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MathGroup Archive 2007

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Re: Fwd: Re: subscribe

  • To: mathgroup at smc.vnet.net
  • Subject: [mg73232] Re: [mg73202] Fwd: Re: subscribe
  • From: Benedetto Bongiorno <bbongiorno at attglobal.net>
  • Date: Thu, 8 Feb 2007 03:39:48 -0500 (EST)
  • References: <200702071038.FAA04700@smc.vnet.net>

I am running on two dual core AMD Opteron  2.8GHz  in XP 64 bit.
You need to individually assign each of the four processors to a notebook.
Wolfram has a parallel software package.

Pava wrote:
> Hi:
>   
>   I would like to ask for your help from those who actually use quad core machines with Mathematica. 
>   
>   1. More specifically, I would like to know what experiences other  academic users have on running Mathematica on Quad Core Linux. And  also, is it difficult to set up and get it running?  At this stage  any comment is valuable from those who have it all working nicely? 
>   
>   2. I got the following negative general comment on running  multi-processor for paralel computing. "The parallization is done at  the beginning of the run. So,
>   if you tell the program (or the program finds) there are 4 cores  available at the start of the program, it grabs them and assumes they  will be available exclusively to the program. If a second user logs in  and tries to run something, processing speed will be terrible." Is this  also the case with the Mathematica Quad Core combination? 
>   
>   Thank you very much for all your help. 
>   
>   Damba.
>
>  
> ---------------------------------
> TV dinner still cooling?
> Check out "Tonight's Picks" on Yahoo! TV.
>
>
>
>   



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