Re: surprising comparison of Mathematica 5.2 and 7.0
- To: mathgroup at smc.vnet.net
- Subject: [mg111219] Re: surprising comparison of Mathematica 5.2 and 7.0
- From: juan flores <juanfie at gmail.com>
- Date: Sat, 24 Jul 2010 05:05:44 -0400 (EDT)
- References: <i293uc$mck$1@smc.vnet.net> <i2btci$bco$1@smc.vnet.net>
On a Mac, -------- 7.0 for Mac OS X x86 (64-bit) (November 11, 2008) c[4]=-(38475/16384) time=6.2792 memory=140.069 MB -------- Results depend on how busy your computer is. The above results were gotten on a fresh kernel running nothing else, but Mathematica. Also, TimeUsed[] gives the total number of seconds of CPU time used so far in the current Mathematica session. So, results will vary if you run it twice or later on a non-fresh kernel session. Just some thoughts. Juan On Jul 23, 6:11 am, "Bruno Campanini" <bruno... at libero.it> wrote: > "mathfanda" <KKra... at seznam.cz> wrote in message > > news:i293uc$mck$1 at smc.vnet.net... > > > Dear Mathematica friends, > > > the following program runs 4.7 times faster and uses 22.7 times less > > memory > > in Mathematica 5.2 than in Mathematica 7.0. > > Fortunately, it gives the same result. > > [...] > > My results: > > 7.0 for Microsoft Windows (64-bit) (November 11, 2008) > c[4]=-(38475/16384) > time=24.217 > memory=142.09 MB > > Winserver 2008 R2 64-bit, 4Gb RAM > > Very bad indeed! > > Bruno