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Subject: Re: Crafty (64-bit) vs Blargh - Result & Games

Author: Frank E. Oldham

Date: 11:23:09 05/29/04

Go up one level in this thread


On May 29, 2004 at 13:47:28, Slater Wold wrote:

>On May 29, 2004 at 11:21:02, Robert Hyatt wrote:
>
>>On May 29, 2004 at 05:18:08, Slater Wold wrote:
>>
>>>On May 28, 2004 at 20:37:11, Frank E. Oldham wrote:
>>>
>>>>On May 28, 2004 at 18:25:40, Slater Wold wrote:
>>>>
>>>>>On May 28, 2004 at 18:05:16, Frank E. Oldham wrote:
>>>>>>              time=77:56  cpu=390%  mat=0  n=10705561160  fh=91%  nps=2.29M
>>>>>>
>>>>>>Frank
>>>>>
>>>>>That a dual with HTing or a true quad?  What speed are the CPUs?
>>>>
>>>>Neither :-)
>>>>It's a dual G5 @ 2GHz;
>>>>crafty has a bug where it doesn't count up thread times correctly on Solaris or
>>>>Mac OS X (and perhaps on any BSD-derived os) -- Bob indicated that he'll try to
>>>>fix it sometime.
>>>>The biggest performance problem is the crappy gcc compiler :-(
>>>>Frank
>>>
>>>G5?  So is it 32 or 64 bit?
>>
>>
>>64
>
>So a single AMD FX53 in 64-bit is faster than a dual G5.  Wow.  That compiler
>must be trash.

As an example, even though the G5 (IBM 970) has 32 64-bit general registers,
gcc refuses to pass a bitboard in a register -- it decomposes it into two 32-bit
pieces,
and uses two registers to pass them...
it won't inline worth squat either

Frank



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