IBM just released XLC for MacOS X. Highly tuned for G5!

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ed m.ed m.
Posted:
in Current Mac Hardware edited January 2014
This just in... I received this information via e-mail and thought I might pass it along:



IBM just released XLC for MacOS X. XLC is a world class C compiler highly

tuned for Power4 and G5. They also released FORTRAN too.



http://www-3.ibm.com/software/awdtools/ccompilers/



http://www-3.ibm.com/software/awdtools/fortran/



I also posted it in the Future Hardware forum so more people would see it.



--

Ed

Comments

  • Reply 1 of 7
    altivec_2.0altivec_2.0 Posts: 995member
    This is good news. I doubt Panther would be compliled on this. But, the GM might be if apple can get a hold of it and everything works out.
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  • Reply 2 of 7
    halsehalse Posts: 53member
    (a) it is now available to download to anybody who registers

    (b) Apple (and Adobe etc) almost certainly had the pre-beta versions of this months ago
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  • Reply 3 of 7
    eugeneeugene Posts: 8,254member
    I wonder how well it optimizes for pre-970 CPUs...Never having used XLC before, the included documentation seems pretty sparse.
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  • Reply 4 of 7
    eugeneeugene Posts: 8,254member
    Nevermind, I screwed up the compile with GCC, so it ended up with some really crappy numbers.
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  • Reply 5 of 7
    markivmarkiv Posts: 180member
    The scores are fantastic, may by MWSF 2004 final version would be out, it's going to kick some ass.
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  • Reply 6 of 7
    johnjosephbachirjohnjosephbachir Posts: 61member
    Eugene, on what hardware did you compile and run those tests?



    John
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  • Reply 7 of 7
    eugeneeugene Posts: 8,254member
    Quote:

    Originally posted by johnjosephbachir

    Eugene, on what hardware did you compile and run those tests?



    John



    I just realized that the -O3 switch wasn't set when I compiled on GCC. GCC is in fact very slightly faster than XL C with the LAME example. I've been playing a bit with all the available compiler flags and I can get LAME to encode at about 1.3x with the --alt-preset standard setting.



    This is on a 1 GHz G4.
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