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MathGroup Archive 2012

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Could someone help optimize this for Mathematica 9?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg128929] Could someone help optimize this for Mathematica 9?
  • From: "McHale, Paul" <Paul.McHale at excelitas.com>
  • Date: Tue, 4 Dec 2012 04:14:10 -0500 (EST)
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  • Delivered-to: l-mathgroup@wolfram.com
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We have a strong need to view large numbers of data points.  Mathematica 8 was excellent at this.  The following code executed under both 8 and 9 (Windows):

Mathematica 8: Less than 0.5 seconds
Mathematica 9: Greater than 4 seconds

mNumberSamples=100000;
mFrequency=10;
m=Table[{t/mNumberSamples ,Sin[t/mNumberSamples mFrequency*2 \[Pi]]}*1.0,{t,1,mNumberSamples}];mStartTime=SessionTime[];
ListLinePlot[m]
mStopTime=SessionTime[];
StringForm["Elapsed time = ``", N[mStopTime-mStartTime]]

I have tried the code on a slower mac laptop (version 9 only) and had the same slower results.  Any input welcome as this functionality is extremely important to us.


Paul McHale  |  Electrical Engineer, Energetics Systems  |  Excelitas Technologies Corp.
                         
                         
                         
                         
           
Phone:   +1 937.865.3004   |   Fax:  +1 937.865.5170   | Mobile:   +1 937.371.2828
1100 Vanguard Blvd, Miamisburg, Ohio 45342-0312 USA
Paul.McHale at Excelitas.com
www.excelitas.com






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