On Saturday July 18 2020 10:20:44 Thiago Macieira wrote:

>That's a Braswell-based Atom:
Or rather a Celeron (whatever the exact difference is)?
https://en.wikichip.org/wiki/intel/celeron/n3150

>So -march=silvermont.

Thanks, will try though 
[https://en.wikichip.org/wiki/intel/microarchitectures/silvermont] suggests 
that Silvermont has the rdrand instruction that my i7 doesn't have.
>
>Anyway, -march=native is supposed to work on any machine that runs the code it 
>compiled. If that fails,

Of course it does, and no, it doesn't.

R
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