From: "David McClain" <barabh@qwest.net>
To: "David Gurr" <gurr@mrs.med.ge.com>, <caml-list@inria.fr>
Subject: Re: FFTW, Re: [Caml-list] Array Optimizations
Date: Thu, 8 Nov 2001 16:23:31 -0700 [thread overview]
Message-ID: <01c601c168ac$618f00f0$210148bf@dylan> (raw)
In-Reply-To: <200111082306.PAA27217@mrs.mrs.med.ge.com>
It would be interesting to compare FFTW's performance with the library that
I use for paralellized 2-D and 1-D FFT's written by Intel for the Pentium
architecture. I just ran a test of this based on comparisons from the Clean
list where they showed implementations ranging from 2 sec to 7 sec on a Sun
750 MHz (64 bit?). I ran my 1024 x 1024 2-D FFT on a Pentium II 350 MHz
single CPU under Win/NT 4.0 (SP6) and got times around 1.17 sec. (estimates
for the Sun workstation would be approx 4x speedup).
- DM
----- Original Message -----
From: "David Gurr" <gurr@mrs.med.ge.com>
To: <caml-list@inria.fr>; <barabh@qwest.net>
Sent: Thursday, November 08, 2001 4:06 PM
Subject: FFTW, Re: [Caml-list] Array Optimizations
> The core of FFTW is a compiler written in Ocaml that generates
> C code. It could be retargeted to gen Ocaml or Ocaml's intermediate
> language Cmm. -D
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next prev parent reply other threads:[~2001-11-09 8:39 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-08 23:06 David Gurr
2001-11-08 23:23 ` David McClain [this message]
2001-11-09 9:16 ` Markus Mottl
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