Intel® C++ Compiler
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does Intel C compiler insert prefetch action automaticaly??

m9109102
Beginner
‎01-08-2004 12:47 AM
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IfIntel Cinsert prefetch automaticaly, how to close it?Im not mean the hardware prefetch, but if u know how to disable it, please tell me, Thanks a lot!!
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TimP
Honored Contributor III
‎01-08-2004 05:39 AM
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Intel C for IA32 inserts software prefetch automatically only when P-III code generation is selected. Even then, the P4 scheduling modifiers (Windows /G7, linux -tpp7) will turn it off.

Intel C for IA64 does automatic software prefetch only at -O3. There is no hardware prefetch on IA64.

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