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Old 05-08-2011, 06:00 PM   #1
Alexvader
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OpenWatcom vs Intel vs PathScale vs gcc


Hi

Does anyone here has any experience with the proprietary compilers...? OpenWatcom, Intel and Pathscale ...?

Does the performance gain is noticeable regarding the gcc...?

In number crunching applications, i may say that ifort/icc/mkl yeld faster binaries than gcc...

has anyone here already tinkered with OpenWatcom/PathScale...?

BRGDS

Alex
 
Old 05-09-2011, 06:28 AM   #2
rylan76
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Quote:
Originally Posted by Alexvader View Post
Hi

Does anyone here has any experience with the proprietary compilers...? OpenWatcom, Intel and Pathscale ...?

Does the performance gain is noticeable regarding the gcc...?

In number crunching applications, i may say that ifort/icc/mkl yeld faster binaries than gcc...

has anyone here already tinkered with OpenWatcom/PathScale...?

BRGDS

Alex
Not exactly what you seem to be looking for, but I remember this thread on the PovRay newsgroup was quite interesting and maybe at least partially relevant to your question:

http://news.povray.org/povray.unix/thread/%3C4aeb4755$1@news.povray.org%3E/

Also, if you google a bit you should find some stuff about Povray performance after compilation under several compilers... which might give you some viewpoints / info / pointers.
 
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Old 05-09-2011, 06:54 AM   #3
H_TeXMeX_H
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icc tends to generate faster binaries that gcc, but it's not FLOSS, and not every program can be compiled with it. Some programs only compile with gcc.
 
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Old 05-09-2011, 11:40 AM   #4
Alexvader
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Hi @rylan76, @H_TeXMeX_H

Thks for your answers
 
Old 05-09-2011, 03:05 PM   #5
NyteOwl
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OpenWatcom is now open (has been for a while) is a decent compiler or was. Nice thing about Watcom was the cross platform nature. I haven't used the latest version however so can't judge it.
 
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