Author: Gerd Isenberg
Date: 23:12:27 09/23/03
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On September 23, 2003 at 16:08:50, Robert Hyatt wrote: >On September 23, 2003 at 11:50:03, Slater Wold wrote: > >>Just FYI, with the standard exe off Hyatt's FTP, a dual opteron 246 (K8D Master >>motherboard, Windows XP Pro, 2GB RAM) gets 2.22M nps on Crafty 19.03. >> >>With an optimized exe (Intel compiler) it gets 2.6M nps. >> >> >>Smoking for a 2.0Ghz machine... > > >The main problem with that is that it is still using 32 bit code everywhere, >eliminating the main advantage of the Opteron. IE the Intel compiler only >produces X86 code... > >real 64 bit results will be very interesting to see. I hope we have some duals >reasonably soon. There is already a 64 bit linux kernel for the opteron, so the >question will be how does gcc do for 64 bit stuff? we'll see, hopefully pretty >soon. Yes, not only 64-bit but also eight additional 64-bit gp-registers. More fastcall passing, even for bitboards. In general less stores and loads for locals and actual parameters. I guess that will give a boost too. Gerd
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