Re: memory limitations of octave

[Robert A. Macy]

Markus,

forgot to cc the group on that previous email response,
would you post it?

Also, I'm running ancient 2.1.50a binary on Windows XP
which kept crashing due to the large file sizes, around
20MB  After increasing the memory allocated using this
batch file...

cd\
cd Program Files\GNU*\bin
regtool -i set "/HKCU/Software/GNU
Octave/Cygwin/heap_chunk_in_mb" 1024
regtool -v list "/HKCU/Software/GNU Octave/Cygwin"
cd\
cd Documents and Settings\Robert\My Documents

...Note wrap around of regtool line UNWRAP it

I never crashed again.  But...increasing my RAM from 250 to
500 made the program take 2 minutes instead of 12 minutes.
 Nice surprise, no?

                   - Robert -

> Markus Sondermann wrote:
> 
> >Hello!
> >
> >I have tried to work with arrays of several millions of
> elements (say, 4
> >millions). If I try to make a FFT, I get an error
> message 'memory exhausted'.
> >I get the same message if I try to load binary data from
> files, e.g., if I try
> >to load more than 11 million single precision floating
> point numbers. The
> >problem occurs with the precompiled windows binary
> (version 2.1.50) as well as
> >with the ovtave package coming along with Fedora Core 3.
> What can I do to
> >handle large amounts of data? Compile from source with
> appropriate settings?
> >  



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