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Re: QUESTION: is there a command in idl which could clean up memory pieces? [message #62989 is a reply to message #62987]

Tue, 21 October 2008 15:52

litongmu
Messages: 7
Registered: October 2008

Junior Member

On Oct 21, 12:16 pm, pgri...@gmail.com wrote:
> liton...@gmail.com wrote:
>> Hi all,
>
>> I am wondering if there is a command in IDL which could clean up all
>> the memory pieces to generate a whole big piece which could be used by
>> IDL.
>> Because, recently I am running a code to read and deal with cdf files.
>> And there are lots of files (more than 1000). The code cannot finish
>> them once, because of memory problem.
>
> While it is possible you are having a memory fragmentation issue,
> it seems more likely you are just running out of memory. Can you tell
> us how much memory you use at the time of the failure?
> Use: help,/mem
>
> Cheers,
> Paolo
>
>> And I know that in Matlab there is a command called 'pack', which
>> could clean up all the memory pieces. So I am wondering if there is a
>> similar counterpart in IDL. It took me really a long time to find in
>> the manuals. But no luck.
>> I appreciate your help and your try.
>
>> tongmu
>
>

It is different. If I run my code in my desktop, the memory usage is
about 300m, which, as you mentioned, is likely to be out of memory.
But if I use my laptop, the memory usage is about 30m or less.
However, I called a subroutine to open and read a cdf file every time,
and in one file, there are only like 5000 records. So I think there
should be enough memory to each file.
Another reason why I believe it is caused by memory fragmentation is
that in my code, I need to resize some arrays several times. It could
generate lots of memory pieces.

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[Message index]

		Re: QUESTION: is there a command in idl which could clean up memory pieces? By: litongmu on Tue, 21 October 2008 22:58
		Re: QUESTION: is there a command in idl which could clean up memory pieces? By: russell.grew on Tue, 21 October 2008 18:27
		Re: QUESTION: is there a command in idl which could clean up memory pieces? By: litongmu on Tue, 21 October 2008 15:52
		Re: QUESTION: is there a command in idl which could clean up memory pieces? By: pgrigis on Tue, 21 October 2008 12:16
		Re: QUESTION: is there a command in idl which could clean up memory pieces? By: Andrew Cool on Wed, 22 October 2008 20:32

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