> Intel ifort  is 7.7x faster then Linux g95 on MacPro 3.0 GHz
> Intel ifort  is 2.9x faster then Linux g95 on Dual Opteron 1.4 GHz
> Intel ifort  is 1.8x faster then Linux g95 on SGI Altix 350 dual  
> Itanium2 1.4 GHz
> OS X g95 is 2.7x faster then Linux g95 on a MacPro 2.66 GHz (same  
> hardware exactly)

That ordering makes little sense to me.  The Intel compilers should be
the most effective on Itanium, where a lot of functionality has been
moved out of hardware and foisted onto the compiler!

Have you done these tests with a recent gfortran?  (Certainly the gcc
people would want to know about it as these must be missed
optimisations.  But only for the gfortran case.)

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