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Subject: Re: Hyperbole?

Author: Robert Hyatt

Date: 15:17:09 07/03/03

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On July 03, 2003 at 17:16:40, Jeremiah Penery wrote:

>On July 03, 2003 at 01:57:28, Ricardo Gibert wrote:
>
>>On July 02, 2003 at 18:53:22, Dan Andersson wrote:
>>
>>> For those that have waited for a faster compiler for AMD64.
>>>http://www.theinquirer.org/?article=10292
>>>The links in the document contain useful information.
>>>Wonder what it will do for chess programs.
>>>
>>>MvH Dan Andersson
>>
>>If you look at http://www.pgroup.com/images/pg50vpg41.jpg you will see they only
>>give the relative performance to a previous version of the same compiler. No
>>absolute scores. Since they do not offer any absolute scores, I would assume
>>they are nothing to brag about. A 375% percent improvement over junk can still
>>be junk. Do not expect miracles.
>
>It can be, but there's no reason to expect it to be junk.  Look at Sun's
>optimization of 179.art to see an extraordinary example to the contrary.
>AFAIK, PCG's compiler has always had pretty good performance.


It has been very good.  We have used both their C and FORTRAN compilers on
my cluster here with good results.  I think the Intel C++ compiler is a bit
better in terms of speed, however.



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