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MathGroup Archive 1991

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Comparing speeds of 1.2 and 2.0!

  • To: mathgroup at yoda.physics.unc.edu
  • Subject: Comparing speeds of 1.2 and 2.0!
  • From: "Mr. Mathematica Man" <LWRIGHT at hmcvax.claremont.edu>
  • Date: Sat, 21 Sep 1991 23:46 PDT

I performed the following tests comparing version 1.2 and version 2.0 of
Mathematica after Barry Merriman's recent post to the newsgroup.  I performed
on two different machines and for different numbers of multiplications.  In all
cases, version 2.0 was faster for me.  It is possible that there is something
special with the NeXT and its new operating system.

Problem:
Timing[Block[{x=1.00001,y=1.0000},Do[y *= x, {n}];y]]

Results

Machine - Macintosh IIcx

n	1.2f33 (s)	2.0 (s)
1000	5.16667		4.68333
10000	51.2833		41.2667
100000	524.067		435.65


Machine - DECstation 3100 running ULTRIX

n	1.2 (s)		2.0beta3 (s)
1000	.85		.7
10000	8.43333		.708333
100000	84.3333		70.45


Lyle Wright
Mathematica Consultant
Harvey Mudd College
Claremont, CA 91711
lwright at hmcvax.claremont.edu





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