Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Intel compiler for Linux

Author: Robert Hyatt

Date: 06:57:28 03/01/03

Go up one level in this thread


On March 01, 2003 at 03:26:19, Alessandro Damiani wrote:

>On March 01, 2003 at 00:24:41, Robert Hyatt wrote:
>
>>On February 28, 2003 at 17:39:55, Dann Corbit wrote:
>>
>>>On February 28, 2003 at 17:34:23, Matthew Hull wrote:
>>>
>>>>On February 28, 2003 at 14:37:53, Robert Hyatt wrote:
>>>>
>>>>>On February 28, 2003 at 12:21:26, Russell Reagan wrote:
>>>>>
>>>>>>On February 28, 2003 at 12:15:22, Robert Hyatt wrote:
>>>>>>
>>>>>>>I've been using it since version 6.0, and for Crafty it
>>>>>>>produces the
>>>>>>>fastest executable of any compiler I have tried.
>>>>>>
>>>>>>Fastest linux executable, or fastest executable period, including the MS
>>>>>>compilers?
>>>>>
>>>>>
>>>>>fastest linux is all I can say with any degree of confidence.  I don't have any
>>>>>easy way
>>>>>to compare to MSVC and windows since I don't have any "equal" machines here yet.
>>>>>
>>>>>We are expecting a group of dual xeons that will be half linux half windows XP
>>>>>within
>>>>>a week or two so I might get to compare there, but I'd personally suspect that
>>>>>MSVC
>>>>>is going to be better (faster) based on past experience.  Intel probably has
>>>>>closed the gap,
>>>>>but not completely I suspect.
>>>>
>>>>
>>>>I thought Dan Corbit had said his binaries are done with Intel for max
>>>>performance on Windows, not MSVC.
>>>
>>>Usually, Intel makes better binaries than MS VC++ 6.0 (with all relevant
>>>patches)
>>>
>>>However, the MS VC++ .NET compiler frequently beats the Intel compiler.
>>>
>>>In addition, the latest MINGW GCC will sometimes pull a surprise with the right
>>>combination of compiler flags.
>>
>>I try the latest gcc from time to time.  I tried the most recent (non-beta)
>>version today and discovered the profile-based optimization is DOA.  Compiles
>>fine, produces the profile files fine, but re-compiling causes the compiler to
>>go into a royal snit complaing about corrupted profile data with impossible
>>branch addresses and the like.  And without profiling Intel doesn't just beat
>>it, it destroys it.  Profiling closes the gap, but it doesn't work in the
>>current gcc 3 compiler (for Crafty it doesn't work, I have not tried it on
>>other programs).
>
>Dann is talking about the MINGW variant of GCC (www.mingw.org). Did you mean
>this one or the normal GCC? I guess the MINGW is faster than the normal GCC on
>Windows maschines.
>
>Alessandro


No.  I was talking about gcc 3.x as released for unix platforms....



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.