From shernandez@uni-hamburg.de Tue May 02 01:02:52 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!uni-hamburg!shernandez From: shernandez@uni-hamburg.de (Seo-yeon Hernández) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995May02.010252.3353@uni-hamburg.de> Date: Tue, 02 May 1995 01:02:52 GMT Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions. Make sure you install the 32-bit Enabler on older IIci machines running System 7.1! -- Seo-yeon Hernández "Tape doesn't lie at 02:14. Ears do." Acorn RiscPC 600 / System 7.5.1 From gpetrov@hanse.de Tue May 02 08:59:52 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!hanse!gpetrov From: gpetrov@hanse.de (Graham Petrov) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995May02.085952.1114@hanse.de> Date: Tue, 02 May 1995 08:59:52 GMT References: <1995May02.010252.3353@uni-hamburg.de> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995May02.010252.3353@uni-hamburg.de>, shernandez@uni-hamburg.de (Seo-yeon Hernández) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. > 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. -- Graham Petrov Tape trading list upon request. SASE required for international mail. From tkang@kiae.su Thu May 04 12:36:52 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!kiae!tkang From: tkang@kiae.su (Tomas Kang) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995May04.123652.8531@kiae.su> Date: Thu, 04 May 1995 12:36:52 GMT References: <1995May02.010252.3353@uni-hamburg.de> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1995May02.010252.3353@uni-hamburg.de>, shernandez@uni-hamburg.de (Seo-yeon Hernández) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- === Tomas Kang === Dept of Electrical Engineering, Kurchatov Institute of Atomic Energy, Moscow "A soul is not exclusive to biology." From svasiliev@kiae.su Fri May 05 09:57:52 1995 Path: ashpoly!cascade!brgate!saturno!kiae!svasiliev From: svasiliev@kiae.su (Seo-yeon Vasiliev) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995May05.095752.4861@kiae.su> Date: Fri, 05 May 1995 09:57:52 GMT References: <1995May02.010252.3353@uni-hamburg.de> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1995May02.010252.3353@uni-hamburg.de>, shernandez@uni-hamburg.de (Seo-yeon Hernández) 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. -- Seo-yeon Vasiliev Tape trading list upon request. SASE required for international mail. From gandersson@kiae.su Sat May 06 23:56:52 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!kiae!gandersson From: gandersson@kiae.su (Graham Andersson) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995May06.235652.6640@kiae.su> Date: Sat, 06 May 1995 23:56:52 GMT References: <1995May02.010252.3353@uni-hamburg.de> <1995May04.123652.8531@kiae.su> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1995May04.123652.8531@kiae.su>, tkang@kiae.su (Tomas Kang) writes: > Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. > Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- === Graham Andersson === Dept of Electrical Engineering, Kurchatov Institute of Atomic Energy, Moscow "The hatch is open. Is anyone listening?"