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From: Loren Shure on 28 Jun 2010 11:28
In article <i04sp4$m8a$1(a)fred.mathworks.com>, iqbalnaved(a)gmail.com
says...
> "Malcolm Lidierth" <ku.ca.lck(a)htreidil.mloclam> wrote in message <i04b7t$fst$1(a)fred.mathworks.com>...
> > Ah - should read it all. You have an upper limit of 924Mb, hence the problem.
> > See http://www.mathworks.com/support/tech-notes/1100/1106.html
>
> I think I found something here,
> http://www.mathworks.com/access/helpdesk/help/techdoc/matlab_prog/br04bw6-98.html
>
> Here it says that,
> "If you increase the number of cells in a cell array over time, the size of the header also grows, thus using more of this segment in memory. This can eventually lead to "out of memory" errors."
>
> Any idea on optimizing my cell array pre-allocation ? I'm working on this.
>
> Thanks
>

Preallocate your cell array (but not their contents). You can do so
with

mycell{maxsize,1} = [];

or whatever you want to place in the last cell.

--
Loren
http://blogs.mathworks.com/loren
http://matlabwiki.mathworks.com/MATLAB_FAQ
From: Rob Campbell on 28 Jun 2010 11:38

> Any idea on optimizing my cell array pre-allocation ? I'm working on this.

Why not save to disk as you go? You won't have any RAM problems then. It may not be that much slower.
From: Naved Nouyed on 28 Jun 2010 14:05
"Rob Campbell" <matlab(a)robertREMOVEcampbell.removethis.co.uk> wrote in message <i0aflh$opu$1(a)fred.mathworks.com>...
>
> > Any idea on optimizing my cell array pre-allocation ? I'm working on this.
>
> Why not save to disk as you go? You won't have any RAM problems then. It may not be that much slower.

That's exactly what I'm doing! Also, using deal() to preallocate, this is much faster. Thanks a lot Rob and Malcolm for your inputs!

Cheers.
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