What level of optimization did you use with icc?
Randolph
On 2011-09-11 14:01:29 -0700, Guy Vaessen said:
>> The performance of the Intel compiler is worse than the gcc compiler 4.5.2.
> Do you mean it takes longer to compile, or that Radiance runs more
> slowly compiled by icc?
Radiance runs more slowly compiled by icc.
The rpict time of gcc 4.5.2 is around 17 minutes 45 seconds and
the rpict time of icc V12 Update 6 is 20 minutes.
The binaries (elf files) produced by the Intel compiler are 1 MB which
is twice the size of the binaries produced by gcc.
Another idea is to post a message on an Intel forum, informing them
about gcc's better performance, they seem interested in this kind of
information.
Maybe Intel can learn from gcc and improve their own compiler.
Guy
--
Randolph
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