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Subject: Re: a number and two questions for bob

Author: martin fierz

Date: 02:39:54 05/06/04

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On May 05, 2004 at 18:24:11, Robert Hyatt wrote:

[snip]

>I see 16-cpu speedups vary from 6.0 to 15.3.  That is not "very small
>variability" if we are talking about the same thing.

we are not talking about the same thing because very clearly i was talking about
the 4CPU test.

> The numbers are all over
>the chart, just like current parallel numbers are with Crafty...

so be it - that's fine with me, because that will all become part of the
standard deviation and the standard error....
in the end, perhaps you get a number which says

speedup(4) = 3.1 +- 0.4

don't you realize that this is a much more valuable result than

speedup(4) = 3.1 ??

whatever it is, just post those numbers you just posted for DTS for crafty (and
vincent and GCP should post their numbers giving 2.8 and 3.0 too), then we can
calculate the stats, and see whether this is just a random noise thing or rather
a statistically significant effect.

which would finally stop this fruitless discussion...

cheers
  martin



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