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Optimization keys of ifort/9.0 for Opteron ?

Mikhail_K_1
Beginner
‎07-14-2005 01:12 PM
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For 8.1 version of ifort it was recommended to use -O3 -xW keys for
generation of codes for Opteron CPUs.
In 9.0 there are new optimization "-x keys" plus new Opteron's work w/SSE3.
What are now the best ("in common case") optimization keysfor Opteron?
Mikhail Kuzminsky
Zelinsky Institute of Organic Chemistry
Moscow
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Steven_L_Intel1
Employee
‎07-14-2005 02:57 PM
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If you will be running on Opteron only, the same advice applies: -xW. If you will also be running on Intel processors with Intel EM64T, then use -xW -axP with our EM64T compiler.
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