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Subject: Re: Intel C++ 7.0 compiler questions...

Author: Robert Hyatt

Date: 19:34:41 12/25/02

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On December 24, 2002 at 10:55:17, Vincent Diepeveen wrote:

>On December 24, 2002 at 04:47:21, Frank Phillips wrote:
>
>>On December 23, 2002 at 12:12:29, Vincent Diepeveen wrote:
>>
>>>On December 23, 2002 at 12:01:10, Robert Hyatt wrote:
>>>
>>>You forget the crucial data point and that's that you have
>>>no AMD K7s out there.
>>
>>Intel is about 30% faster than gcc3.2 (and gcc2.95 and gcc 2.96) with profile
>>guided optimisation for me on my AMD Athlons (Palomino and Thoroughbred).  Not
>>all of this can be due to incompetence, I suggest.
>>
>>Frank
>
>you must be using bitboards then. No other option possible.
>profile guided optimization speeds me up 20% at k7 with gcc 3.x
>


How can you possibly say "no other option possible"???

Intel _also_ does profile-guided optimizations.  But I can think of _lots_
of reasons why he might get better results than you get.  Starting with his
programming style which might be _better_...



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