Author: Andreas Guettinger
Date: 11:58:12 12/19/05
Go up one level in this thread
On December 19, 2005 at 11:36:50, Tord Romstad wrote: >On December 19, 2005 at 11:24:56, Daniel Mehrmannn wrote: > >>Homer x64 has a speedup of 10-20% versus the 32Bit version. >>I created now a 64Bit version of Homer Leiden for MAC OSX too. >>But i can't test it, because i haven't an G5 CPU. You can download >>it on the same way as the Windows x64 version. >>It would be very interessting how much speedup this version gets. > >Hi Daniel, > >I just gave it a try on my iMac G5, with a rather disappointing result: >The G5 executable was actually about 5% *slower* than the regular >version. Yes, the executable is slower than the G4 one. I get 330 knps with the G4, 315 knps with the G5 one in the starting postion. >Which compiler flags do you use? I add "-mcpu=G5 -mpowerpc64" >to the compiler flags when compiling a G5 optimised Glaurung >executable. > >Tord Additional flags would be "-mtune=G5" and "-fast" which turns on some PowerPc specific optimizations. Andreas
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.