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A slow start

  • To: mathgroup at smc.vnet.net
  • Subject: [mg112289] A slow start
  • From: Alexei Boulbitch <alexei.boulbitch at iee.lu>
  • Date: Wed, 8 Sep 2010 00:57:21 -0400 (EDT)

Dear Community,

Since recently my Mathematica (version 7.0.1.0 under Win XP) starts 
extremely slowly. I am aware of the fact  that the first operation takes 
Mathematica somewhat more time than others. In my case however, it takes 
much-much longer. Now I am waiting already more than 10 minutes to make 
Mathematica calculate the very first operation, which is now 1+1. This 
is definitely more than the first operation typically took previously. 

If during the evaluation of this first operation I break the 
calculation, and then start it again, the first operation takes 
approximately same long time (around 10 to 15 min). It is independent of 
how I do it: by AbortEvaluation followed by closing Mathematica, or just 
by a direct closing Mathematica.

After the first operation has been executed, all others run as usually, 
that is fast. If after the first operation has been executed to the end 
I switch Mathematica off and then start it once more, the first 
operation in the new session will be done fast.

Have you met such a behavior? What can I do against it?

Best regards, Alexei

-- 
Alexei Boulbitch, Dr. habil.
Senior Scientist
Material Development

IEE S.A.
ZAE Weiergewan
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Luxembourg

Tel: +352 2454 2566
Fax: +352 2454 3566
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e-mail: alexei.boulbitch at iee.lu

www.iee.lu

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