[CI] SVE-512 tests timeout

[SadiinsoSnowfall]

Some tests such as unit.algo.algorithm.min_element_generic_one_pass.exe and unit.algo.algorithm.swap_ranges_generic.exe regularely timeout under SVE-512.

[jfalcou]

I am dropping this old idea back here for discussion.
Instead of compiling tests for cardinal 1 2 4 ... N 2N , what about comiling only for 1 N/2 N N2. It prevents the ballooning with large register ISA.

Currently on AVX512 we test :

• (1 2 4 8 16) x 3 for 64 bits types
• (1 2 4 8 16 32 ) x 3 for 32 bits types
• (1 2 4 8 16 32 64) x 2 for 16 bits types
• (1 2 4 8 16 32 64 128 ) x 2 for 8 bits types
  For a total of 63 instances of tests

With the other one, it'll be 4 tests per types, for 10 types total, for a grand total of 40. SO a reduction of 36.8% of the number of tests.

[DenisYaroshevskiy]

1. Those are algo tests, they try reduced number of types already.

2.I think it's mostly about trying to validate too many things. Those are two_range generic tests. We should look at those and see if we can loop less

[jfalcou]

Should we then investigate using fuzz8ng firbthe algo test ?

[DenisYaroshevskiy]

Fuzzing would be amazing. I could spend less time designing horrific contraptions to catch bugs. But you need like somewhere to run those. I doubt oss fuzz will take eve

[jfalcou]

We can ask