From gtanaka@illinois.edu Wed Nov 08 11:00:13 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!illinois!gtanaka From: gtanaka@illinois.edu (Göran Tanaka) Newsgroups: comp.sys.m68k Subject: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Nov08.110013.8776@illinois.edu> Date: Wed, 08 Nov 1995 11:00:13 GMT Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. 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. -- Göran Tanaka Hayes Optima 288 @ 19,200 bps "Measuring a record you own is listening, not piracy." From ntakahashi@mindspring.com Wed Nov 08 19:04:13 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!mindspring!ntakahashi From: ntakahashi@mindspring.com (Nadine Takahashi) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Nov08.190413.7629@mindspring.com> Date: Wed, 08 Nov 1995 19:04:13 GMT References: <1995Nov08.110013.8776@illinois.edu> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: TIN [version 1.2 PL2] Lines: 12 In article <1995Nov08.110013.8776@illinois.edu>, gtanaka@illinois.edu (Göran Tanaka) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). > Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Nadine Takahashi | ntakahashi@mindspring.com PGP Key fingerprint: 5C22 7FE5 CF00 7F13 "Keep the channels open."