Author: Robert Hyatt
Date: 06:04:58 12/10/03
Go up one level in this thread
On December 10, 2003 at 00:25:16, Eran Karu wrote: >On December 09, 2003 at 23:47:24, Robert Hyatt wrote: > >>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.) > >Where can I find version 8.0 of the intel compiler? > >Is it for Windows 2000 Pro? Is it freeware? > >Does it optimize Crafty? > >Thanks, >Eran Karu Go to www.intel.com, look for "intel C++ compiler". For linux, and non-commercial usage, it is free...
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