Intel Compiler Options for AMD Processor

draceswbell.net
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June 30, 2009 8:57 PM PDT
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#3
Quoting - draceswbell.net
We have a customer who is trying to use a single compiler suite across platforms, but the intel compiler is giving slower performance than the pgi compiler on the AMD processor.  The current options used for the compiler are

O3 -g -xHost -fno-fnalias -fno-alias -sox -traceback -complex-limited-range

Is there a better set of generic options that should be used for the latest AMD processor? 

I have checked the knowledge base and I could have missed a thread here, but none of these seem to address this issue very much.  Any information is appreciated.


Thanks.  This is in line with the option tests we tried.  We will try to get a test case that shows the difference in performance, but this is proprietary code that is very large so it will take a while to reduce this to a small test case.

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