Re: Favorite FFTs (was 'Re: 2d dft phase info')

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#476

From: Michael van Elst
Date: Wed, 09 Sep 1992 18:43

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In <1992Sep9.083621.7140@mcclb0.med.nyu.edu> smith@mcclb0.med.nyu.edu writes:
>> 512x512 float -> 256x512 complex in 4.3 sec on a DECStation 5000/200,
>Its good... (less than 3 secs for 512x512 reals on a DECstation 5000/240)

Seems that both routines keep the FP pipeline busy and use about the same
number of operations (the 5000/240 runs at 40MHZ, the 5000/200 runs at 25MHZ).

Regards,
-- 
Michael van Elst
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<9209011949.AA19843@hp-and.an.hp.com> <1992Sep2.194306.2275@mpifr-bonn.mpg.de> <1992Sep7.110102.25536@bnr.co.uk> <1992Sep8.232448.14932@mpifr-bonn.mpg.de> <1992Sep9.083621.7140@mcclb0.med.nyu.edu>

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From: mlelstv@specklec.mpifr-bonn.mpg.de (Michael van Elst)
Subject: Re: Favorite FFTs (was 'Re: 2d dft phase info')
Message-ID: <1992Sep9.184300.1386@mpifr-bonn.mpg.de>
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References: <9209011949.AA19843@hp-and.an.hp.com> <1992Sep2.194306.2275@mpifr-bonn.mpg.de> <1992Sep7.110102.25536@bnr.co.uk> <1992Sep8.232448.14932@mpifr-bonn.mpg.de> <1992Sep9.083621.7140@mcclb0.med.nyu.edu>
Date: Wed, 9 Sep 1992 18:43:00 GMT
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