Author: Brian Richardson
Date: 18:56:03 02/16/03
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On February 16, 2003 at 19:08:03, Robert Hyatt wrote: >On February 16, 2003 at 16:50:48, Brian Richardson wrote: > >>I have been running some informal Itanium2 tests with Tinker and Crafty (18.15). >>The results are not encouraging. I know Bob Hyatt has posted better numbers for >>Itanium2, but I can’t come even close. Then again, I am no professional >>compiler developer or performance engineer. Anyway, here is the data (Knps). >> >>Intel IA64 Itanium2 (1GHz) dual CPU system vs dual AMD 1900+ (1.6GHz) >> >>Crafty18.15 1 CPU 2 CPUs SMP Speedup >>IA64 368 715 1.94 >>AMD 615 1015 1.65 >>IA64 Slower 40% 30% >> > > > >That looks horrible. What compiler, etc? IE the best results I have seen >come from the microsoft in-house compiler guys. Even a 1ghz processor should >be faster than that using a raw PIII at 1ghz... That is the point. Most of use do not have access to Microsoft and Intel compiler experts. I used the free IA-64 compiler updates from Intel and Microsoft at: http://www.intel.com/software/products/compilers/downloads/cwin.htm http://www.microsoft.com/msdownload/platformsdk/sdkupdate/ > > > > >>x86 binary >>on IA64 170 337 1.98 >>IA64 Slower 72% 67% >> >> >>Tinker >>IA64 260 >>AMD 330 >>IA64 Slower 21% >> >>x86 on IA64 103 >>IA64 Slower 69% >> >> >>Note that the 2 CPU SMP efficiency for the Itanium2 system is significantly >>better than the dual AMD system, as has been reported before. >> >>Also, note that both the Intel and Microsoft Itanium2 compilers produced >>different results, depending on debug (no optimization) vs optimization modes. >>Also, I could not get Crafty to compile with the Intel compiler, and some Tinker >>routines broke the Intel optimizer. Moreover, the Intel compiler produced code >>about 5% or so faster than the Microsoft compiler for Tinker. I was not able to >>get profiling to work, nor did I try Vtune. >> >>The results are more or less in line with the SPEC CPU2000int results for Crafty >>(see www.spec.org), some of which are (run times in seconds): >> >>Hewlett-Packard Company hp server rx2600 (1000 MHz, Itanium 2) >>186.crafty 128 >> >>Advanced Micro Devices Epox 8KHA+ Motherboard, AMD Athlon (TM) XP 1900+ (CPU >>MHz: 1600) >>186.crafty 106 >> >>Intel Corporation Intel D850EMVR motherboard (3.06 GHz, Pentium 4 processor with >>HT Technology) >>186.crafty 86 >> >>Advanced Micro Devices ASUS A7N8X (REV 1.02) Motherboard, AMD Athlon (TM) XP >>2800+ (CPU MHz: 2250) >>186.crafty 76.3
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