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MathGroup Archive 1999

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Re: Freeing memory in Mathematica

  • To: mathgroup at smc.vnet.net
  • Subject: [mg19895] Re: Freeing memory in Mathematica
  • From: math at che.freesurf.fr (Math)
  • Date: Sun, 19 Sep 1999 18:47:40 -0400
  • References: <7q9g8i$o43@smc.vnet.net> <7qkmbq$4rr$2@dragonfly.wolfram.com> <7qqcd8$4hh@smc.vnet.net> <7r24do$6q0@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

In article <7r24do$6q0 at smc.vnet.net>, Mark Sofroniou wrote:
>bettina_hansen at writeme.com wrote:
>
>> Any suggestions for easier implementation of memory freeing?
>
>Here are two methods. Set $HistoryLength to discard stored results after a
>certain number of calculations.
>
>In[1]:= ?$HistoryLength
>$HistoryLength specifies the number of previous lines of input and output to
>   keep in a Mathematica session.
>
>You can also load this package which calls Share at specified intervals. The
>intervals can be specified by setting $MemoryIncrement.
>
>In[2]:= Needs["Utilities`MemoryConserve`"];
>
>In[3]:= ?MemoryConserve
>MemoryConserve will reduce memory use with the Share function when memory used
>   has increased by $MemoryIncrement.   On[ MemoryConserve] will use $Pre to
>   make this happen automatically.
>

Beware that the Share[] function can be very time-expansive and that its
effectiveness depends a lot of the kind of data you handle.



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