PSN-L Email List Message

Subject: Re: Digest from 07/17/2007 00:01:20
From: "Geoffrey" gmvoeth@...........
Date: Tue, 24 Jul 2007 01:12:25 -0700

Hello All;

I just ran a Compiled fft routine on a 3GHz Pentium4
machine with 3G ram under WINXP-PRO and it ran
slower then on my WIN98SE Presario 5528
with a 75MHz plain old pentium running in MSDOS mode.
Now one machine is 40 times faster then
the other but there was little difference
in run time between the two ??

Does anyone know how to make a MSDOS
program run full speed on a Windows XP machine ???

It seems somethings throttling the speed back
and i would greatly like to change that.

When I get A-Round-Tuit I will boot my
WINXP machine with MSDOS and try
running the program there but I would really
rather use windows.


----- Original Message ----- 
From: "Randall Peters" 
Sent: Saturday, July 21, 2007 17:04
Subject: Re: Digest from 07/17/2007 00:01:20

> Thanks, Bob.  I did eventually realize my failure to mention 'x' to
> terminate and 'r' to rerun.
>   Randall
> Bobhelenmcclure@....... wrote:
>>  Hi Randall,   I tried out your QuickBasic program using the compiled
>> program and running from the source code. Changing the file name is
>> not necessary, so long as you enter the complete name.   You neglected
>> to tell users what keys to use to re-run or terminate the
>> program. Cheers, Bob ~~~~~~~~~~Original Message~~~~~~~~~~~Subject: Re:
>> Digest from 07/17/2007 00:01:20
>> From: Randall Peters PETERS_RD@..........
>> Date: Thu, 19 Jul 2007 11:52:05 -0400 Because of  the recent interest
>> in FFT's, I have posted some files on my webpage at
>>   The pdf's should help those of you who have been wondering how the
>> Fourier transform works and why the Cooley-Tukey form (Fast version)
>> is SO MUCH better than the discrete FT (for which there is much
>> needless, repetitive calculations).
>>   The executable can be downloaded (I promise that it is safe to use)
>> and some data files have been posted to the site so that you can run
>> test cases.  test and test 2 are pure sine signals, one with a period
>> of 17 s and the other 1000 s.  The 0704 file is a record of the
>> Solomon Islands EQ recorded wtih Larry Cochrane's VolksMeter.  Before
>> you can use the files you must rename your saved version (*.txt) to
>> *.dat.  This suffix must be typed in along with the filename when you
>> are prompted for the input file.
>> -----------------------------------------------------------------------
>> Get a sneak peek of the all-new

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