Re: Mathematica 8

*To*: mathgroup at smc.vnet.net*Subject*: [mg114092] Re: Mathematica 8*From*: Curtis Osterhoudt <cfo at lanl.gov>*Date*: Tue, 23 Nov 2010 06:00:11 -0500 (EST)

Hi, Jake, I don't mind at all. I think I have 4 GiB of RAM in my Lenovo laptops, dual core, but I don't have a 64 bit processor (only 32). I suspect, though (only suspect!) that things will run very well in your setup, as long as you don't have to do REALLY memory-intensive calculations. Best wishes! Curtis On Monday, November 22, 2010 14:53:17 J and B wrote: > Thanks Curtis for the answering my question. One more if you don't mind. > With my IBM I only had 512 ram, in my Lenovo I have 4 gig, and duel core, 64 > bit. With this be ok with a lap top using the new Mathematica? > > Thanks once again and Happy Thanksgiving > Jake > > -----Original Message----- > From: Curtis Osterhoudt [mailto:cfo at lanl.gov] > Sent: Monday, November 22, 2010 1:11 PM > To: mathgroup at smc.vnet.net > Cc: J and B > Subject: Re: [mg114047] Re: Mathematica 8 > > 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 been superceded by the T510).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 > ================================== > > -- ================================== Curtis Osterhoudt cfo at remove_this.lanl.and_this.gov ==================================