From spetrov@cmu.edu Sun May 05 13:27:18 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!cmu!spetrov From: spetrov@cmu.edu (Seo-yeon Petrov) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May05.132718.7114@cmu.edu> Date: Sun, 05 May 1996 13:27:18 GMT Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: WinVN 0.99.5 Lines: 11 Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions. By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes. I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector. -- Seo-yeon Petrov *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0 From nandersson@ox.ac.uk Tue May 07 08:29:18 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!ox!nandersson From: nandersson@ox.ac.uk (Nadine Andersson) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May07.082918.7849@ox.ac.uk> Date: Tue, 07 May 1996 08:29:18 GMT References: <1996May05.132718.7114@cmu.edu> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1996May05.132718.7114@cmu.edu>, spetrov@cmu.edu (Seo-yeon Petrov) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Nadine Andersson Tape trading list upon request. SASE required for international mail. From hlee@utexas.edu Tue May 07 17:11:18 1996 Path: ashpoly!cascade!mxgate!coyoacan!utexas!hlee From: hlee@utexas.edu (Hugo Lee) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May07.171118.9081@utexas.edu> Date: Tue, 07 May 1996 17:11:18 GMT References: <1996May05.132718.7114@cmu.edu> <1996May07.082918.7849@ox.ac.uk> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1996May07.082918.7849@ox.ac.uk>, nandersson@ox.ac.uk (Nadine Andersson) writes: > Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Hugo Lee Tape trading list upon request. SASE required for international mail. From stakahashi@earthlink.net Thu May 09 03:23:18 1996 Path: ashpoly!cascade!brgate!saturno!earthlink!stakahashi From: stakahashi@earthlink.net (Sun-mi Takahashi) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May09.032318.3833@earthlink.net> Date: Thu, 09 May 1996 03:23:18 GMT References: <1996May05.132718.7114@cmu.edu> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996May05.132718.7114@cmu.edu>, spetrov@cmu.edu (Seo-yeon Petrov) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Sun-mi Takahashi Opinions expressed are solely my own and not those of EarthLink Network. ------------------------------------------------------------ From mvasiliev@demon.co.uk Fri May 10 03:50:18 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!demon!mvasiliev From: mvasiliev@demon.co.uk (Mathieu Vasiliev) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May10.035018.8367@demon.co.uk> Date: Fri, 10 May 1996 03:50:18 GMT References: <1996May05.132718.7114@cmu.edu> <1996May07.082918.7849@ox.ac.uk> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996May07.082918.7849@ox.ac.uk>, nandersson@ox.ac.uk (Nadine Andersson) writes: > Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Mathieu Vasiliev Opinions expressed are solely my own and not those of Demon Internet Services UK. ------------------------------------------------------------