[Beowulf] Intel compiler specifically tuned for SPEC2k (and other benchmarks?)

Mikhail Kuzminsky kus at free.net
Mon Jul 23 12:44:16 EDT 2012


According to =?big5?q?Andrew=20Wang?=
> From comp.arch: "One of the things that the version
> 8.0 of the Intel compiler included was an
> "Intel-specific" flag."
> 
> But looks like the purpose is to slow down AMD:
> http://groups.google.ca/groups?dq=&hl=en&lr=&ie=UTF-8&oe=UTF-8&group=comp.arch&selm=a13e403a.0402091438.14018f5a%40posting.google.com
> 
> If intel releases 64-bit x86 CPUs and compilers, then
> AMD may get even better benchmarks results.
  The danger of this "slow-down" is not too extremally large now:
SPECcpu2000 results (perhaps the best obtained) published for
"high-end" Opterons are based on Portland compiler, not on ifc.

Mikhail Kuzminsky
Zelinsky Institute of Organic Chemistry
Moscow

> 
> Again, no matter how pretty the benchmarks results
> look, in the end we still need to run on the real
> system. So, what's the point of having benchmarks?
> 
> Andrew.
> 
  
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