Author: Jay Urbanski
Date: 03:49:07 06/18/03
Go up one level in this thread
On June 16, 2003 at 23:50:58, Brian Richardson wrote: >On June 15, 2003 at 23:41:11, Eugene Nalimov wrote: > >>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)? >> >>Visual C, of course :-) >> >>And your Itanium numbers are much slower than mine, even when I am using >>publicly available 64-bit Visual C, not the latest and greatest we have here... >> >>Thanks, >>Eugene >> > >I have C++ .NET under Visual Studio 2003 Enterprise Ed version 7.1 something and >cannot find anything to compile for the Opteron. The "Optimize for Processor >Option" only has Intel types. Am I missing something simple? > >I'll also double check the Itanium2 results...there was a large difference >(about 3x) between x86 and re-compiled IA-64 binaries. > >Thanks, >Brian I'm pretty sure Eugene has access to versions of Visual C that you don't.
This page took 0 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.