From: Douglas A. V. <dou...@dy...> - 2004-06-21 15:56:36
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Michael Gerdau wrote: >>I am experiencing significantly longer exection speeds when compiling >>with g77 under cygwin using the -mno-cygwin option. >> >> > >Which compiler are you using ? > >MinGW's g77, e.g. >http://prdownloads.sf.net/mingw/gcc-g77-3.3.1-20030804-1.tar.gz >or something different ? > >Given your option '-mno-cygwin' I'd assume something different. > >If something different then this list most likely isn't the right >place to ask. > > I'm using g77 3.3.1 from within the Cygwin environment and have a Mingw environment with g77 3.2.3. >If you can provide a small selfcontained example I'd be willing >to test this using gcc-g77-3.3.3-20040217-1.tar.gz > >Best, >Michael > > I've attached a small example code which I just made up and tried and am experiencing somewhat similar time ratio differences but it illustrates the point. (The attached code does nothing but calculate a bunch of sin's, cos's, tan's, and cexp's). Similar to my original post, I provide the following times on a 733 MHz machine. Case A : 27.9 (Linux ) Case B : 63.3 (Cygwin g77 using -mno-cygwin) Case C: 47.4 (Cygwin g77) Case D: 30.2 (Digital Fortran) Case E : 64.9 (Mingw32 g77) |