From vpopov@pacbell.net Sun Aug 13 10:48:45 1995
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!pacbell!vpopov
From: vpopov@pacbell.net (Valeria Popov)
Newsgroups: comp.sys.m68k
Subject: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Aug13.104845.7780@pacbell.net>
Date: Sun, 13 Aug 1995 10:48:45 GMT
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Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882).

By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes.
Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow.

I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector.

-- 
=== Valeria Popov ===
Dept of Electrical Engineering, Pacific Bell Internet Services
"There are 14 nodes and only 10 countries. Count again."

From asuzuki@cern.ch Sun Aug 13 22:13:45 1995
Path: ashpoly!bigsur!pacrim!krgate!eunha!cern!asuzuki
From: asuzuki@cern.ch (Amy Suzuki)
Newsgroups: comp.sys.m68k
Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Aug13.221345.6363@cern.ch>
Date: Sun, 13 Aug 1995 22:13:45 GMT
References: <1995Aug13.104845.7780@pacbell.net>
Organization: European Laboratory for Particle Physics, Geneva
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In article <1995Aug13.104845.7780@pacbell.net>, vpopov@pacbell.net (Valeria Popov) writes:
> Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882).

The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds.

-- 
Amy Suzuki
Tape trading list upon request. SASE required for international mail.