From tsato@panix.com Tue Jun 20 14:09:34 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!panix!tsato From: tsato@panix.com (Thiago Sato) Newsgroups: comp.sys.m68k Subject: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jun20.140934.1460@panix.com> Date: Tue, 20 Jun 1995 14:09:34 GMT Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com 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. -- Thiago Sato "Do not worship the copy." Mac IIci / 68882 FPU / AmigaOS 3.1 From aperez@cam.ac.uk Wed Jun 21 12:17:34 1995 Path: ashpoly!cascade!transat!ukc!fennimore!cam!aperez From: aperez@cam.ac.uk (Andrei Pérez) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jun21.121734.1082@cam.ac.uk> Date: Wed, 21 Jun 1995 12:17:34 GMT References: <1995Jun20.140934.1460@panix.com> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Jun20.140934.1460@panix.com>, tsato@panix.com (Thiago Sato) 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. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Andrei Pérez Practical Peripherals 14.4 @ 14,400 bps "A soul is not exclusive to biology." From scampbell@kiae.su Thu Jun 22 19:02:34 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!kiae!scampbell From: scampbell@kiae.su (Sun-mi Campbell) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jun22.190234.3539@kiae.su> Date: Thu, 22 Jun 1995 19:02:34 GMT References: <1995Jun20.140934.1460@panix.com> <1995Jun21.121734.1082@cam.ac.uk> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Jun21.121734.1082@cam.ac.uk>, aperez@cam.ac.uk (Andrei Pérez) 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. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Sun-mi Campbell -- Kurchatov Institute of Atomic Energy, Moscow "5 sigma is a discovery. 7 is a question." From ckowalski@cam.ac.uk Sat Jun 24 02:21:34 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!cam!ckowalski From: ckowalski@cam.ac.uk (Callum Kowalski) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jun24.022134.1844@cam.ac.uk> Date: Sat, 24 Jun 1995 02:21:34 GMT References: <1995Jun20.140934.1460@panix.com> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Jun20.140934.1460@panix.com>, tsato@panix.com (Thiago Sato) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- === Callum Kowalski === Dept of Electrical Engineering, University of Cambridge Computer Laboratory "In theory there is no difference between theory and practice." From jduarte@u-tokyo.ac.jp Mon Jun 26 03:24:34 1995 Path: ashpoly!cascade!mxgate!coyoacan!u-tokyo!jduarte From: jduarte@u-tokyo.ac.jp (Jen Duarte) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jun26.032434.6127@u-tokyo.ac.jp> Date: Mon, 26 Jun 1995 03:24:34 GMT References: <1995Jun20.140934.1460@panix.com> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Jun20.140934.1460@panix.com>, tsato@panix.com (Thiago Sato) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- === Jen Duarte === Dept of Electrical Engineering, University of Tokyo Department of Information Science "There are 14 nodes and only 10 countries. Count again."