Icc

This site contains hints for the use of the Intel C and FORTRAN Compiler.

BENCHIT_CC_C_FLAGS_HIGH and BENCHIT_F77_C_FLAGS_HIGH should always contain:

-O3
-fno-alias (for most kernels, can generate wrong results if not used properly!)
-mcpu={pentium,pentiumpro,pentium4,itanium,itanium2,itanium2-9000}
-x*, where * should be looked up at the help.W for Williamette N for Northwood, P for Prescott, ...
- if you set this flag you shouldn't need mcpu and mtune
- this is only available for x86/x64 afaik
- -ax* produces Code for the given processor and standard x86, so it shouldn't be used
-tpp{some number} (take a look at manpages), -tpp2 for Itanium2
- the -tpp option is deprecated with newer ICC Versions (since 10.0.0?) use -mtune=itanium2 (for IA-64) instead

BENCHIT_CC_C_FLAGS_OMP and BENCHIT_F77_C_FLAGS_OMP should be "-openmp"