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I am porting ifort (2021.5) to ifx (2024.2.1), and regression tests are failing on floating point values throughout the code.
The porting guide (Porting Guide for ifort Users to ifx) suggests using "/assume:[no]ieee_compares" to achieve ifort floating point behaviour in ifx. Despite this I'm getting the error: " ifx: command line error: Unrecognized keyword '[no]ieee_compares' for option '/assume' "
The fortran flags that I currently use with ifort (2021.5) are:
/fpe:0
/fp:precise
/arch:SSE2
/Qimf-arch-consistency:true
/Qdiag-disable:10212
My questions are:
Why is the [no]ieee_compares argument not recognised
Confirmation on what flags to use with IFX to achieve consistent numeric behaviour with my current ifort setup.
@XZ_IES if you did set: /assume:[no]ieee_compares that is of course not a valid option. You need to set either /assume:noieee_compares or /assume:ieee_compares
Marked as done to indicate that the initial error was argument formatting. I still haven't achieved parity in results, but I'll split that into its own question as necessary.
