Re: Mathematica 7.0 slow on OS X
- To: mathgroup at smc.vnet.net
- Subject: [mg93778] Re: Mathematica 7.0 slow on OS X
- From: jsk618 at gmail.com
- Date: Tue, 25 Nov 2008 07:19:45 -0500 (EST)
- References: <ggdqpu$k0$1@smc.vnet.net>
On Nov 24, 4:06 am, "Matthias Gottschalk" <mg... at gfz-potsdam.de> wrote: > I just tried Mathematica 7.0 > > In comparison to Mathematica 6.0.3, 7.0 seems to be by > factor of 2 slower under OS X. > When I run the "Mathematica Benchmark Test Mathematica 6.0" from > Karl UnterKofler I get for > > Mathematica 6.0.3: Benchmark = 0.97038 > > and for > > Mathematica 7.0: Benchmark = 0.471266 > > The numbers obtained by Mathematica#s own > BenchmarkReport[] are comparable, however: 1.88 vs. 1.91. > > If 7.0 is really so much slower on a Mac as indicated by > the UnterKofler test, then is hardly good news. > > So, what is your experience? > > Matt > > (numbers were generated on a MacBook Pro 2.2 GHz Intel > Core 2 Duo, OS X 10.5.5) I am having similar results with Mathematica 7 on Windows XP (HP laptop, AMD Athlon 64 2.2GHz, 1.25 GB RAM) Version 6.0.1: Benchmark = .649 Version 7.0.0: Benchmark = .326 The main culprit is the next-to-last test (Binomial[m, k]) which jumps from 25.4s to 376.7s. Since the first 10 tests show an improvement and 4 of the last 5 are slower, I suspected a memory problem. However, free memory never drops below 300MB during the test, and there is essentially no disk activity, so it's not a lack of physical memory but probably an issue with Mathematica itself. Also, the results with MathematicaMark seem dismal, lower than several computers which should be slower. I do not currently have Version 6 installed to compare it to, though. John Keith
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- From: Devendra Kapadia <dkapadia@wolfram.com>
- Re: Re: Mathematica 7.0 slow on OS X