Is it possible that with all the models you’re testing you’re going to find simple rules to optimize kernels so that we won’t need a meta optimizer in the future ? And just code something straight that applies the most important optimizations. Maybe the current search is always ending up on the same kind of codes in the end

See my comment on a deeper thread about this. Eventually we will implement static profiling for common kernels so the search doesn't actually have to manually run all of them; many will have a known runtime that we can tie to them.