Re: intel 7.0 compilers; rpm malfunctioning
On Thursday 19 December 2002 01:08 am, Oleg wrote:
>
> P.P.S To preemptively answer the inevitable question why I want Intel
> compilers in addition to GCC: I'm interested in high-performance
> numeric computing, looking at the code Intel compilers generate, and
> comparing different compilers' performance.
Our university funded DOE ASCI center went through a similar comparison
with a large C++ code. We actually had several Intel engineers bang
away on the compilers trying to tweak compiler flags and the code
itself. Even turning on special undocumented flags, and tweaking the
code, the performance was no better than using gcc. In fact the
optimizations they did to the code also helped gcc. We didn't find
that the Intel compilers would yield any benefit. Your mileage will
vary though. Good luck
John Schmidt
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