Author: Vincent Diepeveen
Date: 06:58:06 06/14/03
Go up one level in this thread
On June 14, 2003 at 01:48:07, Brian Richardson wrote: >On June 13, 2003 at 22:44:57, Vincent Diepeveen wrote: > >>On June 13, 2003 at 19:28:34, Brian Richardson wrote: >> >>Hello your opteron performance is not correct. >> >>If you native compile 64 bits with GCC at the opteron crafty with branch >>optimizations (that means you compile 1 time with profile option then run it for >>a number of minutes then recompile, gives big extra speed) and then run dual you >>should get about 4 million nodes a second. And not a node less than that. >> >>Even at specint the 64 bits gcc compiled version is about 60% faster than bob's >>own machine has. specint is not using even inline assembly nor profile >>reinforced code (which matters really a lot at the opteron and near to zero at >>the itanium2 becuase it's a buggy predication processor). >> >>Best regards, >>Vincent >> > >I forgot to mention that this was under Windows 2003. >I have not found a native code Opteron compiler yet. > >Does anyone have suggestions? (besides running Linux)? Make it dual boot linux. You're not going to run an IA32 executable at the itanium eiterh to 'benchmark' it. That's what you do though. Note that it is possible to run IA32 at the itaniums. It is very dead slow around 200Mhz regions. > >>>Note the time differences between versions, and the relative SMP scaling. >>> >>> Version CPUs Total SMP Raw nodes >>> elapsed time-to-ply per second >>> time >>>Opteron 244 (1.7GHz) 19.03 2 28 22.857143 1976833 >>>Opteron 244 (1.7GHz) 19.03 1 43 14.883721 1234812 >>>AMD 1900+ (1.6GHz) 19.03 2 39 16.410256 1408076 >>>AMD 1900+ (1.6GHz) 19.03 1 56 11.428571 948159 >>>Opteron 244 (1.7GHz) 18.15 2 48 13.333333 1807684 >>>Opteron 244 (1.7GHz) 18.15 1 77 8.311688 1097373 >>>AMD 1900+ (1.6GHz) 18.15 2 71 9.014085 1278866 >>>AMD 1900+ (1.6GHz) 18.15 1 104 6.153846 812478 >>>Itanium2 1GHz 18.15 2 112 5.714286 959705 >>>Itanium2 1GHz 18.15 1 186 3.44086 524126 >>> >>>Note all runs with: >>>hash table memory = 384M bytes. >>>pawn hash table memory = 24M bytes. >>>EGTB cache memory = 1M bytes.
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