Christoph Ellenberger" <address@hidden>
> An: Michael Goffioul <address@hidden>, address@hidden
> CC: address@hidden
> Betreff: Re: matrix size for plotting ?

> 
> -------- Original-Nachricht --------
> > Datum: Mon, 5 Mar 2012 13:06:24 +0000
> > Von: Michael Goffioul <address@hidden>
> > An: "Jordi Gutiérrez Hermoso" <address@hidden>
> > CC: Christoph Ellenberger <address@hidden>,
> address@hidden
> > Betreff: Re: matrix size for plotting ?
> 
> > On Mon, Mar 5, 2012 at 11:49 AM, Jordi Gutiérrez Hermoso
> > <address@hidden> wrote:
> > > On 5 March 2012 05:24, Christoph Ellenberger <address@hidden>
> > > wrote:
> > >> I observe the following and wanted to know if this is intended or
> > >> how can I circumvent my problem (eg increasing memory).
> > > [snip]
> > >> QtHandles and fltk crash for imagesc already for X>=14, while
> > >> gnuplot crashes for X>=16.
> > >
> > > No, a crash is never intended. Please file a bug report.
> > >
> > >    http://www.gnu.org/software/octave/bugs.html
> > 
> > I tried the VS2010 version on an Atom N270 (500MB RAM) and the imagesc
> > sample didn't crash with X=14 or X=16. It took ages (and filled up RAM
> > and swap) to render X=16 case, but that's expected. The OpenGL
> > renderer is inefficient poor at rendering images.
> > 
> > Michael.
> 
> I do have a i5 CPU 750 (2.66GHz) with 3.4 GB RAM so it shouldnt be a cause
> of to low RAM. But when using the debug button I end up at an access
> violation of ATIOGLXX.dll (I do have a Raedon HD 4650). It might be that since
> this is a "downgraded" Win7 PC to XP that the driver may be faulty. I will
> try an driver update and report later. 
> 
> thanks
> christoph
> 
> PS I will wait for sending a bug report until it is a real bug then [it
> rather looks as I have a misconfigured PC]
--

Ok after eliminating ATI's OpenGL I am able to plot up to X=16, X=17 freezes 
gnuplot, QThandles throws an exception it can't handle (crash) and fltk gives a 
memory exhausted or size too large for range of octave's index type. So I guess 
indexes are only up to int16 for this kind of plot.

Thanks
christoph

PS btw thank you also for the 3.6.x windows versions.
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