From apopov@cern.ch Sat Jun 03 22:37:12 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!cern!apopov From: apopov@cern.ch (Amy Popov) Newsgroups: comp.sys.m68k Subject: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jun03.223712.7793@cern.ch> Date: Sat, 03 Jun 1995 22:37:12 GMT Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: Netscape 1.1N Lines: 11 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. I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector. -- Amy Popov *PLONK* filter active for trolls. Macintosh IIfx - NetBSD 1.0 From ejohansson@earthlink.net Mon Jun 05 07:03:12 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!earthlink!ejohansson From: ejohansson@earthlink.net (Elaine Johansson) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jun05.070312.1555@earthlink.net> Date: Mon, 05 Jun 1995 07:03:12 GMT References: <1995Jun03.223712.7793@cern.ch> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1995Jun03.223712.7793@cern.ch>, apopov@cern.ch (Amy Popov) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Elaine Johansson Tape trading list upon request. SASE required for international mail.