Thread Subject:

Error in loading a very large matrix

I need to load a 14.6 GB .mat file. However, the maximum possible array that Matlab can produce is 13.8 GB.

Also, the total memory used by Matlab is 480 MB and the physical memory (RAM) is 8 GB.
I cannot resuce the size of my matrix as well.

When I am trying to load this file, after an hour, I get the error: 'Error in load 'filename.mat'.

Any ideas??

"Christina " <christina.bakopoulou09@imperial.ac.uk> wrote in message
news:jujil5$pfq$1@newscl01ah.mathworks.com...
> I need to load a 14.6 GB .mat file. However, the maximum possible array
> that Matlab can produce is 13.8 GB.
>
> Also, the total memory used by Matlab is 480 MB and the physical memory
> (RAM) is 8 GB.
> I cannot resuce the size of my matrix as well.
>
> When I am trying to load this file, after an hour, I get the error: 'Error
> in load 'filename.mat'.
>
> Any ideas??

If your MAT-file contains multiple variables: LOAD each one separately,
process it, CLEAR it from memory, and process the next.
If your MAT-file contains one single LARGE variable, see if MATFILE does
what you need:

http://www.mathworks.com/help/techdoc/rn/bs10plx-1.html#bs10ply-2

Alternately find a machine with more memory to LOAD your file. [You might
want to save pieces of that variable to separate MAT-files on that machine,
if you need to process the data on your original machine.]

--
Steve Lord
slord@mathworks.com
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