AVX Support in Version 2025.3

[Marko242]

I updated the oneAPI MKL from version 2023.1 to 2025.3 and run into an issue with configuring the CNR mode (Conditional Numerical Reproducibility Control).

I set CNR mode with function "mkl_cbwr_set" to code branch "MKL_CBWR_AVX" on a Intel Core i7-3610QE.
This runs fine in Version 2023.1.

In Version 2025.3 the function Returns an error "MKL_CBWR_ERR_UNSUPPORTED_BRANCH" saying "the input value of the branch does not match the instruction set architecture (ISA) of your system".
I checked the supported instructions sets with an external Tool (Coreinfo from Sysinternals) on the system with the Intel Core i7-3610QE. The tool displays that the AVX instruction set is enabled for the CPU.

I could not find any information whether or not the AVX instruction set is not supported for certain CPUs.

So why does this not work anymore?
Does anybody can reproduce this behaviour or has more information?

[Andrew_Smith]

Check your symbol MKL_CBWR_AVX was corectly defined

[Fengrui · Accepted solution]

The support for AVX has been dropped since the 2024.0 release: https://www.intel.com/content/www/us/en/developer/articles/release-notes/onemkl-release-notes-2024.html#:~:text=Dropped%20all%20SSSE3%20and%20AVX%20optimizations%C2%A0