Re: Is Mathematica on a PC Too Slow?
- To: mathgroup at smc.vnet.net
- Subject: [mg7083] Re: Is Mathematica on a PC Too Slow?
- From: karl at faepds01.tu-graz.ac.at (karl unterkofler)
- Date: Wed, 7 May 1997 01:58:10 -0400 (EDT)
- Organization: TU Graz
- Sender: owner-wri-mathgroup at wolfram.com
In article <5k9fqh$m2c at smc.vnet.net>, Dave Smith <buyguy at erols.com> wrote: > Dear Newsgroup, > > I have Mathematica 3.0 installed on a Mac IIvx with a math coprocessor > and System 7.5 with 20 MB RAM, but I'm interested in timing for other > personal computing systems as well. > > I have tried to benchmark the time required for some common tasks to > decide if this software in a personal computer environment can support > a system dynamics and controls R&D consultancy. > > Here's what I found so far: > NDSolve on a linear, 2nd order, time invariant equation takes 40 > seconds to compute 30 seconds of simulated time. Real system > simulations are often nonlinear and of higher order. I have visions > of this taking hours on my Mac, if it can be done at all. > Neither Eliminate nor Solve can handle the mild, low-order > nonlinear equations common in modeling gas turbines...no errors, no > messages, they simply don't work. I'm also interested in robot > manipulator dynamics, but these are more difficult yet so I'm not at > all optimisitic. I think timing[10001!][] will take about 100 seconds on a IIcx Todays machines are below 1 sec. Power Tower Pro 225: 0.783 sec Pentium pro 200(linux): 1.04 sec Karl U.