Re: [ROOT] Intel icc compiler on Linux...

From: Pasha Murat (630)840-8237 FNAL (630)859-3463 home (murat@fnal.gov)
Date: Sat May 18 2002 - 03:55:32 MEST


> >On Thu, 2002-05-16 at 11:12, Matt Palmer wrote:
> >> >> Fons Rademakers writes:
> >> >>  >   with the current version of ROOT in CVS we now fully support the
> >> >>  > latest Intel icc v6 compiler.
Matt Palmer wrote:
> 
> I've now had success with this - I think it must have been a problem due to
> not being able to do a proper install if icc.  The great thing is I've seen a
> 30% speed increase just from changing compiler!

Hi Rooters - it would be really nice if somebody who has already installed icc 
and built ROOT with it would also post to the list comparison of the sizes of 
ROOT libraries as compiled with icc and gcc. Would be a very important piece of 
information. Just for comparison - what we are seeing at CDF (we're currently 
using KAI compiler, KAI was bought by Intel not so long ago) is that when we 
compile our code in debug mode, then the GCC3-compiled libraries are larger 
than the KAI-compiled libraries by a very large - 5-10 times - factor (although
the code is rather heavily templated...)

							thanks a lot, Pasha



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