Randolph,
I just added the data to the Benchmark page. He used "-O3 -xHost"
Mark
http://markjstock.org/pages/rad_bench.html
···
On Mon, 12 Sep 2011, Randolph M. Fritz wrote:
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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