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IDL and the RAM memory [message #48954]

Wed, 07 June 2006 09:26

txominhermos
Messages: 25
Registered: October 2005

Junior Member

Hello group!

I am doing some test to know the capabilities of IDL 6.0.1 in a
Computer with 4 Gigabytes of RAM memory.

The program charges images of 203 MB (213,479,424 bytes). In the fifth
image IDL stops the program when...

ENVI> print, memory()
860445965 61829 55020 860485241

And says...

% Unable to allocate memory: to make array.

Why I cannot use the whole RAM memory?

Thanks for your attention

txomin

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Re: IDL and the RAM memory [message #49042 is a reply to message #48954]

Thu, 15 June 2006 15:29

RC Olsen
Messages: 1
Registered: June 2006

Junior Member

following the reply by David Fanning...

We had a problem in gridding a large ( ~ 1GB) irregularly gridded
data set. The IDL contour routine worked fine on subsets of the data,
but eventually the PC's failed as we tried to use the whole scene. We
put it on the 64 bit OS - Sun Blade - and found we needed a bigger
virtual memory. We put a 32 GB (fast) dedicated swap disk in. As we
tracked memory usage, we found that usage peaked at about 28 GB.
Worked like a champ.....

rco

txominhermos@gmail.com wrote:
> Hello group!
>
> I am doing some test to know the capabilities of IDL 6.0.1 in a
> Computer with 4 Gigabytes of RAM memory.
>

>
> txomin

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