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MathGroup Archive 2007

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Re: memory release problem in mathematica6.0

  • To: mathgroup at smc.vnet.net
  • Subject: [mg83199] Re: memory release problem in mathematica6.0
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Thu, 15 Nov 2007 05:29:05 -0500 (EST)
  • Organization: Uni Leipzig
  • References: <fhegac$m08$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de

Hi,

you think that Mathematica call the memory management functions
of the operating system every time it aqquire or release memory ?

This would probably incredible slow .. it will request memory from the
operating system and integrate it inti its own memory management

And the operating system show it't own memory management but not that
of Mathematica ..

Regards
   Jens


jack wrote:
> Hi all,
> When i define large data structures, for example an array  "A" of
> million  of elements that occupy some  hundreds of MB of physical
> memory,when i clear it, with Clear[A] memory isn' t released by
> operating system. I' ve tried both on windows and linux.
> The result of MemoryInUse[] command of mathematica but the physical
> memory reported by the system monitor isn't released.
> I' ve tried also ClearSystemCache[] but with no result.
> Am i missing something?
> 
> Thanks!
> 
> 


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