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Re: Huge memory consumption of GIF.exe

  • To: mathgroup at smc.vnet.net
  • Subject: [mg97155] Re: Huge memory consumption of GIF.exe
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Fri, 6 Mar 2009 04:28:07 -0500 (EST)
  • Organization: Uni Leipzig
  • References: <golqv7$qb4$1@smc.vnet.net> <goo7ej$sbe$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de

Hi,

almost all export/import file formats are realized as MathLink
programs that are loaded by the kernel when needed.
And so, GIF.exe is the MathLink program that is called by the kernel
when you import/export a GIF.

Regards
   Jens

dh wrote:
> Hi,
> 
> what is GIF.exe?
> 
> Anyway, it seems to be an external program that has nothing to do with 
> 
> mathematica.
> 
> Daniel
> 
> 
> 
> andreas.kohlmajer at gmx.de wrote:
> 
>> Hello!
> 
> 
>> I have difficulties with high memory consumption of GIF.exe. I need to
> 
>> statistically evaluate a few million SQL-recordsets (grouped by a few
> 
>> thousand batches). After calculating the data, I also create some
> 
>> little GIF-images as a visual aid. So far, I have generated approx.
> 
>> 2000 images using Export[..., "...GIF"] (average image size approx.
> 
>> 120 kB) and GIF.exe now consumes approx. 1 GB of RAM. The Mathematica
> 
>> code is a loop (using some Block constructs); all intermediate
> 
>> variables are cleared (using Clear[...]) at the end of the loop.
> 
> 
>> It seems, that GIF.exe does not deallocate the used memory. Is there
> 
>> any way to deallocate the memory used by GIF.exe? The Mathematica
> 
>> front end has crashed after 4 hours and I still need to evaluate a few
> 
>> hundred batches.
> 
> 
>> Thanks for any help!
> 
> 
> 
> 


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