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Re: Mathematica 8

  • To: mathgroup at smc.vnet.net
  • Subject: [mg114083] Re: Mathematica 8
  • From: Curtis Osterhoudt <cfo at lanl.gov>
  • Date: Tue, 23 Nov 2010 05:58:25 -0500 (EST)

No troubles.

The laptop is a Lenovo ThinkPad T500 (they're no longer produced, having been superceded by the T510). They have an integrated Intel graphics chip, and also a discrete ATI graphics card (one can force switches between these in the BIOS, and also linux and Windows allow switching within the OS, though I haven't tried that). 

They're good laptops; I've run pretty intensive things on them both in Windows XP and linux, though I tend to boot only into linux, and run Mathematica 8 (and 7 and 6) on the linux partitions, so I'm not 100% sure how M version 8 will behave in Windows (I do have a home-built desktop running Windows 7 and Mathematica 8 works fine). 

        Hope that helps a little, 
                                   Curtis



On Monday, November 22, 2010 11:04:54 J and B wrote:
> Sorry to butt in, but I noticed that you have an Lenovo laptop.  I am
> getting one, but I don't know what I need in order to run M8 on it.  I will
> be using going version of windows on it.  
> 
> I had to get another desktop 3 years ago, an Lenovo just to run version 7.
> My IBM desktop could not handle M7. 
> 
> Thanks 
> 
> -----Original Message-----
> From: Curtis F. Osterhoudt [mailto:cfo at lanl.gov] 
> Sent: Monday, November 22, 2010 7:36 AM
> To: mathgroup at smc.vnet.net
> Subject: [mg114047] Re: Mathematica 8
> 
> Interesting. I decided to play with this too (on a Lenovo notebook with two
> cores, running a 32-bit linux). If I choose to have Mathematica fire up
> another kernel "as needed", things run fine. However, if I ask it to start
> two kernels "on startup", the Benchmark runs for a long time (I haven't let
> it complete yet) and pegs both cores at around 100%. It also prints no
> output. Perhaps a bug?
> 
> 
> 
> 
> 
> >> Could you elaborate a bit on this? I thought to make use of more than 
> >> one core I needed to use commands like Parallelize. Are modifying the 
> >> benchmarking code?
> >
> > No ... I just selected to launch parallel kernels on startup of 
> > Mathematica 8 in Mathematica Preferences.
> >
> > Then I just ran MathematicaMark8 with no code modifications to see 
> > what happened.
> 
> 
> 
> 


-- 
==================================
Curtis Osterhoudt
cfo at remove_this.lanl.and_this.gov
==================================


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