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From: Vanessa Lim on 17 Feb 2010 15:33
Hi,
I have 2 machines available at work to do EEG processing, I've tried to increase my memory on both machines as I have files that are greater that 200 MB and they won't get progressed by matlab. I seem to have a limit of reading in files about 68 MB using EEGlab (http://sccn.ucsd.edu/eeglab/). I have tried to increase limits by checking the allocated memory on my vista laptop (Intel, 2 duo CPU, P8600 @ 2.4 GHz, memory 4 G, 32 bit OS) (says paging file size, allocated 3871 MB; recommended 5356, min 16 MB) I have it on automatically manage paging file size for all drivers as the matlab on memory suggests.

When I do this
x=rand(1000,1000,200)
??? Error using ==> rand
Out of memory. Type HELP MEMORY for your options.

feature memstats I get
Physical Memory (RAM):
In Use: 2097 MB (83115000)
Free: 1473 MB (5c1eb000)
Total: 3571 MB (df300000)
Page File (Swap space):
In Use: 2056 MB (80801000)
Free: 5270 MB (1496fd000)
Total: 7326 MB (1c9efe000)
Virtual Memory (Address Space):
In Use: 486 MB (1e621000)
Free: 1561 MB (619bf000)
Total: 2047 MB (7ffe0000)
Largest Contiguous Free Blocks:
1. [at 1a790000] 1323 MB (52b30000)
2. [at 7c41b000] 50 MB ( 32d5000)
3. [at 6ec23000] 26 MB ( 1aed000)
4. [at 6d2c9000] 24 MB ( 18b7000)
5. [at 772cb000] 16 MB ( 1015000)
6. [at 1812c000] 16 MB ( 1004000)
7. [at 70713000] 10 MB ( a3d000)
8. [at 7f7f0000] 7 MB ( 7b5000)
9. [at 7355f000] 7 MB ( 791000)
10. [at 73d62000] 7 MB ( 76e000)
======= ==========
1490 MB (5d2b3000)

Any ideas how to change, increase my memory please? Many thanks.
Vanessa Lim
From: Walter Roberson on 17 Feb 2010 15:43
Vanessa Lim wrote:

> x=rand(1000,1000,200)

200 million times 8 bytes per element is 1.6 billion bytes, 1.6 Gb, which
exceeds the size of your largest free block of 1323 Mb.

Are you sure you've been calculating your file sizes properly?

> Virtual Memory (Address Space):
> In Use: 486 MB (1e621000)
> Free: 1561 MB (619bf000)
> Total: 2047 MB (7ffe0000)

Looks like you are not using the /3G boot hack.
From: Vanessa Lim on 17 Feb 2010 17:05
Walter Roberson <roberson(a)hushmail.com> wrote in message <hlhktd$n30$1(a)canopus.cc.umanitoba.ca>...
> Vanessa Lim wrote:
>
> > x=rand(1000,1000,200)
>
> 200 million times 8 bytes per element is 1.6 billion bytes, 1.6 Gb, which
> exceeds the size of your largest free block of 1323 Mb.
>
> Are you sure you've been calculating your file sizes properly?
>
> > Virtual Memory (Address Space):
> > In Use: 486 MB (1e621000)
> > Free: 1561 MB (619bf000)
> > Total: 2047 MB (7ffe0000)
>
> Looks like you are not using the /3G boot hack.
Hi,
I did BCDEdit /set increaseuserva 3072 is this the 3G boot hack you were mentioning from
http://www.mathworks.com/support/tech-notes/1100/1107.html

feature memstats

Physical Memory (RAM):
In Use: 1428 MB (59479000)
Free: 2142 MB (85e87000)
Total: 3571 MB (df300000)
Page File (Swap space):
In Use: 2035 MB (7f334000)
Free: 5291 MB (14abca000)
Total: 7326 MB (1c9efe000)
Virtual Memory (Address Space):
In Use: 536 MB (21882000)
Free: 1511 MB (5e75e000)
Total: 2047 MB (7ffe0000)
Largest Contiguous Free Blocks:
1. [at 1c060000] 1233 MB (4d1c0000)
2. [at 7c41b000] 50 MB ( 32d5000)
3. [at 6924b000] 23 MB ( 17d5000)
4. [at 6bba7000] 23 MB ( 1719000)
5. [at 6ec23000] 18 MB ( 12fd000)
6. [at 772cb000] 16 MB ( 1015000)
7. [at 6e1d3000] 9 MB ( 9ad000)
8. [at 7f7f0000] 7 MB ( 7b4000)
9. [at 6ff5e000] 7 MB ( 7b2000)
10. [at 7355f000] 7 MB ( 791000)
======= ==========
1399 MB (57739000)

prior to the 3G boot I could get
x=rand(1000,1000,173);
but now I can only get x=rand(1000,1000,161);
I am really only interested in trying to get EEG = pop_readegi('filename') to read files greater than 68 MB.

Many thanks,
Vanessa
From: Ashish Uthama on 18 Feb 2010 11:39
On Wed, 17 Feb 2010 15:33:18 -0500, Vanessa Lim <v.lim(a)auckland.ac.nz>
wrote:

> Hi,
> I have 2 machines available at work to do EEG processing, I've tried to
> increase my memory on both machines as I have files that are greater
> that 200 MB and they won't get progressed by matlab. I seem to have a
> limit of reading in files about 68 MB using EEGlab
> (http://sccn.ucsd.edu/eeglab/). I have tried to increase limits by
> checking the allocated memory on my vista laptop (Intel, 2 duo CPU,
> P8600 @ 2.4 GHz, memory 4 G, 32 bit OS) (says paging file size,
> allocated 3871 MB; recommended 5356, min 16 MB) I have it on
> automatically manage paging file size for all drivers as the matlab on
> memory suggests. When I do this
> x=rand(1000,1000,200)
> ??? Error using ==> rand
> Out of memory. Type HELP MEMORY for your options.
>
> feature memstats I get Physical Memory (RAM):
> In Use: 2097 MB (83115000)
> Free: 1473 MB (5c1eb000)
> Total: 3571 MB (df300000)
> Page File (Swap space):
> In Use: 2056 MB (80801000)
> Free: 5270 MB (1496fd000)
> Total: 7326 MB (1c9efe000)
> Virtual Memory (Address Space):
> In Use: 486 MB (1e621000)
> Free: 1561 MB (619bf000)
> Total: 2047 MB (7ffe0000)
> Largest Contiguous Free Blocks:
> 1. [at 1a790000] 1323 MB (52b30000)
> 2. [at 7c41b000] 50 MB ( 32d5000)
> 3. [at 6ec23000] 26 MB ( 1aed000)
> 4. [at 6d2c9000] 24 MB ( 18b7000)
> 5. [at 772cb000] 16 MB ( 1015000)
> 6. [at 1812c000] 16 MB ( 1004000)
> 7. [at 70713000] 10 MB ( a3d000)
> 8. [at 7f7f0000] 7 MB ( 7b5000)
> 9. [at 7355f000] 7 MB ( 791000)
> 10. [at 73d62000] 7 MB ( 76e000)
> ======= ==========
> 1490 MB (5d2b3000)
>
> Any ideas how to change, increase my memory please? Many thanks.
> Vanessa Lim

You have 1473 MB free and the ability to create a 1323MB array.
How would increasing this help you in reading a 68MB file, dont you
already have enough?

I suspect bad code somewhere, if you know where in the code this is
thrown, try putting a break-point before it and see if you notice anything
interesting.
From: Vanessa Lim on 18 Feb 2010 20:48
"Ashish Uthama" <first.last(a)mathworks.com> wrote in message <op.u8b0js1ja5ziv5(a)uthamaa.dhcp.mathworks.com>...
> On Wed, 17 Feb 2010 15:33:18 -0500, Vanessa Lim <v.lim(a)auckland.ac.nz>
> wrote:
>
> > Hi,
> > I have 2 machines available at work to do EEG processing, I've tried to
> > increase my memory on both machines as I have files that are greater
> > that 200 MB and they won't get progressed by matlab. I seem to have a
> > limit of reading in files about 68 MB using EEGlab
> > (http://sccn.ucsd.edu/eeglab/). I have tried to increase limits by
> > checking the allocated memory on my vista laptop (Intel, 2 duo CPU,
> > P8600 @ 2.4 GHz, memory 4 G, 32 bit OS) (says paging file size,
> > allocated 3871 MB; recommended 5356, min 16 MB) I have it on
> > automatically manage paging file size for all drivers as the matlab on
> > memory suggests. When I do this
> > x=rand(1000,1000,200)
> > ??? Error using ==> rand
> > Out of memory. Type HELP MEMORY for your options.
> >
> > feature memstats I get Physical Memory (RAM):
> > In Use: 2097 MB (83115000)
> > Free: 1473 MB (5c1eb000)
> > Total: 3571 MB (df300000)
> > Page File (Swap space):
> > In Use: 2056 MB (80801000)
> > Free: 5270 MB (1496fd000)
> > Total: 7326 MB (1c9efe000)
> > Virtual Memory (Address Space):
> > In Use: 486 MB (1e621000)
> > Free: 1561 MB (619bf000)
> > Total: 2047 MB (7ffe0000)
> > Largest Contiguous Free Blocks:
> > 1. [at 1a790000] 1323 MB (52b30000)
> > 2. [at 7c41b000] 50 MB ( 32d5000)
> > 3. [at 6ec23000] 26 MB ( 1aed000)
> > 4. [at 6d2c9000] 24 MB ( 18b7000)
> > 5. [at 772cb000] 16 MB ( 1015000)
> > 6. [at 1812c000] 16 MB ( 1004000)
> > 7. [at 70713000] 10 MB ( a3d000)
> > 8. [at 7f7f0000] 7 MB ( 7b5000)
> > 9. [at 7355f000] 7 MB ( 791000)
> > 10. [at 73d62000] 7 MB ( 76e000)
> > ======= ==========
> > 1490 MB (5d2b3000)
> >
> > Any ideas how to change, increase my memory please? Many thanks.
> > Vanessa Lim
>
> You have 1473 MB free and the ability to create a 1323MB array.
> How would increasing this help you in reading a 68MB file, dont you
> already have enough?
>
> I suspect bad code somewhere, if you know where in the code this is
> thrown, try putting a break-point before it and see if you notice anything
> interesting.

The software is Matlab based that I am using to do analyses, but it says ?? Out of memory. Type Help Memory' for your options at files that are bigger than 70 MB even though I have as you say 1473 free in matlab.
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