From ksantos@uu.net Mon Jan 02 18:06:54 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!uu!ksantos From: ksantos@uu.net (Kirsty Santos) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan02.180654.7675@uu.net> Date: Mon, 02 Jan 1995 18:06:54 GMT Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: WinVN 0.99.5 Lines: 10 Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions. Anyone running this on a Quadra 840AV with the 68040? -- Kirsty Santos -- UUNET Technologies, Falls Church VA "The carrier frequency does not drift by accident." From yfischer@titech.ac.jp Tue Jan 03 12:51:54 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!titech!yfischer From: yfischer@titech.ac.jp (Yuki Fischer) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan03.125154.8120@titech.ac.jp> Date: Tue, 03 Jan 1995 12:51:54 GMT References: <1995Jan02.180654.7675@uu.net> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1995Jan02.180654.7675@uu.net>, ksantos@uu.net (Kirsty Santos) 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. PGP Public key available via finger or upon request. -- Yuki Fischer *PLONK* filter active for trolls. Sun SparcStation 20 - NetBSD 1.0 From yhernandez@titech.ac.jp Tue Jan 03 20:49:54 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!titech!yhernandez From: yhernandez@titech.ac.jp (Yuki Hernández) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan03.204954.4952@titech.ac.jp> Date: Tue, 03 Jan 1995 20:49:54 GMT References: <1995Jan02.180654.7675@uu.net> <1995Jan03.125154.8120@titech.ac.jp> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: Netscape 1.1N Lines: 11 In article <1995Jan03.125154.8120@titech.ac.jp>, yfischer@titech.ac.jp (Yuki Fischer) writes: > The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. If you are posting from AOL, please read RFC 1036 before posting again. -- Yuki Hernández "5 sigma is a discovery. 7 is a question." Atari TT030 / Linux 1.2.13 From cschneider@cmu.edu Wed Jan 04 18:36:54 1995 Path: ashpoly!cascade!bigsur!cmu!cschneider From: cschneider@cmu.edu (Camila Schneider) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan04.183654.9180@cmu.edu> Date: Wed, 04 Jan 1995 18:36:54 GMT References: <1995Jan02.180654.7675@uu.net> <1995Jan03.125154.8120@titech.ac.jp> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Jan03.125154.8120@titech.ac.jp>, yfischer@titech.ac.jp (Yuki Fischer) writes: > The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. > PGP Public key available via finger or upon request. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Camila Schneider | cschneider@cmu.edu PGP Key fingerprint: 06DE EF38 BB9E E679 "Keep the channels open." From rnakamura@kiae.su Wed Jan 04 20:40:54 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!kiae!rnakamura From: rnakamura@kiae.su (Rodrigo Nakamura) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan04.204054.1290@kiae.su> Date: Wed, 04 Jan 1995 20:40:54 GMT References: <1995Jan02.180654.7675@uu.net> <1995Jan03.125154.8120@titech.ac.jp> <1995Jan04.183654.9180@cmu.edu> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1995Jan04.183654.9180@cmu.edu>, cschneider@cmu.edu (Camila Schneider) writes: > Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Rodrigo Nakamura Tape trading list upon request. SASE required for international mail.