From fdubois@pacbell.net Fri Nov 15 11:44:55 1996 Path: ashpoly!cascade!bigsur!pacbell!fdubois From: fdubois@pacbell.net (Fiona Dubois) Newsgroups: comp.sys.m68k Subject: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Nov15.114455.4318@pacbell.net> Date: Fri, 15 Nov 1996 11:44:55 GMT Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 Lines: 10 Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. 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. Anyone running this on a Quadra 840AV with the 68040? -- Fiona Dubois Tape trading list upon request. SASE required for international mail. From eweber@utexas.edu Sat Nov 16 08:42:55 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!utexas!eweber From: eweber@utexas.edu (Elaine Weber) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Nov16.084255.1056@utexas.edu> Date: Sat, 16 Nov 1996 08:42:55 GMT References: <1996Nov15.114455.4318@pacbell.net> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 12 In article <1996Nov15.114455.4318@pacbell.net>, fdubois@pacbell.net (Fiona Dubois) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. > By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes. 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. -- Elaine Weber "The hatch is open. Is anyone listening?" Amiga 3000T / System 7.5.1 From rweber@titech.ac.jp Sun Nov 17 20:34:55 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!titech!rweber From: rweber@titech.ac.jp (Raj Weber) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Nov17.203455.3072@titech.ac.jp> Date: Sun, 17 Nov 1996 20:34:55 GMT References: <1996Nov15.114455.4318@pacbell.net> <1996Nov16.084255.1056@utexas.edu> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Nov16.084255.1056@utexas.edu>, eweber@utexas.edu (Elaine Weber) 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. -- === Raj Weber === Dept of Electrical Engineering, Tokyo Institute of Technology Computer Centre "5 sigma is a discovery. 7 is a question." From fsantos@mindspring.com Mon Nov 18 23:45:55 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!mindspring!fsantos From: fsantos@mindspring.com (Fiona Santos) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Nov18.234555.9151@mindspring.com> Date: Mon, 18 Nov 1996 23:45:55 GMT References: <1996Nov15.114455.4318@pacbell.net> <1996Nov16.084255.1056@utexas.edu> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: Netscape 1.1N Lines: 9 In article <1996Nov16.084255.1056@utexas.edu>, eweber@utexas.edu (Elaine Weber) 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. -- Fiona Santos "Hold for relay." Atari Falcon 030 / TOS 4.04