Author: Robert Hyatt
Date: 20:47:24 12/09/03
Go up one level in this thread
On December 09, 2003 at 23:44:10, Slater Wold wrote: >On December 09, 2003 at 23:30:40, Robert Hyatt wrote: > >>On December 09, 2003 at 23:17:10, Slater Wold wrote: >> >>>Results per SPEC & AMD. >>> >>> >>>AMD Opteron 148 (2.2Ghz) - SuSe 9.0 (AMD64) - gcc 3.3.1 >>> >>>Average - 1902 >>>Peak - 1936 >>> >>>AMD Opteron 148 (2.2Ghz) - Windows XP Pro - Intel C/C++ 7.0 >>> >>>Average - 1504 >>>Peak - 1506 >>> >>> >>>Average Speedup - 26% >>>Peak Speedup - 29% >> >> >>The comparisons are no good. The intel compiler is much better than >>gcc. Making the 32 bit code appear better than it should, or else making >>the 64 bit code appear worse. You need the same compiler, same operating >>system, same everything, except -m32 and -m64 to make this comparison >>really accurate. > >I knew you were going to say that! :) Knowing that ICC is at least 20% faster than gcc for crafty, it is important. Seems that gcc's PGO is broken as well, while Intel's is not (by the way, for anyone interested, version 8.0 of the intel compiler is now out.)
This page took 0.01 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.