From jmacdonald@hanse.de Sun Jan 21 12:53:48 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!hanse!jmacdonald From: jmacdonald@hanse.de (Jen MacDonald) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jan21.125348.1042@hanse.de> Date: Sun, 21 Jan 1996 12:53:48 GMT Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: WinVN 0.99.5 Lines: 10 Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). 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? -- Jen MacDonald -- Hanse-Netzwerk Hamburg "There are 14 nodes and only 10 countries. Count again." From flarsson@hanse.de Mon Jan 22 21:53:48 1996 Path: ashpoly!cascade!mxgate!coyoacan!hanse!flarsson From: flarsson@hanse.de (Fiona Larsson) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jan22.215348.4418@hanse.de> Date: Mon, 22 Jan 1996 21:53:48 GMT References: <1996Jan21.125348.1042@hanse.de> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Jan21.125348.1042@hanse.de>, jmacdonald@hanse.de (Jen MacDonald) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). > 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. -- Fiona Larsson Tape trading list upon request. SASE required for international mail. From hokonkwo@pipeline.com Wed Jan 24 14:43:48 1996 Path: ashpoly!cascade!brgate!saturno!pipeline!hokonkwo From: hokonkwo@pipeline.com (Heather Okonkwo) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jan24.144348.3068@pipeline.com> Date: Wed, 24 Jan 1996 14:43:48 GMT References: <1996Jan21.125348.1042@hanse.de> <1996Jan22.215348.4418@hanse.de> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Jan22.215348.4418@hanse.de>, flarsson@hanse.de (Fiona Larsson) 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. -- Heather Okonkwo US Robotics Courier V.34 @ ISDN 64k bps "Do not worship the copy." From bito@netcom.com Fri Jan 26 05:29:48 1996 Path: ashpoly!cascade!mxgate!coyoacan!netcom!bito From: bito@netcom.com (Brian Ito) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jan26.052948.9076@netcom.com> Date: Fri, 26 Jan 1996 05:29:48 GMT References: <1996Jan21.125348.1042@hanse.de> <1996Jan22.215348.4418@hanse.de> <1996Jan24.144348.3068@pipeline.com> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Jan24.144348.3068@pipeline.com>, hokonkwo@pipeline.com (Heather Okonkwo) writes: > The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Brian Ito Opinions expressed are solely my own and not those of NETCOM On-Line Communication Services. ------------------------------------------------------------