IFX openmp dependence

[DataScientist]

From the most recent webinar recordings on Intel ifort and ifx, I realize that ifx automatically enables the OpenMP flag. Does this mean that any software distribution built with ifx requires the Intel runtime environment (for the OpenMP shared files) as well?

[Steve_Lionel · Accepted solution]

My tests show that there is no dependency on OpenMP libraries unless you use OpenMP things.

[Barbara_P_Intel]

In the webinar, Ron mentioned that for ifx -qopenmp-simd is ON by default at –O1 and above. So if you use OpenMP SIMD directives they are automagically used. To disable those, use -qno-openmp-simd.

Similar thing for ifort except -qopenmp-simd is ON by default at –O2 and above.

Link info in the Fortran Developer Guide.