From rmacdonald@pipeline.com Sun Jul 07 02:03:43 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!pipeline!rmacdonald From: rmacdonald@pipeline.com (Raj MacDonald) Newsgroups: comp.sys.m68k Subject: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jul07.020343.9713@pipeline.com> Date: Sun, 07 Jul 1996 02:03:43 GMT Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: Netscape 1.1N Lines: 10 Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions. 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? -- Raj MacDonald Tape trading list upon request. SASE required for international mail. From gweber@illinois.edu Tue Jul 09 02:15:43 1996 Path: ashpoly!cascade!bigsur!illinois!gweber From: gweber@illinois.edu (Göran Weber) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jul09.021543.2844@illinois.edu> Date: Tue, 09 Jul 1996 02:15:43 GMT References: <1996Jul07.020343.9713@pipeline.com> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Jul07.020343.9713@pipeline.com>, rmacdonald@pipeline.com (Raj MacDonald) 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. -- Göran Weber *PLONK* filter active for trolls. PC-9821Ap2 (NEC) - NetBSD 1.0 From aschneider@clari.net Wed Jul 10 12:07:43 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!clari!aschneider From: aschneider@clari.net (Anja Schneider) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jul10.120743.2102@clari.net> Date: Wed, 10 Jul 1996 12:07:43 GMT References: <1996Jul07.020343.9713@pipeline.com> <1996Jul09.021543.2844@illinois.edu> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Jul09.021543.2844@illinois.edu>, gweber@illinois.edu (Göran 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. -- === Anja Schneider === Dept of Electrical Engineering, ClariNet Communications Corp "They will send a copy in my place."