[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]

Re: Opinions on packaging ATLAS (for the x86 architecture)



2009/9/26 Haïkel Guémar
Right, but SSE3 ain't the least denominator of x86_64 at all.
Early AMD64 chips (3 to 5 years old) doesn't support SSE3 as x86_64
predates SSE3. You can safely assume that all AM2 socket based chips are
SSE3 enabled.

I do agree perfectly with you, however, SSE3 capability can definitely be queried by checking the presence of flag pni (Prescott New Instructions) in /proc/cpuinfo.

AMD cores Sledgehammer (steppings C0, CG) and Clawhammer (stepping CG) do not support SSE3 only cores from San Diego (stepping E4) on. ~C

[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]